c8042e1076
The Include, Parser, and Python directories from the cPython 2.7.10 distribution. These files are unchanged and set the baseline for subsequent commits. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Daryl McDaniel <edk2-lists@mc2research.org> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18737 6f19259b-4bc3-4df7-8a09-765794883524
3062 lines
90 KiB
C
3062 lines
90 KiB
C
/* Built-in functions */
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#include "Python.h"
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#include "Python-ast.h"
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#include "node.h"
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#include "code.h"
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#include "eval.h"
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#include <ctype.h>
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#include <float.h> /* for DBL_MANT_DIG and friends */
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#ifdef RISCOS
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#include "unixstuff.h"
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#endif
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/* The default encoding used by the platform file system APIs
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Can remain NULL for all platforms that don't have such a concept
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*/
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#if defined(MS_WINDOWS) && defined(HAVE_USABLE_WCHAR_T)
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const char *Py_FileSystemDefaultEncoding = "mbcs";
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#elif defined(__APPLE__)
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const char *Py_FileSystemDefaultEncoding = "utf-8";
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#else
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const char *Py_FileSystemDefaultEncoding = NULL; /* use default */
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#endif
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/* Forward */
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static PyObject *filterstring(PyObject *, PyObject *);
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#ifdef Py_USING_UNICODE
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static PyObject *filterunicode(PyObject *, PyObject *);
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#endif
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static PyObject *filtertuple (PyObject *, PyObject *);
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static PyObject *
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builtin___import__(PyObject *self, PyObject *args, PyObject *kwds)
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{
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static char *kwlist[] = {"name", "globals", "locals", "fromlist",
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"level", 0};
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char *name;
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PyObject *globals = NULL;
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PyObject *locals = NULL;
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PyObject *fromlist = NULL;
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int level = -1;
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if (!PyArg_ParseTupleAndKeywords(args, kwds, "s|OOOi:__import__",
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kwlist, &name, &globals, &locals, &fromlist, &level))
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return NULL;
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return PyImport_ImportModuleLevel(name, globals, locals,
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fromlist, level);
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}
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PyDoc_STRVAR(import_doc,
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"__import__(name, globals={}, locals={}, fromlist=[], level=-1) -> module\n\
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\n\
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Import a module. Because this function is meant for use by the Python\n\
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interpreter and not for general use it is better to use\n\
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importlib.import_module() to programmatically import a module.\n\
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\n\
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The globals argument is only used to determine the context;\n\
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they are not modified. The locals argument is unused. The fromlist\n\
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should be a list of names to emulate ``from name import ...'', or an\n\
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empty list to emulate ``import name''.\n\
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When importing a module from a package, note that __import__('A.B', ...)\n\
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returns package A when fromlist is empty, but its submodule B when\n\
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fromlist is not empty. Level is used to determine whether to perform \n\
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absolute or relative imports. -1 is the original strategy of attempting\n\
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both absolute and relative imports, 0 is absolute, a positive number\n\
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is the number of parent directories to search relative to the current module.");
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static PyObject *
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builtin_abs(PyObject *self, PyObject *v)
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{
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return PyNumber_Absolute(v);
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}
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PyDoc_STRVAR(abs_doc,
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"abs(number) -> number\n\
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\n\
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Return the absolute value of the argument.");
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static PyObject *
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builtin_all(PyObject *self, PyObject *v)
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{
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PyObject *it, *item;
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PyObject *(*iternext)(PyObject *);
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int cmp;
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it = PyObject_GetIter(v);
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if (it == NULL)
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return NULL;
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iternext = *Py_TYPE(it)->tp_iternext;
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for (;;) {
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item = iternext(it);
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if (item == NULL)
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break;
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cmp = PyObject_IsTrue(item);
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Py_DECREF(item);
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if (cmp < 0) {
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Py_DECREF(it);
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return NULL;
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}
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if (cmp == 0) {
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Py_DECREF(it);
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Py_RETURN_FALSE;
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}
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}
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Py_DECREF(it);
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if (PyErr_Occurred()) {
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if (PyErr_ExceptionMatches(PyExc_StopIteration))
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PyErr_Clear();
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else
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return NULL;
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}
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Py_RETURN_TRUE;
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}
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PyDoc_STRVAR(all_doc,
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"all(iterable) -> bool\n\
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\n\
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Return True if bool(x) is True for all values x in the iterable.\n\
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If the iterable is empty, return True.");
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static PyObject *
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builtin_any(PyObject *self, PyObject *v)
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{
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PyObject *it, *item;
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PyObject *(*iternext)(PyObject *);
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int cmp;
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it = PyObject_GetIter(v);
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if (it == NULL)
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return NULL;
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iternext = *Py_TYPE(it)->tp_iternext;
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for (;;) {
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item = iternext(it);
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if (item == NULL)
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break;
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cmp = PyObject_IsTrue(item);
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Py_DECREF(item);
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if (cmp < 0) {
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Py_DECREF(it);
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return NULL;
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}
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if (cmp == 1) {
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Py_DECREF(it);
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Py_RETURN_TRUE;
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}
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}
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Py_DECREF(it);
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if (PyErr_Occurred()) {
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if (PyErr_ExceptionMatches(PyExc_StopIteration))
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PyErr_Clear();
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else
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return NULL;
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}
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Py_RETURN_FALSE;
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}
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PyDoc_STRVAR(any_doc,
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"any(iterable) -> bool\n\
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\n\
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Return True if bool(x) is True for any x in the iterable.\n\
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If the iterable is empty, return False.");
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static PyObject *
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builtin_apply(PyObject *self, PyObject *args)
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{
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PyObject *func, *alist = NULL, *kwdict = NULL;
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PyObject *t = NULL, *retval = NULL;
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if (PyErr_WarnPy3k("apply() not supported in 3.x; "
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"use func(*args, **kwargs)", 1) < 0)
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return NULL;
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if (!PyArg_UnpackTuple(args, "apply", 1, 3, &func, &alist, &kwdict))
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return NULL;
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if (alist != NULL) {
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if (!PyTuple_Check(alist)) {
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if (!PySequence_Check(alist)) {
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PyErr_Format(PyExc_TypeError,
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"apply() arg 2 expected sequence, found %s",
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alist->ob_type->tp_name);
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return NULL;
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}
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t = PySequence_Tuple(alist);
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if (t == NULL)
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return NULL;
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alist = t;
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}
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}
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if (kwdict != NULL && !PyDict_Check(kwdict)) {
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PyErr_Format(PyExc_TypeError,
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"apply() arg 3 expected dictionary, found %s",
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kwdict->ob_type->tp_name);
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goto finally;
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}
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retval = PyEval_CallObjectWithKeywords(func, alist, kwdict);
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finally:
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Py_XDECREF(t);
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return retval;
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}
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PyDoc_STRVAR(apply_doc,
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"apply(object[, args[, kwargs]]) -> value\n\
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\n\
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Call a callable object with positional arguments taken from the tuple args,\n\
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and keyword arguments taken from the optional dictionary kwargs.\n\
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Note that classes are callable, as are instances with a __call__() method.\n\
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\n\
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Deprecated since release 2.3. Instead, use the extended call syntax:\n\
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function(*args, **keywords).");
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static PyObject *
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builtin_bin(PyObject *self, PyObject *v)
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{
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return PyNumber_ToBase(v, 2);
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}
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PyDoc_STRVAR(bin_doc,
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"bin(number) -> string\n\
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\n\
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Return the binary representation of an integer or long integer.");
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static PyObject *
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builtin_callable(PyObject *self, PyObject *v)
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{
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return PyBool_FromLong((long)PyCallable_Check(v));
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}
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PyDoc_STRVAR(callable_doc,
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"callable(object) -> bool\n\
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\n\
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Return whether the object is callable (i.e., some kind of function).\n\
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Note that classes are callable, as are instances with a __call__() method.");
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static PyObject *
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builtin_filter(PyObject *self, PyObject *args)
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{
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PyObject *func, *seq, *result, *it, *arg;
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Py_ssize_t len; /* guess for result list size */
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register Py_ssize_t j;
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if (!PyArg_UnpackTuple(args, "filter", 2, 2, &func, &seq))
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return NULL;
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/* Strings and tuples return a result of the same type. */
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if (PyString_Check(seq))
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return filterstring(func, seq);
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#ifdef Py_USING_UNICODE
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if (PyUnicode_Check(seq))
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return filterunicode(func, seq);
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#endif
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if (PyTuple_Check(seq))
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return filtertuple(func, seq);
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/* Pre-allocate argument list tuple. */
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arg = PyTuple_New(1);
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if (arg == NULL)
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return NULL;
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/* Get iterator. */
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it = PyObject_GetIter(seq);
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if (it == NULL)
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goto Fail_arg;
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/* Guess a result list size. */
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len = _PyObject_LengthHint(seq, 8);
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if (len == -1)
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goto Fail_it;
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/* Get a result list. */
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if (PyList_Check(seq) && seq->ob_refcnt == 1) {
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/* Eww - can modify the list in-place. */
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Py_INCREF(seq);
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result = seq;
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}
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else {
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result = PyList_New(len);
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if (result == NULL)
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goto Fail_it;
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}
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/* Build the result list. */
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j = 0;
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for (;;) {
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PyObject *item;
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int ok;
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item = PyIter_Next(it);
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if (item == NULL) {
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if (PyErr_Occurred())
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goto Fail_result_it;
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break;
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}
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if (func == (PyObject *)&PyBool_Type || func == Py_None) {
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ok = PyObject_IsTrue(item);
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}
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else {
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PyObject *good;
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PyTuple_SET_ITEM(arg, 0, item);
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good = PyObject_Call(func, arg, NULL);
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PyTuple_SET_ITEM(arg, 0, NULL);
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if (good == NULL) {
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Py_DECREF(item);
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goto Fail_result_it;
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}
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ok = PyObject_IsTrue(good);
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Py_DECREF(good);
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}
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if (ok > 0) {
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if (j < len)
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PyList_SET_ITEM(result, j, item);
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else {
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int status = PyList_Append(result, item);
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Py_DECREF(item);
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if (status < 0)
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goto Fail_result_it;
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}
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++j;
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}
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else {
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Py_DECREF(item);
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if (ok < 0)
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goto Fail_result_it;
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}
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}
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/* Cut back result list if len is too big. */
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if (j < len && PyList_SetSlice(result, j, len, NULL) < 0)
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goto Fail_result_it;
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Py_DECREF(it);
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Py_DECREF(arg);
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return result;
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Fail_result_it:
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Py_DECREF(result);
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Fail_it:
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Py_DECREF(it);
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Fail_arg:
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Py_DECREF(arg);
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return NULL;
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}
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PyDoc_STRVAR(filter_doc,
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"filter(function or None, sequence) -> list, tuple, or string\n"
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"\n"
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"Return those items of sequence for which function(item) is true. If\n"
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"function is None, return the items that are true. If sequence is a tuple\n"
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"or string, return the same type, else return a list.");
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static PyObject *
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builtin_format(PyObject *self, PyObject *args)
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{
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PyObject *value;
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PyObject *format_spec = NULL;
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if (!PyArg_ParseTuple(args, "O|O:format", &value, &format_spec))
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return NULL;
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return PyObject_Format(value, format_spec);
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}
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PyDoc_STRVAR(format_doc,
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"format(value[, format_spec]) -> string\n\
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\n\
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Returns value.__format__(format_spec)\n\
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format_spec defaults to \"\"");
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static PyObject *
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builtin_chr(PyObject *self, PyObject *args)
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{
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long x;
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char s[1];
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if (!PyArg_ParseTuple(args, "l:chr", &x))
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return NULL;
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if (x < 0 || x >= 256) {
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PyErr_SetString(PyExc_ValueError,
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"chr() arg not in range(256)");
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return NULL;
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}
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s[0] = (char)x;
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return PyString_FromStringAndSize(s, 1);
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}
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PyDoc_STRVAR(chr_doc,
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"chr(i) -> character\n\
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\n\
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Return a string of one character with ordinal i; 0 <= i < 256.");
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#ifdef Py_USING_UNICODE
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static PyObject *
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builtin_unichr(PyObject *self, PyObject *args)
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{
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int x;
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if (!PyArg_ParseTuple(args, "i:unichr", &x))
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return NULL;
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return PyUnicode_FromOrdinal(x);
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}
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PyDoc_STRVAR(unichr_doc,
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"unichr(i) -> Unicode character\n\
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\n\
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Return a Unicode string of one character with ordinal i; 0 <= i <= 0x10ffff.");
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#endif
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static PyObject *
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builtin_cmp(PyObject *self, PyObject *args)
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{
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PyObject *a, *b;
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int c;
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if (!PyArg_UnpackTuple(args, "cmp", 2, 2, &a, &b))
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return NULL;
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if (PyObject_Cmp(a, b, &c) < 0)
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return NULL;
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return PyInt_FromLong((long)c);
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}
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PyDoc_STRVAR(cmp_doc,
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"cmp(x, y) -> integer\n\
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\n\
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Return negative if x<y, zero if x==y, positive if x>y.");
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|
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static PyObject *
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builtin_coerce(PyObject *self, PyObject *args)
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{
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PyObject *v, *w;
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PyObject *res;
|
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|
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if (PyErr_WarnPy3k("coerce() not supported in 3.x", 1) < 0)
|
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return NULL;
|
|
|
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if (!PyArg_UnpackTuple(args, "coerce", 2, 2, &v, &w))
|
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return NULL;
|
|
if (PyNumber_Coerce(&v, &w) < 0)
|
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return NULL;
|
|
res = PyTuple_Pack(2, v, w);
|
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Py_DECREF(v);
|
|
Py_DECREF(w);
|
|
return res;
|
|
}
|
|
|
|
PyDoc_STRVAR(coerce_doc,
|
|
"coerce(x, y) -> (x1, y1)\n\
|
|
\n\
|
|
Return a tuple consisting of the two numeric arguments converted to\n\
|
|
a common type, using the same rules as used by arithmetic operations.\n\
|
|
If coercion is not possible, raise TypeError.");
|
|
|
|
static PyObject *
|
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builtin_compile(PyObject *self, PyObject *args, PyObject *kwds)
|
|
{
|
|
char *str;
|
|
char *filename;
|
|
char *startstr;
|
|
int mode = -1;
|
|
int dont_inherit = 0;
|
|
int supplied_flags = 0;
|
|
int is_ast;
|
|
PyCompilerFlags cf;
|
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PyObject *result = NULL, *cmd, *tmp = NULL;
|
|
Py_ssize_t length;
|
|
static char *kwlist[] = {"source", "filename", "mode", "flags",
|
|
"dont_inherit", NULL};
|
|
int start[] = {Py_file_input, Py_eval_input, Py_single_input};
|
|
|
|
if (!PyArg_ParseTupleAndKeywords(args, kwds, "Oss|ii:compile",
|
|
kwlist, &cmd, &filename, &startstr,
|
|
&supplied_flags, &dont_inherit))
|
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return NULL;
|
|
|
|
cf.cf_flags = supplied_flags;
|
|
|
|
if (supplied_flags &
|
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~(PyCF_MASK | PyCF_MASK_OBSOLETE | PyCF_DONT_IMPLY_DEDENT | PyCF_ONLY_AST))
|
|
{
|
|
PyErr_SetString(PyExc_ValueError,
|
|
"compile(): unrecognised flags");
|
|
return NULL;
|
|
}
|
|
/* XXX Warn if (supplied_flags & PyCF_MASK_OBSOLETE) != 0? */
|
|
|
|
if (!dont_inherit) {
|
|
PyEval_MergeCompilerFlags(&cf);
|
|
}
|
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|
|
if (strcmp(startstr, "exec") == 0)
|
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mode = 0;
|
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else if (strcmp(startstr, "eval") == 0)
|
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mode = 1;
|
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else if (strcmp(startstr, "single") == 0)
|
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mode = 2;
|
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else {
|
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PyErr_SetString(PyExc_ValueError,
|
|
"compile() arg 3 must be 'exec', 'eval' or 'single'");
|
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return NULL;
|
|
}
|
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|
|
is_ast = PyAST_Check(cmd);
|
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if (is_ast == -1)
|
|
return NULL;
|
|
if (is_ast) {
|
|
if (supplied_flags & PyCF_ONLY_AST) {
|
|
Py_INCREF(cmd);
|
|
result = cmd;
|
|
}
|
|
else {
|
|
PyArena *arena;
|
|
mod_ty mod;
|
|
|
|
arena = PyArena_New();
|
|
if (arena == NULL)
|
|
return NULL;
|
|
mod = PyAST_obj2mod(cmd, arena, mode);
|
|
if (mod == NULL) {
|
|
PyArena_Free(arena);
|
|
return NULL;
|
|
}
|
|
result = (PyObject*)PyAST_Compile(mod, filename,
|
|
&cf, arena);
|
|
PyArena_Free(arena);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
#ifdef Py_USING_UNICODE
|
|
if (PyUnicode_Check(cmd)) {
|
|
tmp = PyUnicode_AsUTF8String(cmd);
|
|
if (tmp == NULL)
|
|
return NULL;
|
|
cmd = tmp;
|
|
cf.cf_flags |= PyCF_SOURCE_IS_UTF8;
|
|
}
|
|
#endif
|
|
|
|
if (PyObject_AsReadBuffer(cmd, (const void **)&str, &length))
|
|
goto cleanup;
|
|
if ((size_t)length != strlen(str)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"compile() expected string without null bytes");
|
|
goto cleanup;
|
|
}
|
|
result = Py_CompileStringFlags(str, filename, start[mode], &cf);
|
|
cleanup:
|
|
Py_XDECREF(tmp);
|
|
return result;
|
|
}
|
|
|
|
PyDoc_STRVAR(compile_doc,
|
|
"compile(source, filename, mode[, flags[, dont_inherit]]) -> code object\n\
|
|
\n\
|
|
Compile the source string (a Python module, statement or expression)\n\
|
|
into a code object that can be executed by the exec statement or eval().\n\
|
|
The filename will be used for run-time error messages.\n\
|
|
The mode must be 'exec' to compile a module, 'single' to compile a\n\
|
|
single (interactive) statement, or 'eval' to compile an expression.\n\
|
|
The flags argument, if present, controls which future statements influence\n\
|
|
the compilation of the code.\n\
|
|
The dont_inherit argument, if non-zero, stops the compilation inheriting\n\
|
|
the effects of any future statements in effect in the code calling\n\
|
|
compile; if absent or zero these statements do influence the compilation,\n\
|
|
in addition to any features explicitly specified.");
|
|
|
|
static PyObject *
|
|
builtin_dir(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *arg = NULL;
|
|
|
|
if (!PyArg_UnpackTuple(args, "dir", 0, 1, &arg))
|
|
return NULL;
|
|
return PyObject_Dir(arg);
|
|
}
|
|
|
|
PyDoc_STRVAR(dir_doc,
|
|
"dir([object]) -> list of strings\n"
|
|
"\n"
|
|
"If called without an argument, return the names in the current scope.\n"
|
|
"Else, return an alphabetized list of names comprising (some of) the attributes\n"
|
|
"of the given object, and of attributes reachable from it.\n"
|
|
"If the object supplies a method named __dir__, it will be used; otherwise\n"
|
|
"the default dir() logic is used and returns:\n"
|
|
" for a module object: the module's attributes.\n"
|
|
" for a class object: its attributes, and recursively the attributes\n"
|
|
" of its bases.\n"
|
|
" for any other object: its attributes, its class's attributes, and\n"
|
|
" recursively the attributes of its class's base classes.");
|
|
|
|
static PyObject *
|
|
builtin_divmod(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *v, *w;
|
|
|
|
if (!PyArg_UnpackTuple(args, "divmod", 2, 2, &v, &w))
|
|
return NULL;
|
|
return PyNumber_Divmod(v, w);
|
|
}
|
|
|
|
PyDoc_STRVAR(divmod_doc,
|
|
"divmod(x, y) -> (quotient, remainder)\n\
|
|
\n\
|
|
Return the tuple ((x-x%y)/y, x%y). Invariant: div*y + mod == x.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_eval(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *cmd, *result, *tmp = NULL;
|
|
PyObject *globals = Py_None, *locals = Py_None;
|
|
char *str;
|
|
PyCompilerFlags cf;
|
|
|
|
if (!PyArg_UnpackTuple(args, "eval", 1, 3, &cmd, &globals, &locals))
|
|
return NULL;
|
|
if (locals != Py_None && !PyMapping_Check(locals)) {
|
|
PyErr_SetString(PyExc_TypeError, "locals must be a mapping");
|
|
return NULL;
|
|
}
|
|
if (globals != Py_None && !PyDict_Check(globals)) {
|
|
PyErr_SetString(PyExc_TypeError, PyMapping_Check(globals) ?
|
|
"globals must be a real dict; try eval(expr, {}, mapping)"
|
|
: "globals must be a dict");
|
|
return NULL;
|
|
}
|
|
if (globals == Py_None) {
|
|
globals = PyEval_GetGlobals();
|
|
if (locals == Py_None)
|
|
locals = PyEval_GetLocals();
|
|
}
|
|
else if (locals == Py_None)
|
|
locals = globals;
|
|
|
|
if (globals == NULL || locals == NULL) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"eval must be given globals and locals "
|
|
"when called without a frame");
|
|
return NULL;
|
|
}
|
|
|
|
if (PyDict_GetItemString(globals, "__builtins__") == NULL) {
|
|
if (PyDict_SetItemString(globals, "__builtins__",
|
|
PyEval_GetBuiltins()) != 0)
|
|
return NULL;
|
|
}
|
|
|
|
if (PyCode_Check(cmd)) {
|
|
if (PyCode_GetNumFree((PyCodeObject *)cmd) > 0) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"code object passed to eval() may not contain free variables");
|
|
return NULL;
|
|
}
|
|
return PyEval_EvalCode((PyCodeObject *) cmd, globals, locals);
|
|
}
|
|
|
|
if (!PyString_Check(cmd) &&
|
|
!PyUnicode_Check(cmd)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"eval() arg 1 must be a string or code object");
|
|
return NULL;
|
|
}
|
|
cf.cf_flags = 0;
|
|
|
|
#ifdef Py_USING_UNICODE
|
|
if (PyUnicode_Check(cmd)) {
|
|
tmp = PyUnicode_AsUTF8String(cmd);
|
|
if (tmp == NULL)
|
|
return NULL;
|
|
cmd = tmp;
|
|
cf.cf_flags |= PyCF_SOURCE_IS_UTF8;
|
|
}
|
|
#endif
|
|
if (PyString_AsStringAndSize(cmd, &str, NULL)) {
|
|
Py_XDECREF(tmp);
|
|
return NULL;
|
|
}
|
|
while (*str == ' ' || *str == '\t')
|
|
str++;
|
|
|
|
(void)PyEval_MergeCompilerFlags(&cf);
|
|
result = PyRun_StringFlags(str, Py_eval_input, globals, locals, &cf);
|
|
Py_XDECREF(tmp);
|
|
return result;
|
|
}
|
|
|
|
PyDoc_STRVAR(eval_doc,
|
|
"eval(source[, globals[, locals]]) -> value\n\
|
|
\n\
|
|
Evaluate the source in the context of globals and locals.\n\
|
|
The source may be a string representing a Python expression\n\
|
|
or a code object as returned by compile().\n\
|
|
The globals must be a dictionary and locals can be any mapping,\n\
|
|
defaulting to the current globals and locals.\n\
|
|
If only globals is given, locals defaults to it.\n");
|
|
|
|
|
|
static PyObject *
|
|
builtin_execfile(PyObject *self, PyObject *args)
|
|
{
|
|
char *filename;
|
|
PyObject *globals = Py_None, *locals = Py_None;
|
|
PyObject *res;
|
|
FILE* fp = NULL;
|
|
PyCompilerFlags cf;
|
|
int exists;
|
|
|
|
if (PyErr_WarnPy3k("execfile() not supported in 3.x; use exec()",
|
|
1) < 0)
|
|
return NULL;
|
|
|
|
if (!PyArg_ParseTuple(args, "s|O!O:execfile",
|
|
&filename,
|
|
&PyDict_Type, &globals,
|
|
&locals))
|
|
return NULL;
|
|
if (locals != Py_None && !PyMapping_Check(locals)) {
|
|
PyErr_SetString(PyExc_TypeError, "locals must be a mapping");
|
|
return NULL;
|
|
}
|
|
if (globals == Py_None) {
|
|
globals = PyEval_GetGlobals();
|
|
if (locals == Py_None)
|
|
locals = PyEval_GetLocals();
|
|
}
|
|
else if (locals == Py_None)
|
|
locals = globals;
|
|
if (PyDict_GetItemString(globals, "__builtins__") == NULL) {
|
|
if (PyDict_SetItemString(globals, "__builtins__",
|
|
PyEval_GetBuiltins()) != 0)
|
|
return NULL;
|
|
}
|
|
|
|
exists = 0;
|
|
/* Test for existence or directory. */
|
|
#if defined(PLAN9)
|
|
{
|
|
Dir *d;
|
|
|
|
if ((d = dirstat(filename))!=nil) {
|
|
if(d->mode & DMDIR)
|
|
werrstr("is a directory");
|
|
else
|
|
exists = 1;
|
|
free(d);
|
|
}
|
|
}
|
|
#elif defined(RISCOS)
|
|
if (object_exists(filename)) {
|
|
if (isdir(filename))
|
|
errno = EISDIR;
|
|
else
|
|
exists = 1;
|
|
}
|
|
#else /* standard Posix */
|
|
{
|
|
struct stat s;
|
|
if (stat(filename, &s) == 0) {
|
|
if (S_ISDIR(s.st_mode))
|
|
# if defined(PYOS_OS2) && defined(PYCC_VACPP)
|
|
errno = EOS2ERR;
|
|
# else
|
|
errno = EISDIR;
|
|
# endif
|
|
else
|
|
exists = 1;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (exists) {
|
|
Py_BEGIN_ALLOW_THREADS
|
|
fp = fopen(filename, "r" PY_STDIOTEXTMODE);
|
|
Py_END_ALLOW_THREADS
|
|
|
|
if (fp == NULL) {
|
|
exists = 0;
|
|
}
|
|
}
|
|
|
|
if (!exists) {
|
|
PyErr_SetFromErrnoWithFilename(PyExc_IOError, filename);
|
|
return NULL;
|
|
}
|
|
cf.cf_flags = 0;
|
|
if (PyEval_MergeCompilerFlags(&cf))
|
|
res = PyRun_FileExFlags(fp, filename, Py_file_input, globals,
|
|
locals, 1, &cf);
|
|
else
|
|
res = PyRun_FileEx(fp, filename, Py_file_input, globals,
|
|
locals, 1);
|
|
return res;
|
|
}
|
|
|
|
PyDoc_STRVAR(execfile_doc,
|
|
"execfile(filename[, globals[, locals]])\n\
|
|
\n\
|
|
Read and execute a Python script from a file.\n\
|
|
The globals and locals are dictionaries, defaulting to the current\n\
|
|
globals and locals. If only globals is given, locals defaults to it.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_getattr(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *v, *result, *dflt = NULL;
|
|
PyObject *name;
|
|
|
|
if (!PyArg_UnpackTuple(args, "getattr", 2, 3, &v, &name, &dflt))
|
|
return NULL;
|
|
#ifdef Py_USING_UNICODE
|
|
if (PyUnicode_Check(name)) {
|
|
name = _PyUnicode_AsDefaultEncodedString(name, NULL);
|
|
if (name == NULL)
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
if (!PyString_Check(name)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"getattr(): attribute name must be string");
|
|
return NULL;
|
|
}
|
|
result = PyObject_GetAttr(v, name);
|
|
if (result == NULL && dflt != NULL &&
|
|
PyErr_ExceptionMatches(PyExc_AttributeError))
|
|
{
|
|
PyErr_Clear();
|
|
Py_INCREF(dflt);
|
|
result = dflt;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
PyDoc_STRVAR(getattr_doc,
|
|
"getattr(object, name[, default]) -> value\n\
|
|
\n\
|
|
Get a named attribute from an object; getattr(x, 'y') is equivalent to x.y.\n\
|
|
When a default argument is given, it is returned when the attribute doesn't\n\
|
|
exist; without it, an exception is raised in that case.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_globals(PyObject *self)
|
|
{
|
|
PyObject *d;
|
|
|
|
d = PyEval_GetGlobals();
|
|
Py_XINCREF(d);
|
|
return d;
|
|
}
|
|
|
|
PyDoc_STRVAR(globals_doc,
|
|
"globals() -> dictionary\n\
|
|
\n\
|
|
Return the dictionary containing the current scope's global variables.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_hasattr(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *v;
|
|
PyObject *name;
|
|
|
|
if (!PyArg_UnpackTuple(args, "hasattr", 2, 2, &v, &name))
|
|
return NULL;
|
|
#ifdef Py_USING_UNICODE
|
|
if (PyUnicode_Check(name)) {
|
|
name = _PyUnicode_AsDefaultEncodedString(name, NULL);
|
|
if (name == NULL)
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
if (!PyString_Check(name)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"hasattr(): attribute name must be string");
|
|
return NULL;
|
|
}
|
|
v = PyObject_GetAttr(v, name);
|
|
if (v == NULL) {
|
|
if (!PyErr_ExceptionMatches(PyExc_Exception))
|
|
return NULL;
|
|
else {
|
|
PyErr_Clear();
|
|
Py_INCREF(Py_False);
|
|
return Py_False;
|
|
}
|
|
}
|
|
Py_DECREF(v);
|
|
Py_INCREF(Py_True);
|
|
return Py_True;
|
|
}
|
|
|
|
PyDoc_STRVAR(hasattr_doc,
|
|
"hasattr(object, name) -> bool\n\
|
|
\n\
|
|
Return whether the object has an attribute with the given name.\n\
|
|
(This is done by calling getattr(object, name) and catching exceptions.)");
|
|
|
|
|
|
static PyObject *
|
|
builtin_id(PyObject *self, PyObject *v)
|
|
{
|
|
return PyLong_FromVoidPtr(v);
|
|
}
|
|
|
|
PyDoc_STRVAR(id_doc,
|
|
"id(object) -> integer\n\
|
|
\n\
|
|
Return the identity of an object. This is guaranteed to be unique among\n\
|
|
simultaneously existing objects. (Hint: it's the object's memory address.)");
|
|
|
|
|
|
static PyObject *
|
|
builtin_map(PyObject *self, PyObject *args)
|
|
{
|
|
typedef struct {
|
|
PyObject *it; /* the iterator object */
|
|
int saw_StopIteration; /* bool: did the iterator end? */
|
|
} sequence;
|
|
|
|
PyObject *func, *result;
|
|
sequence *seqs = NULL, *sqp;
|
|
Py_ssize_t n, len;
|
|
register int i, j;
|
|
|
|
n = PyTuple_Size(args);
|
|
if (n < 2) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"map() requires at least two args");
|
|
return NULL;
|
|
}
|
|
|
|
func = PyTuple_GetItem(args, 0);
|
|
n--;
|
|
|
|
if (func == Py_None) {
|
|
if (PyErr_WarnPy3k("map(None, ...) not supported in 3.x; "
|
|
"use list(...)", 1) < 0)
|
|
return NULL;
|
|
if (n == 1) {
|
|
/* map(None, S) is the same as list(S). */
|
|
return PySequence_List(PyTuple_GetItem(args, 1));
|
|
}
|
|
}
|
|
|
|
/* Get space for sequence descriptors. Must NULL out the iterator
|
|
* pointers so that jumping to Fail_2 later doesn't see trash.
|
|
*/
|
|
if ((seqs = PyMem_NEW(sequence, n)) == NULL) {
|
|
PyErr_NoMemory();
|
|
return NULL;
|
|
}
|
|
for (i = 0; i < n; ++i) {
|
|
seqs[i].it = (PyObject*)NULL;
|
|
seqs[i].saw_StopIteration = 0;
|
|
}
|
|
|
|
/* Do a first pass to obtain iterators for the arguments, and set len
|
|
* to the largest of their lengths.
|
|
*/
|
|
len = 0;
|
|
for (i = 0, sqp = seqs; i < n; ++i, ++sqp) {
|
|
PyObject *curseq;
|
|
Py_ssize_t curlen;
|
|
|
|
/* Get iterator. */
|
|
curseq = PyTuple_GetItem(args, i+1);
|
|
sqp->it = PyObject_GetIter(curseq);
|
|
if (sqp->it == NULL) {
|
|
static char errmsg[] =
|
|
"argument %d to map() must support iteration";
|
|
char errbuf[sizeof(errmsg) + 25];
|
|
PyOS_snprintf(errbuf, sizeof(errbuf), errmsg, i+2);
|
|
PyErr_SetString(PyExc_TypeError, errbuf);
|
|
goto Fail_2;
|
|
}
|
|
|
|
/* Update len. */
|
|
curlen = _PyObject_LengthHint(curseq, 8);
|
|
if (curlen > len)
|
|
len = curlen;
|
|
}
|
|
|
|
/* Get space for the result list. */
|
|
if ((result = (PyObject *) PyList_New(len)) == NULL)
|
|
goto Fail_2;
|
|
|
|
/* Iterate over the sequences until all have stopped. */
|
|
for (i = 0; ; ++i) {
|
|
PyObject *alist, *item=NULL, *value;
|
|
int numactive = 0;
|
|
|
|
if (func == Py_None && n == 1)
|
|
alist = NULL;
|
|
else if ((alist = PyTuple_New(n)) == NULL)
|
|
goto Fail_1;
|
|
|
|
for (j = 0, sqp = seqs; j < n; ++j, ++sqp) {
|
|
if (sqp->saw_StopIteration) {
|
|
Py_INCREF(Py_None);
|
|
item = Py_None;
|
|
}
|
|
else {
|
|
item = PyIter_Next(sqp->it);
|
|
if (item)
|
|
++numactive;
|
|
else {
|
|
if (PyErr_Occurred()) {
|
|
Py_XDECREF(alist);
|
|
goto Fail_1;
|
|
}
|
|
Py_INCREF(Py_None);
|
|
item = Py_None;
|
|
sqp->saw_StopIteration = 1;
|
|
}
|
|
}
|
|
if (alist)
|
|
PyTuple_SET_ITEM(alist, j, item);
|
|
else
|
|
break;
|
|
}
|
|
|
|
if (!alist)
|
|
alist = item;
|
|
|
|
if (numactive == 0) {
|
|
Py_DECREF(alist);
|
|
break;
|
|
}
|
|
|
|
if (func == Py_None)
|
|
value = alist;
|
|
else {
|
|
value = PyEval_CallObject(func, alist);
|
|
Py_DECREF(alist);
|
|
if (value == NULL)
|
|
goto Fail_1;
|
|
}
|
|
if (i >= len) {
|
|
int status = PyList_Append(result, value);
|
|
Py_DECREF(value);
|
|
if (status < 0)
|
|
goto Fail_1;
|
|
}
|
|
else if (PyList_SetItem(result, i, value) < 0)
|
|
goto Fail_1;
|
|
}
|
|
|
|
if (i < len && PyList_SetSlice(result, i, len, NULL) < 0)
|
|
goto Fail_1;
|
|
|
|
goto Succeed;
|
|
|
|
Fail_1:
|
|
Py_DECREF(result);
|
|
Fail_2:
|
|
result = NULL;
|
|
Succeed:
|
|
assert(seqs);
|
|
for (i = 0; i < n; ++i)
|
|
Py_XDECREF(seqs[i].it);
|
|
PyMem_DEL(seqs);
|
|
return result;
|
|
}
|
|
|
|
PyDoc_STRVAR(map_doc,
|
|
"map(function, sequence[, sequence, ...]) -> list\n\
|
|
\n\
|
|
Return a list of the results of applying the function to the items of\n\
|
|
the argument sequence(s). If more than one sequence is given, the\n\
|
|
function is called with an argument list consisting of the corresponding\n\
|
|
item of each sequence, substituting None for missing values when not all\n\
|
|
sequences have the same length. If the function is None, return a list of\n\
|
|
the items of the sequence (or a list of tuples if more than one sequence).");
|
|
|
|
|
|
static PyObject *
|
|
builtin_next(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *it, *res;
|
|
PyObject *def = NULL;
|
|
|
|
if (!PyArg_UnpackTuple(args, "next", 1, 2, &it, &def))
|
|
return NULL;
|
|
if (!PyIter_Check(it)) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"%.200s object is not an iterator",
|
|
it->ob_type->tp_name);
|
|
return NULL;
|
|
}
|
|
|
|
res = (*it->ob_type->tp_iternext)(it);
|
|
if (res != NULL) {
|
|
return res;
|
|
} else if (def != NULL) {
|
|
if (PyErr_Occurred()) {
|
|
if (!PyErr_ExceptionMatches(PyExc_StopIteration))
|
|
return NULL;
|
|
PyErr_Clear();
|
|
}
|
|
Py_INCREF(def);
|
|
return def;
|
|
} else if (PyErr_Occurred()) {
|
|
return NULL;
|
|
} else {
|
|
PyErr_SetNone(PyExc_StopIteration);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
PyDoc_STRVAR(next_doc,
|
|
"next(iterator[, default])\n\
|
|
\n\
|
|
Return the next item from the iterator. If default is given and the iterator\n\
|
|
is exhausted, it is returned instead of raising StopIteration.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_setattr(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *v;
|
|
PyObject *name;
|
|
PyObject *value;
|
|
|
|
if (!PyArg_UnpackTuple(args, "setattr", 3, 3, &v, &name, &value))
|
|
return NULL;
|
|
if (PyObject_SetAttr(v, name, value) != 0)
|
|
return NULL;
|
|
Py_INCREF(Py_None);
|
|
return Py_None;
|
|
}
|
|
|
|
PyDoc_STRVAR(setattr_doc,
|
|
"setattr(object, name, value)\n\
|
|
\n\
|
|
Set a named attribute on an object; setattr(x, 'y', v) is equivalent to\n\
|
|
``x.y = v''.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_delattr(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *v;
|
|
PyObject *name;
|
|
|
|
if (!PyArg_UnpackTuple(args, "delattr", 2, 2, &v, &name))
|
|
return NULL;
|
|
if (PyObject_SetAttr(v, name, (PyObject *)NULL) != 0)
|
|
return NULL;
|
|
Py_INCREF(Py_None);
|
|
return Py_None;
|
|
}
|
|
|
|
PyDoc_STRVAR(delattr_doc,
|
|
"delattr(object, name)\n\
|
|
\n\
|
|
Delete a named attribute on an object; delattr(x, 'y') is equivalent to\n\
|
|
``del x.y''.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_hash(PyObject *self, PyObject *v)
|
|
{
|
|
long x;
|
|
|
|
x = PyObject_Hash(v);
|
|
if (x == -1)
|
|
return NULL;
|
|
return PyInt_FromLong(x);
|
|
}
|
|
|
|
PyDoc_STRVAR(hash_doc,
|
|
"hash(object) -> integer\n\
|
|
\n\
|
|
Return a hash value for the object. Two objects with the same value have\n\
|
|
the same hash value. The reverse is not necessarily true, but likely.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_hex(PyObject *self, PyObject *v)
|
|
{
|
|
PyNumberMethods *nb;
|
|
PyObject *res;
|
|
|
|
if ((nb = v->ob_type->tp_as_number) == NULL ||
|
|
nb->nb_hex == NULL) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"hex() argument can't be converted to hex");
|
|
return NULL;
|
|
}
|
|
res = (*nb->nb_hex)(v);
|
|
if (res && !PyString_Check(res)) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"__hex__ returned non-string (type %.200s)",
|
|
res->ob_type->tp_name);
|
|
Py_DECREF(res);
|
|
return NULL;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
PyDoc_STRVAR(hex_doc,
|
|
"hex(number) -> string\n\
|
|
\n\
|
|
Return the hexadecimal representation of an integer or long integer.");
|
|
|
|
|
|
static PyObject *builtin_raw_input(PyObject *, PyObject *);
|
|
|
|
static PyObject *
|
|
builtin_input(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *line;
|
|
char *str;
|
|
PyObject *res;
|
|
PyObject *globals, *locals;
|
|
PyCompilerFlags cf;
|
|
|
|
line = builtin_raw_input(self, args);
|
|
if (line == NULL)
|
|
return line;
|
|
if (!PyArg_Parse(line, "s;embedded '\\0' in input line", &str))
|
|
return NULL;
|
|
while (*str == ' ' || *str == '\t')
|
|
str++;
|
|
globals = PyEval_GetGlobals();
|
|
locals = PyEval_GetLocals();
|
|
if (PyDict_GetItemString(globals, "__builtins__") == NULL) {
|
|
if (PyDict_SetItemString(globals, "__builtins__",
|
|
PyEval_GetBuiltins()) != 0)
|
|
return NULL;
|
|
}
|
|
cf.cf_flags = 0;
|
|
PyEval_MergeCompilerFlags(&cf);
|
|
res = PyRun_StringFlags(str, Py_eval_input, globals, locals, &cf);
|
|
Py_DECREF(line);
|
|
return res;
|
|
}
|
|
|
|
PyDoc_STRVAR(input_doc,
|
|
"input([prompt]) -> value\n\
|
|
\n\
|
|
Equivalent to eval(raw_input(prompt)).");
|
|
|
|
|
|
static PyObject *
|
|
builtin_intern(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *s;
|
|
if (!PyArg_ParseTuple(args, "S:intern", &s))
|
|
return NULL;
|
|
if (!PyString_CheckExact(s)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"can't intern subclass of string");
|
|
return NULL;
|
|
}
|
|
Py_INCREF(s);
|
|
PyString_InternInPlace(&s);
|
|
return s;
|
|
}
|
|
|
|
PyDoc_STRVAR(intern_doc,
|
|
"intern(string) -> string\n\
|
|
\n\
|
|
``Intern'' the given string. This enters the string in the (global)\n\
|
|
table of interned strings whose purpose is to speed up dictionary lookups.\n\
|
|
Return the string itself or the previously interned string object with the\n\
|
|
same value.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_iter(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *v, *w = NULL;
|
|
|
|
if (!PyArg_UnpackTuple(args, "iter", 1, 2, &v, &w))
|
|
return NULL;
|
|
if (w == NULL)
|
|
return PyObject_GetIter(v);
|
|
if (!PyCallable_Check(v)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"iter(v, w): v must be callable");
|
|
return NULL;
|
|
}
|
|
return PyCallIter_New(v, w);
|
|
}
|
|
|
|
PyDoc_STRVAR(iter_doc,
|
|
"iter(collection) -> iterator\n\
|
|
iter(callable, sentinel) -> iterator\n\
|
|
\n\
|
|
Get an iterator from an object. In the first form, the argument must\n\
|
|
supply its own iterator, or be a sequence.\n\
|
|
In the second form, the callable is called until it returns the sentinel.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_len(PyObject *self, PyObject *v)
|
|
{
|
|
Py_ssize_t res;
|
|
|
|
res = PyObject_Size(v);
|
|
if (res < 0 && PyErr_Occurred())
|
|
return NULL;
|
|
return PyInt_FromSsize_t(res);
|
|
}
|
|
|
|
PyDoc_STRVAR(len_doc,
|
|
"len(object) -> integer\n\
|
|
\n\
|
|
Return the number of items of a sequence or collection.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_locals(PyObject *self)
|
|
{
|
|
PyObject *d;
|
|
|
|
d = PyEval_GetLocals();
|
|
Py_XINCREF(d);
|
|
return d;
|
|
}
|
|
|
|
PyDoc_STRVAR(locals_doc,
|
|
"locals() -> dictionary\n\
|
|
\n\
|
|
Update and return a dictionary containing the current scope's local variables.");
|
|
|
|
|
|
static PyObject *
|
|
min_max(PyObject *args, PyObject *kwds, int op)
|
|
{
|
|
PyObject *v, *it, *item, *val, *maxitem, *maxval, *keyfunc=NULL;
|
|
const char *name = op == Py_LT ? "min" : "max";
|
|
|
|
if (PyTuple_Size(args) > 1)
|
|
v = args;
|
|
else if (!PyArg_UnpackTuple(args, (char *)name, 1, 1, &v))
|
|
return NULL;
|
|
|
|
if (kwds != NULL && PyDict_Check(kwds) && PyDict_Size(kwds)) {
|
|
keyfunc = PyDict_GetItemString(kwds, "key");
|
|
if (PyDict_Size(kwds)!=1 || keyfunc == NULL) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"%s() got an unexpected keyword argument", name);
|
|
return NULL;
|
|
}
|
|
Py_INCREF(keyfunc);
|
|
}
|
|
|
|
it = PyObject_GetIter(v);
|
|
if (it == NULL) {
|
|
Py_XDECREF(keyfunc);
|
|
return NULL;
|
|
}
|
|
|
|
maxitem = NULL; /* the result */
|
|
maxval = NULL; /* the value associated with the result */
|
|
while (( item = PyIter_Next(it) )) {
|
|
/* get the value from the key function */
|
|
if (keyfunc != NULL) {
|
|
val = PyObject_CallFunctionObjArgs(keyfunc, item, NULL);
|
|
if (val == NULL)
|
|
goto Fail_it_item;
|
|
}
|
|
/* no key function; the value is the item */
|
|
else {
|
|
val = item;
|
|
Py_INCREF(val);
|
|
}
|
|
|
|
/* maximum value and item are unset; set them */
|
|
if (maxval == NULL) {
|
|
maxitem = item;
|
|
maxval = val;
|
|
}
|
|
/* maximum value and item are set; update them as necessary */
|
|
else {
|
|
int cmp = PyObject_RichCompareBool(val, maxval, op);
|
|
if (cmp < 0)
|
|
goto Fail_it_item_and_val;
|
|
else if (cmp > 0) {
|
|
Py_DECREF(maxval);
|
|
Py_DECREF(maxitem);
|
|
maxval = val;
|
|
maxitem = item;
|
|
}
|
|
else {
|
|
Py_DECREF(item);
|
|
Py_DECREF(val);
|
|
}
|
|
}
|
|
}
|
|
if (PyErr_Occurred())
|
|
goto Fail_it;
|
|
if (maxval == NULL) {
|
|
PyErr_Format(PyExc_ValueError,
|
|
"%s() arg is an empty sequence", name);
|
|
assert(maxitem == NULL);
|
|
}
|
|
else
|
|
Py_DECREF(maxval);
|
|
Py_DECREF(it);
|
|
Py_XDECREF(keyfunc);
|
|
return maxitem;
|
|
|
|
Fail_it_item_and_val:
|
|
Py_DECREF(val);
|
|
Fail_it_item:
|
|
Py_DECREF(item);
|
|
Fail_it:
|
|
Py_XDECREF(maxval);
|
|
Py_XDECREF(maxitem);
|
|
Py_DECREF(it);
|
|
Py_XDECREF(keyfunc);
|
|
return NULL;
|
|
}
|
|
|
|
static PyObject *
|
|
builtin_min(PyObject *self, PyObject *args, PyObject *kwds)
|
|
{
|
|
return min_max(args, kwds, Py_LT);
|
|
}
|
|
|
|
PyDoc_STRVAR(min_doc,
|
|
"min(iterable[, key=func]) -> value\n\
|
|
min(a, b, c, ...[, key=func]) -> value\n\
|
|
\n\
|
|
With a single iterable argument, return its smallest item.\n\
|
|
With two or more arguments, return the smallest argument.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_max(PyObject *self, PyObject *args, PyObject *kwds)
|
|
{
|
|
return min_max(args, kwds, Py_GT);
|
|
}
|
|
|
|
PyDoc_STRVAR(max_doc,
|
|
"max(iterable[, key=func]) -> value\n\
|
|
max(a, b, c, ...[, key=func]) -> value\n\
|
|
\n\
|
|
With a single iterable argument, return its largest item.\n\
|
|
With two or more arguments, return the largest argument.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_oct(PyObject *self, PyObject *v)
|
|
{
|
|
PyNumberMethods *nb;
|
|
PyObject *res;
|
|
|
|
if (v == NULL || (nb = v->ob_type->tp_as_number) == NULL ||
|
|
nb->nb_oct == NULL) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"oct() argument can't be converted to oct");
|
|
return NULL;
|
|
}
|
|
res = (*nb->nb_oct)(v);
|
|
if (res && !PyString_Check(res)) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"__oct__ returned non-string (type %.200s)",
|
|
res->ob_type->tp_name);
|
|
Py_DECREF(res);
|
|
return NULL;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
PyDoc_STRVAR(oct_doc,
|
|
"oct(number) -> string\n\
|
|
\n\
|
|
Return the octal representation of an integer or long integer.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_open(PyObject *self, PyObject *args, PyObject *kwds)
|
|
{
|
|
return PyObject_Call((PyObject*)&PyFile_Type, args, kwds);
|
|
}
|
|
|
|
PyDoc_STRVAR(open_doc,
|
|
"open(name[, mode[, buffering]]) -> file object\n\
|
|
\n\
|
|
Open a file using the file() type, returns a file object. This is the\n\
|
|
preferred way to open a file. See file.__doc__ for further information.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_ord(PyObject *self, PyObject* obj)
|
|
{
|
|
long ord;
|
|
Py_ssize_t size;
|
|
|
|
if (PyString_Check(obj)) {
|
|
size = PyString_GET_SIZE(obj);
|
|
if (size == 1) {
|
|
ord = (long)((unsigned char)*PyString_AS_STRING(obj));
|
|
return PyInt_FromLong(ord);
|
|
}
|
|
} else if (PyByteArray_Check(obj)) {
|
|
size = PyByteArray_GET_SIZE(obj);
|
|
if (size == 1) {
|
|
ord = (long)((unsigned char)*PyByteArray_AS_STRING(obj));
|
|
return PyInt_FromLong(ord);
|
|
}
|
|
|
|
#ifdef Py_USING_UNICODE
|
|
} else if (PyUnicode_Check(obj)) {
|
|
size = PyUnicode_GET_SIZE(obj);
|
|
if (size == 1) {
|
|
ord = (long)*PyUnicode_AS_UNICODE(obj);
|
|
return PyInt_FromLong(ord);
|
|
}
|
|
#endif
|
|
} else {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"ord() expected string of length 1, but " \
|
|
"%.200s found", obj->ob_type->tp_name);
|
|
return NULL;
|
|
}
|
|
|
|
PyErr_Format(PyExc_TypeError,
|
|
"ord() expected a character, "
|
|
"but string of length %zd found",
|
|
size);
|
|
return NULL;
|
|
}
|
|
|
|
PyDoc_STRVAR(ord_doc,
|
|
"ord(c) -> integer\n\
|
|
\n\
|
|
Return the integer ordinal of a one-character string.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_pow(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *v, *w, *z = Py_None;
|
|
|
|
if (!PyArg_UnpackTuple(args, "pow", 2, 3, &v, &w, &z))
|
|
return NULL;
|
|
return PyNumber_Power(v, w, z);
|
|
}
|
|
|
|
PyDoc_STRVAR(pow_doc,
|
|
"pow(x, y[, z]) -> number\n\
|
|
\n\
|
|
With two arguments, equivalent to x**y. With three arguments,\n\
|
|
equivalent to (x**y) % z, but may be more efficient (e.g. for longs).");
|
|
|
|
|
|
static PyObject *
|
|
builtin_print(PyObject *self, PyObject *args, PyObject *kwds)
|
|
{
|
|
static char *kwlist[] = {"sep", "end", "file", 0};
|
|
static PyObject *dummy_args = NULL;
|
|
static PyObject *unicode_newline = NULL, *unicode_space = NULL;
|
|
static PyObject *str_newline = NULL, *str_space = NULL;
|
|
PyObject *newline, *space;
|
|
PyObject *sep = NULL, *end = NULL, *file = NULL;
|
|
int i, err, use_unicode = 0;
|
|
|
|
if (dummy_args == NULL) {
|
|
if (!(dummy_args = PyTuple_New(0)))
|
|
return NULL;
|
|
}
|
|
if (str_newline == NULL) {
|
|
str_newline = PyString_FromString("\n");
|
|
if (str_newline == NULL)
|
|
return NULL;
|
|
str_space = PyString_FromString(" ");
|
|
if (str_space == NULL) {
|
|
Py_CLEAR(str_newline);
|
|
return NULL;
|
|
}
|
|
#ifdef Py_USING_UNICODE
|
|
unicode_newline = PyUnicode_FromString("\n");
|
|
if (unicode_newline == NULL) {
|
|
Py_CLEAR(str_newline);
|
|
Py_CLEAR(str_space);
|
|
return NULL;
|
|
}
|
|
unicode_space = PyUnicode_FromString(" ");
|
|
if (unicode_space == NULL) {
|
|
Py_CLEAR(str_newline);
|
|
Py_CLEAR(str_space);
|
|
Py_CLEAR(unicode_space);
|
|
return NULL;
|
|
}
|
|
#endif
|
|
}
|
|
if (!PyArg_ParseTupleAndKeywords(dummy_args, kwds, "|OOO:print",
|
|
kwlist, &sep, &end, &file))
|
|
return NULL;
|
|
if (file == NULL || file == Py_None) {
|
|
file = PySys_GetObject("stdout");
|
|
/* sys.stdout may be None when FILE* stdout isn't connected */
|
|
if (file == Py_None)
|
|
Py_RETURN_NONE;
|
|
}
|
|
if (sep == Py_None) {
|
|
sep = NULL;
|
|
}
|
|
else if (sep) {
|
|
if (PyUnicode_Check(sep)) {
|
|
use_unicode = 1;
|
|
}
|
|
else if (!PyString_Check(sep)) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"sep must be None, str or unicode, not %.200s",
|
|
sep->ob_type->tp_name);
|
|
return NULL;
|
|
}
|
|
}
|
|
if (end == Py_None)
|
|
end = NULL;
|
|
else if (end) {
|
|
if (PyUnicode_Check(end)) {
|
|
use_unicode = 1;
|
|
}
|
|
else if (!PyString_Check(end)) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"end must be None, str or unicode, not %.200s",
|
|
end->ob_type->tp_name);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
if (!use_unicode) {
|
|
for (i = 0; i < PyTuple_Size(args); i++) {
|
|
if (PyUnicode_Check(PyTuple_GET_ITEM(args, i))) {
|
|
use_unicode = 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (use_unicode) {
|
|
newline = unicode_newline;
|
|
space = unicode_space;
|
|
}
|
|
else {
|
|
newline = str_newline;
|
|
space = str_space;
|
|
}
|
|
|
|
for (i = 0; i < PyTuple_Size(args); i++) {
|
|
if (i > 0) {
|
|
if (sep == NULL)
|
|
err = PyFile_WriteObject(space, file,
|
|
Py_PRINT_RAW);
|
|
else
|
|
err = PyFile_WriteObject(sep, file,
|
|
Py_PRINT_RAW);
|
|
if (err)
|
|
return NULL;
|
|
}
|
|
err = PyFile_WriteObject(PyTuple_GetItem(args, i), file,
|
|
Py_PRINT_RAW);
|
|
if (err)
|
|
return NULL;
|
|
}
|
|
|
|
if (end == NULL)
|
|
err = PyFile_WriteObject(newline, file, Py_PRINT_RAW);
|
|
else
|
|
err = PyFile_WriteObject(end, file, Py_PRINT_RAW);
|
|
if (err)
|
|
return NULL;
|
|
|
|
Py_RETURN_NONE;
|
|
}
|
|
|
|
PyDoc_STRVAR(print_doc,
|
|
"print(value, ..., sep=' ', end='\\n', file=sys.stdout)\n\
|
|
\n\
|
|
Prints the values to a stream, or to sys.stdout by default.\n\
|
|
Optional keyword arguments:\n\
|
|
file: a file-like object (stream); defaults to the current sys.stdout.\n\
|
|
sep: string inserted between values, default a space.\n\
|
|
end: string appended after the last value, default a newline.");
|
|
|
|
|
|
/* Return number of items in range (lo, hi, step), when arguments are
|
|
* PyInt or PyLong objects. step > 0 required. Return a value < 0 if
|
|
* & only if the true value is too large to fit in a signed long.
|
|
* Arguments MUST return 1 with either PyInt_Check() or
|
|
* PyLong_Check(). Return -1 when there is an error.
|
|
*/
|
|
static long
|
|
get_len_of_range_longs(PyObject *lo, PyObject *hi, PyObject *step)
|
|
{
|
|
/* -------------------------------------------------------------
|
|
Algorithm is equal to that of get_len_of_range(), but it operates
|
|
on PyObjects (which are assumed to be PyLong or PyInt objects).
|
|
---------------------------------------------------------------*/
|
|
long n;
|
|
PyObject *diff = NULL;
|
|
PyObject *one = NULL;
|
|
PyObject *tmp1 = NULL, *tmp2 = NULL, *tmp3 = NULL;
|
|
/* holds sub-expression evaluations */
|
|
|
|
/* if (lo >= hi), return length of 0. */
|
|
if (PyObject_Compare(lo, hi) >= 0)
|
|
return 0;
|
|
|
|
if ((one = PyLong_FromLong(1L)) == NULL)
|
|
goto Fail;
|
|
|
|
if ((tmp1 = PyNumber_Subtract(hi, lo)) == NULL)
|
|
goto Fail;
|
|
|
|
if ((diff = PyNumber_Subtract(tmp1, one)) == NULL)
|
|
goto Fail;
|
|
|
|
if ((tmp2 = PyNumber_FloorDivide(diff, step)) == NULL)
|
|
goto Fail;
|
|
|
|
if ((tmp3 = PyNumber_Add(tmp2, one)) == NULL)
|
|
goto Fail;
|
|
|
|
n = PyLong_AsLong(tmp3);
|
|
if (PyErr_Occurred()) { /* Check for Overflow */
|
|
PyErr_Clear();
|
|
goto Fail;
|
|
}
|
|
|
|
Py_DECREF(tmp3);
|
|
Py_DECREF(tmp2);
|
|
Py_DECREF(diff);
|
|
Py_DECREF(tmp1);
|
|
Py_DECREF(one);
|
|
return n;
|
|
|
|
Fail:
|
|
Py_XDECREF(tmp3);
|
|
Py_XDECREF(tmp2);
|
|
Py_XDECREF(diff);
|
|
Py_XDECREF(tmp1);
|
|
Py_XDECREF(one);
|
|
return -1;
|
|
}
|
|
|
|
/* Helper function for handle_range_longs. If arg is int or long
|
|
object, returns it with incremented reference count. If arg is
|
|
float, raises type error. As a last resort, creates a new int by
|
|
calling arg type's nb_int method if it is defined. Returns NULL
|
|
and sets exception on error.
|
|
|
|
Returns a new reference to an int object. */
|
|
static PyObject *
|
|
get_range_long_argument(PyObject *arg, const char *name)
|
|
{
|
|
PyObject *v;
|
|
PyNumberMethods *nb;
|
|
if (PyInt_Check(arg) || PyLong_Check(arg)) {
|
|
Py_INCREF(arg);
|
|
return arg;
|
|
}
|
|
if (PyFloat_Check(arg) ||
|
|
(nb = Py_TYPE(arg)->tp_as_number) == NULL ||
|
|
nb->nb_int == NULL) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"range() integer %s argument expected, got %s.",
|
|
name, arg->ob_type->tp_name);
|
|
return NULL;
|
|
}
|
|
v = nb->nb_int(arg);
|
|
if (v == NULL)
|
|
return NULL;
|
|
if (PyInt_Check(v) || PyLong_Check(v))
|
|
return v;
|
|
Py_DECREF(v);
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"__int__ should return int object");
|
|
return NULL;
|
|
}
|
|
|
|
/* An extension of builtin_range() that handles the case when PyLong
|
|
* arguments are given. */
|
|
static PyObject *
|
|
handle_range_longs(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *ilow = NULL;
|
|
PyObject *ihigh = NULL;
|
|
PyObject *istep = NULL;
|
|
|
|
PyObject *low = NULL;
|
|
PyObject *high = NULL;
|
|
PyObject *step = NULL;
|
|
|
|
PyObject *curnum = NULL;
|
|
PyObject *v = NULL;
|
|
long bign;
|
|
Py_ssize_t i, n;
|
|
int cmp_result;
|
|
|
|
PyObject *zero = PyLong_FromLong(0);
|
|
|
|
if (zero == NULL)
|
|
return NULL;
|
|
|
|
if (!PyArg_UnpackTuple(args, "range", 1, 3, &ilow, &ihigh, &istep)) {
|
|
Py_DECREF(zero);
|
|
return NULL;
|
|
}
|
|
|
|
/* Figure out which way we were called, supply defaults, and be
|
|
* sure to incref everything so that the decrefs at the end
|
|
* are correct. NB: ilow, ihigh and istep are borrowed references.
|
|
*/
|
|
assert(ilow != NULL);
|
|
if (ihigh == NULL) {
|
|
/* only 1 arg -- it's the upper limit */
|
|
ihigh = ilow;
|
|
ilow = NULL;
|
|
}
|
|
|
|
/* convert ihigh if necessary */
|
|
assert(ihigh != NULL);
|
|
high = get_range_long_argument(ihigh, "end");
|
|
if (high == NULL)
|
|
goto Fail;
|
|
|
|
/* ihigh correct now; do ilow */
|
|
if (ilow == NULL) {
|
|
Py_INCREF(zero);
|
|
low = zero;
|
|
}
|
|
else {
|
|
low = get_range_long_argument(ilow, "start");
|
|
if (low == NULL)
|
|
goto Fail;
|
|
}
|
|
|
|
/* ilow and ihigh correct now; do istep */
|
|
if (istep == NULL)
|
|
step = PyLong_FromLong(1);
|
|
else
|
|
step = get_range_long_argument(istep, "step");
|
|
if (step == NULL)
|
|
goto Fail;
|
|
|
|
if (PyObject_Cmp(step, zero, &cmp_result) == -1)
|
|
goto Fail;
|
|
|
|
if (cmp_result == 0) {
|
|
PyErr_SetString(PyExc_ValueError,
|
|
"range() step argument must not be zero");
|
|
goto Fail;
|
|
}
|
|
|
|
if (cmp_result > 0)
|
|
bign = get_len_of_range_longs(low, high, step);
|
|
else {
|
|
PyObject *neg_step = PyNumber_Negative(step);
|
|
if (neg_step == NULL)
|
|
goto Fail;
|
|
bign = get_len_of_range_longs(high, low, neg_step);
|
|
Py_DECREF(neg_step);
|
|
}
|
|
|
|
n = (Py_ssize_t)bign;
|
|
if (bign < 0 || (long)n != bign) {
|
|
PyErr_SetString(PyExc_OverflowError,
|
|
"range() result has too many items");
|
|
goto Fail;
|
|
}
|
|
|
|
v = PyList_New(n);
|
|
if (v == NULL)
|
|
goto Fail;
|
|
|
|
curnum = low;
|
|
Py_INCREF(curnum);
|
|
|
|
for (i = 0; i < n; i++) {
|
|
PyObject *w = PyNumber_Long(curnum);
|
|
PyObject *tmp_num;
|
|
if (w == NULL)
|
|
goto Fail;
|
|
|
|
PyList_SET_ITEM(v, i, w);
|
|
|
|
tmp_num = PyNumber_Add(curnum, step);
|
|
if (tmp_num == NULL)
|
|
goto Fail;
|
|
|
|
Py_DECREF(curnum);
|
|
curnum = tmp_num;
|
|
}
|
|
Py_DECREF(low);
|
|
Py_DECREF(high);
|
|
Py_DECREF(step);
|
|
Py_DECREF(zero);
|
|
Py_DECREF(curnum);
|
|
return v;
|
|
|
|
Fail:
|
|
Py_XDECREF(low);
|
|
Py_XDECREF(high);
|
|
Py_XDECREF(step);
|
|
Py_DECREF(zero);
|
|
Py_XDECREF(curnum);
|
|
Py_XDECREF(v);
|
|
return NULL;
|
|
}
|
|
|
|
/* Return number of items in range/xrange (lo, hi, step). step > 0
|
|
* required. Return a value < 0 if & only if the true value is too
|
|
* large to fit in a signed long.
|
|
*/
|
|
static long
|
|
get_len_of_range(long lo, long hi, long step)
|
|
{
|
|
/* -------------------------------------------------------------
|
|
If lo >= hi, the range is empty.
|
|
Else if n values are in the range, the last one is
|
|
lo + (n-1)*step, which must be <= hi-1. Rearranging,
|
|
n <= (hi - lo - 1)/step + 1, so taking the floor of the RHS gives
|
|
the proper value. Since lo < hi in this case, hi-lo-1 >= 0, so
|
|
the RHS is non-negative and so truncation is the same as the
|
|
floor. Letting M be the largest positive long, the worst case
|
|
for the RHS numerator is hi=M, lo=-M-1, and then
|
|
hi-lo-1 = M-(-M-1)-1 = 2*M. Therefore unsigned long has enough
|
|
precision to compute the RHS exactly.
|
|
---------------------------------------------------------------*/
|
|
long n = 0;
|
|
if (lo < hi) {
|
|
unsigned long uhi = (unsigned long)hi;
|
|
unsigned long ulo = (unsigned long)lo;
|
|
unsigned long diff = uhi - ulo - 1;
|
|
n = (long)(diff / (unsigned long)step + 1);
|
|
}
|
|
return n;
|
|
}
|
|
|
|
static PyObject *
|
|
builtin_range(PyObject *self, PyObject *args)
|
|
{
|
|
long ilow = 0, ihigh = 0, istep = 1;
|
|
long bign;
|
|
Py_ssize_t i, n;
|
|
|
|
PyObject *v;
|
|
|
|
if (PyTuple_Size(args) <= 1) {
|
|
if (!PyArg_ParseTuple(args,
|
|
"l;range() requires 1-3 int arguments",
|
|
&ihigh)) {
|
|
PyErr_Clear();
|
|
return handle_range_longs(self, args);
|
|
}
|
|
}
|
|
else {
|
|
if (!PyArg_ParseTuple(args,
|
|
"ll|l;range() requires 1-3 int arguments",
|
|
&ilow, &ihigh, &istep)) {
|
|
PyErr_Clear();
|
|
return handle_range_longs(self, args);
|
|
}
|
|
}
|
|
if (istep == 0) {
|
|
PyErr_SetString(PyExc_ValueError,
|
|
"range() step argument must not be zero");
|
|
return NULL;
|
|
}
|
|
if (istep > 0)
|
|
bign = get_len_of_range(ilow, ihigh, istep);
|
|
else
|
|
bign = get_len_of_range(ihigh, ilow, -istep);
|
|
n = (Py_ssize_t)bign;
|
|
if (bign < 0 || (long)n != bign) {
|
|
PyErr_SetString(PyExc_OverflowError,
|
|
"range() result has too many items");
|
|
return NULL;
|
|
}
|
|
v = PyList_New(n);
|
|
if (v == NULL)
|
|
return NULL;
|
|
for (i = 0; i < n; i++) {
|
|
PyObject *w = PyInt_FromLong(ilow);
|
|
if (w == NULL) {
|
|
Py_DECREF(v);
|
|
return NULL;
|
|
}
|
|
PyList_SET_ITEM(v, i, w);
|
|
ilow += istep;
|
|
}
|
|
return v;
|
|
}
|
|
|
|
PyDoc_STRVAR(range_doc,
|
|
"range(stop) -> list of integers\n\
|
|
range(start, stop[, step]) -> list of integers\n\
|
|
\n\
|
|
Return a list containing an arithmetic progression of integers.\n\
|
|
range(i, j) returns [i, i+1, i+2, ..., j-1]; start (!) defaults to 0.\n\
|
|
When step is given, it specifies the increment (or decrement).\n\
|
|
For example, range(4) returns [0, 1, 2, 3]. The end point is omitted!\n\
|
|
These are exactly the valid indices for a list of 4 elements.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_raw_input(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *v = NULL;
|
|
PyObject *fin = PySys_GetObject("stdin");
|
|
PyObject *fout = PySys_GetObject("stdout");
|
|
|
|
if (!PyArg_UnpackTuple(args, "[raw_]input", 0, 1, &v))
|
|
return NULL;
|
|
|
|
if (fin == NULL) {
|
|
PyErr_SetString(PyExc_RuntimeError, "[raw_]input: lost sys.stdin");
|
|
return NULL;
|
|
}
|
|
if (fout == NULL) {
|
|
PyErr_SetString(PyExc_RuntimeError, "[raw_]input: lost sys.stdout");
|
|
return NULL;
|
|
}
|
|
if (PyFile_SoftSpace(fout, 0)) {
|
|
if (PyFile_WriteString(" ", fout) != 0)
|
|
return NULL;
|
|
}
|
|
if (PyFile_AsFile(fin) && PyFile_AsFile(fout)
|
|
&& isatty(fileno(PyFile_AsFile(fin)))
|
|
&& isatty(fileno(PyFile_AsFile(fout)))) {
|
|
PyObject *po;
|
|
char *prompt;
|
|
char *s;
|
|
PyObject *result;
|
|
if (v != NULL) {
|
|
po = PyObject_Str(v);
|
|
if (po == NULL)
|
|
return NULL;
|
|
prompt = PyString_AsString(po);
|
|
if (prompt == NULL)
|
|
return NULL;
|
|
}
|
|
else {
|
|
po = NULL;
|
|
prompt = "";
|
|
}
|
|
s = PyOS_Readline(PyFile_AsFile(fin), PyFile_AsFile(fout),
|
|
prompt);
|
|
Py_XDECREF(po);
|
|
if (s == NULL) {
|
|
if (!PyErr_Occurred())
|
|
PyErr_SetNone(PyExc_KeyboardInterrupt);
|
|
return NULL;
|
|
}
|
|
if (*s == '\0') {
|
|
PyErr_SetNone(PyExc_EOFError);
|
|
result = NULL;
|
|
}
|
|
else { /* strip trailing '\n' */
|
|
size_t len = strlen(s);
|
|
if (len > PY_SSIZE_T_MAX) {
|
|
PyErr_SetString(PyExc_OverflowError,
|
|
"[raw_]input: input too long");
|
|
result = NULL;
|
|
}
|
|
else {
|
|
result = PyString_FromStringAndSize(s, len-1);
|
|
}
|
|
}
|
|
PyMem_FREE(s);
|
|
return result;
|
|
}
|
|
if (v != NULL) {
|
|
if (PyFile_WriteObject(v, fout, Py_PRINT_RAW) != 0)
|
|
return NULL;
|
|
}
|
|
return PyFile_GetLine(fin, -1);
|
|
}
|
|
|
|
PyDoc_STRVAR(raw_input_doc,
|
|
"raw_input([prompt]) -> string\n\
|
|
\n\
|
|
Read a string from standard input. The trailing newline is stripped.\n\
|
|
If the user hits EOF (Unix: Ctl-D, Windows: Ctl-Z+Return), raise EOFError.\n\
|
|
On Unix, GNU readline is used if enabled. The prompt string, if given,\n\
|
|
is printed without a trailing newline before reading.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_reduce(PyObject *self, PyObject *args)
|
|
{
|
|
static PyObject *functools_reduce = NULL;
|
|
|
|
if (PyErr_WarnPy3k("reduce() not supported in 3.x; "
|
|
"use functools.reduce()", 1) < 0)
|
|
return NULL;
|
|
|
|
if (functools_reduce == NULL) {
|
|
PyObject *functools = PyImport_ImportModule("functools");
|
|
if (functools == NULL)
|
|
return NULL;
|
|
functools_reduce = PyObject_GetAttrString(functools, "reduce");
|
|
Py_DECREF(functools);
|
|
if (functools_reduce == NULL)
|
|
return NULL;
|
|
}
|
|
return PyObject_Call(functools_reduce, args, NULL);
|
|
}
|
|
|
|
PyDoc_STRVAR(reduce_doc,
|
|
"reduce(function, sequence[, initial]) -> value\n\
|
|
\n\
|
|
Apply a function of two arguments cumulatively to the items of a sequence,\n\
|
|
from left to right, so as to reduce the sequence to a single value.\n\
|
|
For example, reduce(lambda x, y: x+y, [1, 2, 3, 4, 5]) calculates\n\
|
|
((((1+2)+3)+4)+5). If initial is present, it is placed before the items\n\
|
|
of the sequence in the calculation, and serves as a default when the\n\
|
|
sequence is empty.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_reload(PyObject *self, PyObject *v)
|
|
{
|
|
if (PyErr_WarnPy3k("In 3.x, reload() is renamed to imp.reload()",
|
|
1) < 0)
|
|
return NULL;
|
|
|
|
return PyImport_ReloadModule(v);
|
|
}
|
|
|
|
PyDoc_STRVAR(reload_doc,
|
|
"reload(module) -> module\n\
|
|
\n\
|
|
Reload the module. The module must have been successfully imported before.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_repr(PyObject *self, PyObject *v)
|
|
{
|
|
return PyObject_Repr(v);
|
|
}
|
|
|
|
PyDoc_STRVAR(repr_doc,
|
|
"repr(object) -> string\n\
|
|
\n\
|
|
Return the canonical string representation of the object.\n\
|
|
For most object types, eval(repr(object)) == object.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_round(PyObject *self, PyObject *args, PyObject *kwds)
|
|
{
|
|
double x;
|
|
PyObject *o_ndigits = NULL;
|
|
Py_ssize_t ndigits;
|
|
static char *kwlist[] = {"number", "ndigits", 0};
|
|
|
|
if (!PyArg_ParseTupleAndKeywords(args, kwds, "d|O:round",
|
|
kwlist, &x, &o_ndigits))
|
|
return NULL;
|
|
|
|
if (o_ndigits == NULL) {
|
|
/* second argument defaults to 0 */
|
|
ndigits = 0;
|
|
}
|
|
else {
|
|
/* interpret 2nd argument as a Py_ssize_t; clip on overflow */
|
|
ndigits = PyNumber_AsSsize_t(o_ndigits, NULL);
|
|
if (ndigits == -1 && PyErr_Occurred())
|
|
return NULL;
|
|
}
|
|
|
|
/* nans, infinities and zeros round to themselves */
|
|
if (!Py_IS_FINITE(x) || x == 0.0)
|
|
return PyFloat_FromDouble(x);
|
|
|
|
/* Deal with extreme values for ndigits. For ndigits > NDIGITS_MAX, x
|
|
always rounds to itself. For ndigits < NDIGITS_MIN, x always
|
|
rounds to +-0.0. Here 0.30103 is an upper bound for log10(2). */
|
|
#define NDIGITS_MAX ((int)((DBL_MANT_DIG-DBL_MIN_EXP) * 0.30103))
|
|
#define NDIGITS_MIN (-(int)((DBL_MAX_EXP + 1) * 0.30103))
|
|
if (ndigits > NDIGITS_MAX)
|
|
/* return x */
|
|
return PyFloat_FromDouble(x);
|
|
else if (ndigits < NDIGITS_MIN)
|
|
/* return 0.0, but with sign of x */
|
|
return PyFloat_FromDouble(0.0*x);
|
|
else
|
|
/* finite x, and ndigits is not unreasonably large */
|
|
/* _Py_double_round is defined in floatobject.c */
|
|
return _Py_double_round(x, (int)ndigits);
|
|
#undef NDIGITS_MAX
|
|
#undef NDIGITS_MIN
|
|
}
|
|
|
|
PyDoc_STRVAR(round_doc,
|
|
"round(number[, ndigits]) -> floating point number\n\
|
|
\n\
|
|
Round a number to a given precision in decimal digits (default 0 digits).\n\
|
|
This always returns a floating point number. Precision may be negative.");
|
|
|
|
static PyObject *
|
|
builtin_sorted(PyObject *self, PyObject *args, PyObject *kwds)
|
|
{
|
|
PyObject *newlist, *v, *seq, *compare=NULL, *keyfunc=NULL, *newargs;
|
|
PyObject *callable;
|
|
static char *kwlist[] = {"iterable", "cmp", "key", "reverse", 0};
|
|
int reverse;
|
|
|
|
/* args 1-4 should match listsort in Objects/listobject.c */
|
|
if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|OOi:sorted",
|
|
kwlist, &seq, &compare, &keyfunc, &reverse))
|
|
return NULL;
|
|
|
|
newlist = PySequence_List(seq);
|
|
if (newlist == NULL)
|
|
return NULL;
|
|
|
|
callable = PyObject_GetAttrString(newlist, "sort");
|
|
if (callable == NULL) {
|
|
Py_DECREF(newlist);
|
|
return NULL;
|
|
}
|
|
|
|
newargs = PyTuple_GetSlice(args, 1, 4);
|
|
if (newargs == NULL) {
|
|
Py_DECREF(newlist);
|
|
Py_DECREF(callable);
|
|
return NULL;
|
|
}
|
|
|
|
v = PyObject_Call(callable, newargs, kwds);
|
|
Py_DECREF(newargs);
|
|
Py_DECREF(callable);
|
|
if (v == NULL) {
|
|
Py_DECREF(newlist);
|
|
return NULL;
|
|
}
|
|
Py_DECREF(v);
|
|
return newlist;
|
|
}
|
|
|
|
PyDoc_STRVAR(sorted_doc,
|
|
"sorted(iterable, cmp=None, key=None, reverse=False) --> new sorted list");
|
|
|
|
static PyObject *
|
|
builtin_vars(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *v = NULL;
|
|
PyObject *d;
|
|
|
|
if (!PyArg_UnpackTuple(args, "vars", 0, 1, &v))
|
|
return NULL;
|
|
if (v == NULL) {
|
|
d = PyEval_GetLocals();
|
|
if (d == NULL) {
|
|
if (!PyErr_Occurred())
|
|
PyErr_SetString(PyExc_SystemError,
|
|
"vars(): no locals!?");
|
|
}
|
|
else
|
|
Py_INCREF(d);
|
|
}
|
|
else {
|
|
d = PyObject_GetAttrString(v, "__dict__");
|
|
if (d == NULL) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"vars() argument must have __dict__ attribute");
|
|
return NULL;
|
|
}
|
|
}
|
|
return d;
|
|
}
|
|
|
|
PyDoc_STRVAR(vars_doc,
|
|
"vars([object]) -> dictionary\n\
|
|
\n\
|
|
Without arguments, equivalent to locals().\n\
|
|
With an argument, equivalent to object.__dict__.");
|
|
|
|
|
|
static PyObject*
|
|
builtin_sum(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *seq;
|
|
PyObject *result = NULL;
|
|
PyObject *temp, *item, *iter;
|
|
|
|
if (!PyArg_UnpackTuple(args, "sum", 1, 2, &seq, &result))
|
|
return NULL;
|
|
|
|
iter = PyObject_GetIter(seq);
|
|
if (iter == NULL)
|
|
return NULL;
|
|
|
|
if (result == NULL) {
|
|
result = PyInt_FromLong(0);
|
|
if (result == NULL) {
|
|
Py_DECREF(iter);
|
|
return NULL;
|
|
}
|
|
} else {
|
|
/* reject string values for 'start' parameter */
|
|
if (PyObject_TypeCheck(result, &PyBaseString_Type)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"sum() can't sum strings [use ''.join(seq) instead]");
|
|
Py_DECREF(iter);
|
|
return NULL;
|
|
}
|
|
Py_INCREF(result);
|
|
}
|
|
|
|
#ifndef SLOW_SUM
|
|
/* Fast addition by keeping temporary sums in C instead of new Python objects.
|
|
Assumes all inputs are the same type. If the assumption fails, default
|
|
to the more general routine.
|
|
*/
|
|
if (PyInt_CheckExact(result)) {
|
|
long i_result = PyInt_AS_LONG(result);
|
|
Py_DECREF(result);
|
|
result = NULL;
|
|
while(result == NULL) {
|
|
item = PyIter_Next(iter);
|
|
if (item == NULL) {
|
|
Py_DECREF(iter);
|
|
if (PyErr_Occurred())
|
|
return NULL;
|
|
return PyInt_FromLong(i_result);
|
|
}
|
|
if (PyInt_CheckExact(item)) {
|
|
long b = PyInt_AS_LONG(item);
|
|
long x = i_result + b;
|
|
if ((x^i_result) >= 0 || (x^b) >= 0) {
|
|
i_result = x;
|
|
Py_DECREF(item);
|
|
continue;
|
|
}
|
|
}
|
|
/* Either overflowed or is not an int. Restore real objects and process normally */
|
|
result = PyInt_FromLong(i_result);
|
|
temp = PyNumber_Add(result, item);
|
|
Py_DECREF(result);
|
|
Py_DECREF(item);
|
|
result = temp;
|
|
if (result == NULL) {
|
|
Py_DECREF(iter);
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (PyFloat_CheckExact(result)) {
|
|
double f_result = PyFloat_AS_DOUBLE(result);
|
|
Py_DECREF(result);
|
|
result = NULL;
|
|
while(result == NULL) {
|
|
item = PyIter_Next(iter);
|
|
if (item == NULL) {
|
|
Py_DECREF(iter);
|
|
if (PyErr_Occurred())
|
|
return NULL;
|
|
return PyFloat_FromDouble(f_result);
|
|
}
|
|
if (PyFloat_CheckExact(item)) {
|
|
PyFPE_START_PROTECT("add", Py_DECREF(item); Py_DECREF(iter); return 0)
|
|
f_result += PyFloat_AS_DOUBLE(item);
|
|
PyFPE_END_PROTECT(f_result)
|
|
Py_DECREF(item);
|
|
continue;
|
|
}
|
|
if (PyInt_CheckExact(item)) {
|
|
PyFPE_START_PROTECT("add", Py_DECREF(item); Py_DECREF(iter); return 0)
|
|
f_result += (double)PyInt_AS_LONG(item);
|
|
PyFPE_END_PROTECT(f_result)
|
|
Py_DECREF(item);
|
|
continue;
|
|
}
|
|
result = PyFloat_FromDouble(f_result);
|
|
temp = PyNumber_Add(result, item);
|
|
Py_DECREF(result);
|
|
Py_DECREF(item);
|
|
result = temp;
|
|
if (result == NULL) {
|
|
Py_DECREF(iter);
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
for(;;) {
|
|
item = PyIter_Next(iter);
|
|
if (item == NULL) {
|
|
/* error, or end-of-sequence */
|
|
if (PyErr_Occurred()) {
|
|
Py_DECREF(result);
|
|
result = NULL;
|
|
}
|
|
break;
|
|
}
|
|
/* It's tempting to use PyNumber_InPlaceAdd instead of
|
|
PyNumber_Add here, to avoid quadratic running time
|
|
when doing 'sum(list_of_lists, [])'. However, this
|
|
would produce a change in behaviour: a snippet like
|
|
|
|
empty = []
|
|
sum([[x] for x in range(10)], empty)
|
|
|
|
would change the value of empty. */
|
|
temp = PyNumber_Add(result, item);
|
|
Py_DECREF(result);
|
|
Py_DECREF(item);
|
|
result = temp;
|
|
if (result == NULL)
|
|
break;
|
|
}
|
|
Py_DECREF(iter);
|
|
return result;
|
|
}
|
|
|
|
PyDoc_STRVAR(sum_doc,
|
|
"sum(sequence[, start]) -> value\n\
|
|
\n\
|
|
Return the sum of a sequence of numbers (NOT strings) plus the value\n\
|
|
of parameter 'start' (which defaults to 0). When the sequence is\n\
|
|
empty, return start.");
|
|
|
|
|
|
static PyObject *
|
|
builtin_isinstance(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *inst;
|
|
PyObject *cls;
|
|
int retval;
|
|
|
|
if (!PyArg_UnpackTuple(args, "isinstance", 2, 2, &inst, &cls))
|
|
return NULL;
|
|
|
|
retval = PyObject_IsInstance(inst, cls);
|
|
if (retval < 0)
|
|
return NULL;
|
|
return PyBool_FromLong(retval);
|
|
}
|
|
|
|
PyDoc_STRVAR(isinstance_doc,
|
|
"isinstance(object, class-or-type-or-tuple) -> bool\n\
|
|
\n\
|
|
Return whether an object is an instance of a class or of a subclass thereof.\n\
|
|
With a type as second argument, return whether that is the object's type.\n\
|
|
The form using a tuple, isinstance(x, (A, B, ...)), is a shortcut for\n\
|
|
isinstance(x, A) or isinstance(x, B) or ... (etc.).");
|
|
|
|
|
|
static PyObject *
|
|
builtin_issubclass(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *derived;
|
|
PyObject *cls;
|
|
int retval;
|
|
|
|
if (!PyArg_UnpackTuple(args, "issubclass", 2, 2, &derived, &cls))
|
|
return NULL;
|
|
|
|
retval = PyObject_IsSubclass(derived, cls);
|
|
if (retval < 0)
|
|
return NULL;
|
|
return PyBool_FromLong(retval);
|
|
}
|
|
|
|
PyDoc_STRVAR(issubclass_doc,
|
|
"issubclass(C, B) -> bool\n\
|
|
\n\
|
|
Return whether class C is a subclass (i.e., a derived class) of class B.\n\
|
|
When using a tuple as the second argument issubclass(X, (A, B, ...)),\n\
|
|
is a shortcut for issubclass(X, A) or issubclass(X, B) or ... (etc.).");
|
|
|
|
|
|
static PyObject*
|
|
builtin_zip(PyObject *self, PyObject *args)
|
|
{
|
|
PyObject *ret;
|
|
const Py_ssize_t itemsize = PySequence_Length(args);
|
|
Py_ssize_t i;
|
|
PyObject *itlist; /* tuple of iterators */
|
|
Py_ssize_t len; /* guess at result length */
|
|
|
|
if (itemsize == 0)
|
|
return PyList_New(0);
|
|
|
|
/* args must be a tuple */
|
|
assert(PyTuple_Check(args));
|
|
|
|
/* Guess at result length: the shortest of the input lengths.
|
|
If some argument refuses to say, we refuse to guess too, lest
|
|
an argument like xrange(sys.maxint) lead us astray.*/
|
|
len = -1; /* unknown */
|
|
for (i = 0; i < itemsize; ++i) {
|
|
PyObject *item = PyTuple_GET_ITEM(args, i);
|
|
Py_ssize_t thislen = _PyObject_LengthHint(item, -2);
|
|
if (thislen < 0) {
|
|
if (thislen == -1)
|
|
return NULL;
|
|
len = -1;
|
|
break;
|
|
}
|
|
else if (len < 0 || thislen < len)
|
|
len = thislen;
|
|
}
|
|
|
|
/* allocate result list */
|
|
if (len < 0)
|
|
len = 10; /* arbitrary */
|
|
if ((ret = PyList_New(len)) == NULL)
|
|
return NULL;
|
|
|
|
/* obtain iterators */
|
|
itlist = PyTuple_New(itemsize);
|
|
if (itlist == NULL)
|
|
goto Fail_ret;
|
|
for (i = 0; i < itemsize; ++i) {
|
|
PyObject *item = PyTuple_GET_ITEM(args, i);
|
|
PyObject *it = PyObject_GetIter(item);
|
|
if (it == NULL) {
|
|
if (PyErr_ExceptionMatches(PyExc_TypeError))
|
|
PyErr_Format(PyExc_TypeError,
|
|
"zip argument #%zd must support iteration",
|
|
i+1);
|
|
goto Fail_ret_itlist;
|
|
}
|
|
PyTuple_SET_ITEM(itlist, i, it);
|
|
}
|
|
|
|
/* build result into ret list */
|
|
for (i = 0; ; ++i) {
|
|
int j;
|
|
PyObject *next = PyTuple_New(itemsize);
|
|
if (!next)
|
|
goto Fail_ret_itlist;
|
|
|
|
for (j = 0; j < itemsize; j++) {
|
|
PyObject *it = PyTuple_GET_ITEM(itlist, j);
|
|
PyObject *item = PyIter_Next(it);
|
|
if (!item) {
|
|
if (PyErr_Occurred()) {
|
|
Py_DECREF(ret);
|
|
ret = NULL;
|
|
}
|
|
Py_DECREF(next);
|
|
Py_DECREF(itlist);
|
|
goto Done;
|
|
}
|
|
PyTuple_SET_ITEM(next, j, item);
|
|
}
|
|
|
|
if (i < len)
|
|
PyList_SET_ITEM(ret, i, next);
|
|
else {
|
|
int status = PyList_Append(ret, next);
|
|
Py_DECREF(next);
|
|
++len;
|
|
if (status < 0)
|
|
goto Fail_ret_itlist;
|
|
}
|
|
}
|
|
|
|
Done:
|
|
if (ret != NULL && i < len) {
|
|
/* The list is too big. */
|
|
if (PyList_SetSlice(ret, i, len, NULL) < 0)
|
|
return NULL;
|
|
}
|
|
return ret;
|
|
|
|
Fail_ret_itlist:
|
|
Py_DECREF(itlist);
|
|
Fail_ret:
|
|
Py_DECREF(ret);
|
|
return NULL;
|
|
}
|
|
|
|
|
|
PyDoc_STRVAR(zip_doc,
|
|
"zip(seq1 [, seq2 [...]]) -> [(seq1[0], seq2[0] ...), (...)]\n\
|
|
\n\
|
|
Return a list of tuples, where each tuple contains the i-th element\n\
|
|
from each of the argument sequences. The returned list is truncated\n\
|
|
in length to the length of the shortest argument sequence.");
|
|
|
|
|
|
static PyMethodDef builtin_methods[] = {
|
|
{"__import__", (PyCFunction)builtin___import__, METH_VARARGS | METH_KEYWORDS, import_doc},
|
|
{"abs", builtin_abs, METH_O, abs_doc},
|
|
{"all", builtin_all, METH_O, all_doc},
|
|
{"any", builtin_any, METH_O, any_doc},
|
|
{"apply", builtin_apply, METH_VARARGS, apply_doc},
|
|
{"bin", builtin_bin, METH_O, bin_doc},
|
|
{"callable", builtin_callable, METH_O, callable_doc},
|
|
{"chr", builtin_chr, METH_VARARGS, chr_doc},
|
|
{"cmp", builtin_cmp, METH_VARARGS, cmp_doc},
|
|
{"coerce", builtin_coerce, METH_VARARGS, coerce_doc},
|
|
{"compile", (PyCFunction)builtin_compile, METH_VARARGS | METH_KEYWORDS, compile_doc},
|
|
{"delattr", builtin_delattr, METH_VARARGS, delattr_doc},
|
|
{"dir", builtin_dir, METH_VARARGS, dir_doc},
|
|
{"divmod", builtin_divmod, METH_VARARGS, divmod_doc},
|
|
{"eval", builtin_eval, METH_VARARGS, eval_doc},
|
|
{"execfile", builtin_execfile, METH_VARARGS, execfile_doc},
|
|
{"filter", builtin_filter, METH_VARARGS, filter_doc},
|
|
{"format", builtin_format, METH_VARARGS, format_doc},
|
|
{"getattr", builtin_getattr, METH_VARARGS, getattr_doc},
|
|
{"globals", (PyCFunction)builtin_globals, METH_NOARGS, globals_doc},
|
|
{"hasattr", builtin_hasattr, METH_VARARGS, hasattr_doc},
|
|
{"hash", builtin_hash, METH_O, hash_doc},
|
|
{"hex", builtin_hex, METH_O, hex_doc},
|
|
{"id", builtin_id, METH_O, id_doc},
|
|
{"input", builtin_input, METH_VARARGS, input_doc},
|
|
{"intern", builtin_intern, METH_VARARGS, intern_doc},
|
|
{"isinstance", builtin_isinstance, METH_VARARGS, isinstance_doc},
|
|
{"issubclass", builtin_issubclass, METH_VARARGS, issubclass_doc},
|
|
{"iter", builtin_iter, METH_VARARGS, iter_doc},
|
|
{"len", builtin_len, METH_O, len_doc},
|
|
{"locals", (PyCFunction)builtin_locals, METH_NOARGS, locals_doc},
|
|
{"map", builtin_map, METH_VARARGS, map_doc},
|
|
{"max", (PyCFunction)builtin_max, METH_VARARGS | METH_KEYWORDS, max_doc},
|
|
{"min", (PyCFunction)builtin_min, METH_VARARGS | METH_KEYWORDS, min_doc},
|
|
{"next", builtin_next, METH_VARARGS, next_doc},
|
|
{"oct", builtin_oct, METH_O, oct_doc},
|
|
{"open", (PyCFunction)builtin_open, METH_VARARGS | METH_KEYWORDS, open_doc},
|
|
{"ord", builtin_ord, METH_O, ord_doc},
|
|
{"pow", builtin_pow, METH_VARARGS, pow_doc},
|
|
{"print", (PyCFunction)builtin_print, METH_VARARGS | METH_KEYWORDS, print_doc},
|
|
{"range", builtin_range, METH_VARARGS, range_doc},
|
|
{"raw_input", builtin_raw_input, METH_VARARGS, raw_input_doc},
|
|
{"reduce", builtin_reduce, METH_VARARGS, reduce_doc},
|
|
{"reload", builtin_reload, METH_O, reload_doc},
|
|
{"repr", builtin_repr, METH_O, repr_doc},
|
|
{"round", (PyCFunction)builtin_round, METH_VARARGS | METH_KEYWORDS, round_doc},
|
|
{"setattr", builtin_setattr, METH_VARARGS, setattr_doc},
|
|
{"sorted", (PyCFunction)builtin_sorted, METH_VARARGS | METH_KEYWORDS, sorted_doc},
|
|
{"sum", builtin_sum, METH_VARARGS, sum_doc},
|
|
#ifdef Py_USING_UNICODE
|
|
{"unichr", builtin_unichr, METH_VARARGS, unichr_doc},
|
|
#endif
|
|
{"vars", builtin_vars, METH_VARARGS, vars_doc},
|
|
{"zip", builtin_zip, METH_VARARGS, zip_doc},
|
|
{NULL, NULL},
|
|
};
|
|
|
|
PyDoc_STRVAR(builtin_doc,
|
|
"Built-in functions, exceptions, and other objects.\n\
|
|
\n\
|
|
Noteworthy: None is the `nil' object; Ellipsis represents `...' in slices.");
|
|
|
|
PyObject *
|
|
_PyBuiltin_Init(void)
|
|
{
|
|
PyObject *mod, *dict, *debug;
|
|
mod = Py_InitModule4("__builtin__", builtin_methods,
|
|
builtin_doc, (PyObject *)NULL,
|
|
PYTHON_API_VERSION);
|
|
if (mod == NULL)
|
|
return NULL;
|
|
dict = PyModule_GetDict(mod);
|
|
|
|
#ifdef Py_TRACE_REFS
|
|
/* __builtin__ exposes a number of statically allocated objects
|
|
* that, before this code was added in 2.3, never showed up in
|
|
* the list of "all objects" maintained by Py_TRACE_REFS. As a
|
|
* result, programs leaking references to None and False (etc)
|
|
* couldn't be diagnosed by examining sys.getobjects(0).
|
|
*/
|
|
#define ADD_TO_ALL(OBJECT) _Py_AddToAllObjects((PyObject *)(OBJECT), 0)
|
|
#else
|
|
#define ADD_TO_ALL(OBJECT) (void)0
|
|
#endif
|
|
|
|
#define SETBUILTIN(NAME, OBJECT) \
|
|
if (PyDict_SetItemString(dict, NAME, (PyObject *)OBJECT) < 0) \
|
|
return NULL; \
|
|
ADD_TO_ALL(OBJECT)
|
|
|
|
SETBUILTIN("None", Py_None);
|
|
SETBUILTIN("Ellipsis", Py_Ellipsis);
|
|
SETBUILTIN("NotImplemented", Py_NotImplemented);
|
|
SETBUILTIN("False", Py_False);
|
|
SETBUILTIN("True", Py_True);
|
|
SETBUILTIN("basestring", &PyBaseString_Type);
|
|
SETBUILTIN("bool", &PyBool_Type);
|
|
SETBUILTIN("memoryview", &PyMemoryView_Type);
|
|
SETBUILTIN("bytearray", &PyByteArray_Type);
|
|
SETBUILTIN("bytes", &PyString_Type);
|
|
SETBUILTIN("buffer", &PyBuffer_Type);
|
|
SETBUILTIN("classmethod", &PyClassMethod_Type);
|
|
#ifndef WITHOUT_COMPLEX
|
|
SETBUILTIN("complex", &PyComplex_Type);
|
|
#endif
|
|
SETBUILTIN("dict", &PyDict_Type);
|
|
SETBUILTIN("enumerate", &PyEnum_Type);
|
|
SETBUILTIN("file", &PyFile_Type);
|
|
SETBUILTIN("float", &PyFloat_Type);
|
|
SETBUILTIN("frozenset", &PyFrozenSet_Type);
|
|
SETBUILTIN("property", &PyProperty_Type);
|
|
SETBUILTIN("int", &PyInt_Type);
|
|
SETBUILTIN("list", &PyList_Type);
|
|
SETBUILTIN("long", &PyLong_Type);
|
|
SETBUILTIN("object", &PyBaseObject_Type);
|
|
SETBUILTIN("reversed", &PyReversed_Type);
|
|
SETBUILTIN("set", &PySet_Type);
|
|
SETBUILTIN("slice", &PySlice_Type);
|
|
SETBUILTIN("staticmethod", &PyStaticMethod_Type);
|
|
SETBUILTIN("str", &PyString_Type);
|
|
SETBUILTIN("super", &PySuper_Type);
|
|
SETBUILTIN("tuple", &PyTuple_Type);
|
|
SETBUILTIN("type", &PyType_Type);
|
|
SETBUILTIN("xrange", &PyRange_Type);
|
|
#ifdef Py_USING_UNICODE
|
|
SETBUILTIN("unicode", &PyUnicode_Type);
|
|
#endif
|
|
debug = PyBool_FromLong(Py_OptimizeFlag == 0);
|
|
if (PyDict_SetItemString(dict, "__debug__", debug) < 0) {
|
|
Py_XDECREF(debug);
|
|
return NULL;
|
|
}
|
|
Py_XDECREF(debug);
|
|
|
|
return mod;
|
|
#undef ADD_TO_ALL
|
|
#undef SETBUILTIN
|
|
}
|
|
|
|
/* Helper for filter(): filter a tuple through a function */
|
|
|
|
static PyObject *
|
|
filtertuple(PyObject *func, PyObject *tuple)
|
|
{
|
|
PyObject *result;
|
|
Py_ssize_t i, j;
|
|
Py_ssize_t len = PyTuple_Size(tuple);
|
|
|
|
if (len == 0) {
|
|
if (PyTuple_CheckExact(tuple))
|
|
Py_INCREF(tuple);
|
|
else
|
|
tuple = PyTuple_New(0);
|
|
return tuple;
|
|
}
|
|
|
|
if ((result = PyTuple_New(len)) == NULL)
|
|
return NULL;
|
|
|
|
for (i = j = 0; i < len; ++i) {
|
|
PyObject *item, *good;
|
|
int ok;
|
|
|
|
if (tuple->ob_type->tp_as_sequence &&
|
|
tuple->ob_type->tp_as_sequence->sq_item) {
|
|
item = tuple->ob_type->tp_as_sequence->sq_item(tuple, i);
|
|
if (item == NULL)
|
|
goto Fail_1;
|
|
} else {
|
|
PyErr_SetString(PyExc_TypeError, "filter(): unsubscriptable tuple");
|
|
goto Fail_1;
|
|
}
|
|
if (func == Py_None) {
|
|
Py_INCREF(item);
|
|
good = item;
|
|
}
|
|
else {
|
|
PyObject *arg = PyTuple_Pack(1, item);
|
|
if (arg == NULL) {
|
|
Py_DECREF(item);
|
|
goto Fail_1;
|
|
}
|
|
good = PyEval_CallObject(func, arg);
|
|
Py_DECREF(arg);
|
|
if (good == NULL) {
|
|
Py_DECREF(item);
|
|
goto Fail_1;
|
|
}
|
|
}
|
|
ok = PyObject_IsTrue(good);
|
|
Py_DECREF(good);
|
|
if (ok > 0) {
|
|
if (PyTuple_SetItem(result, j++, item) < 0)
|
|
goto Fail_1;
|
|
}
|
|
else {
|
|
Py_DECREF(item);
|
|
if (ok < 0)
|
|
goto Fail_1;
|
|
}
|
|
}
|
|
|
|
if (_PyTuple_Resize(&result, j) < 0)
|
|
return NULL;
|
|
|
|
return result;
|
|
|
|
Fail_1:
|
|
Py_DECREF(result);
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/* Helper for filter(): filter a string through a function */
|
|
|
|
static PyObject *
|
|
filterstring(PyObject *func, PyObject *strobj)
|
|
{
|
|
PyObject *result;
|
|
Py_ssize_t i, j;
|
|
Py_ssize_t len = PyString_Size(strobj);
|
|
Py_ssize_t outlen = len;
|
|
|
|
if (func == Py_None) {
|
|
/* If it's a real string we can return the original,
|
|
* as no character is ever false and __getitem__
|
|
* does return this character. If it's a subclass
|
|
* we must go through the __getitem__ loop */
|
|
if (PyString_CheckExact(strobj)) {
|
|
Py_INCREF(strobj);
|
|
return strobj;
|
|
}
|
|
}
|
|
if ((result = PyString_FromStringAndSize(NULL, len)) == NULL)
|
|
return NULL;
|
|
|
|
for (i = j = 0; i < len; ++i) {
|
|
PyObject *item;
|
|
int ok;
|
|
|
|
item = (*strobj->ob_type->tp_as_sequence->sq_item)(strobj, i);
|
|
if (item == NULL)
|
|
goto Fail_1;
|
|
if (func==Py_None) {
|
|
ok = 1;
|
|
} else {
|
|
PyObject *arg, *good;
|
|
arg = PyTuple_Pack(1, item);
|
|
if (arg == NULL) {
|
|
Py_DECREF(item);
|
|
goto Fail_1;
|
|
}
|
|
good = PyEval_CallObject(func, arg);
|
|
Py_DECREF(arg);
|
|
if (good == NULL) {
|
|
Py_DECREF(item);
|
|
goto Fail_1;
|
|
}
|
|
ok = PyObject_IsTrue(good);
|
|
Py_DECREF(good);
|
|
}
|
|
if (ok > 0) {
|
|
Py_ssize_t reslen;
|
|
if (!PyString_Check(item)) {
|
|
PyErr_SetString(PyExc_TypeError, "can't filter str to str:"
|
|
" __getitem__ returned different type");
|
|
Py_DECREF(item);
|
|
goto Fail_1;
|
|
}
|
|
reslen = PyString_GET_SIZE(item);
|
|
if (reslen == 1) {
|
|
PyString_AS_STRING(result)[j++] =
|
|
PyString_AS_STRING(item)[0];
|
|
} else {
|
|
/* do we need more space? */
|
|
Py_ssize_t need = j;
|
|
|
|
/* calculate space requirements while checking for overflow */
|
|
if (need > PY_SSIZE_T_MAX - reslen) {
|
|
Py_DECREF(item);
|
|
goto Fail_1;
|
|
}
|
|
|
|
need += reslen;
|
|
|
|
if (need > PY_SSIZE_T_MAX - len) {
|
|
Py_DECREF(item);
|
|
goto Fail_1;
|
|
}
|
|
|
|
need += len;
|
|
|
|
if (need <= i) {
|
|
Py_DECREF(item);
|
|
goto Fail_1;
|
|
}
|
|
|
|
need = need - i - 1;
|
|
|
|
assert(need >= 0);
|
|
assert(outlen >= 0);
|
|
|
|
if (need > outlen) {
|
|
/* overallocate, to avoid reallocations */
|
|
if (outlen > PY_SSIZE_T_MAX / 2) {
|
|
Py_DECREF(item);
|
|
return NULL;
|
|
}
|
|
|
|
if (need<2*outlen) {
|
|
need = 2*outlen;
|
|
}
|
|
if (_PyString_Resize(&result, need)) {
|
|
Py_DECREF(item);
|
|
return NULL;
|
|
}
|
|
outlen = need;
|
|
}
|
|
memcpy(
|
|
PyString_AS_STRING(result) + j,
|
|
PyString_AS_STRING(item),
|
|
reslen
|
|
);
|
|
j += reslen;
|
|
}
|
|
}
|
|
Py_DECREF(item);
|
|
if (ok < 0)
|
|
goto Fail_1;
|
|
}
|
|
|
|
if (j < outlen)
|
|
_PyString_Resize(&result, j);
|
|
|
|
return result;
|
|
|
|
Fail_1:
|
|
Py_DECREF(result);
|
|
return NULL;
|
|
}
|
|
|
|
#ifdef Py_USING_UNICODE
|
|
/* Helper for filter(): filter a Unicode object through a function */
|
|
|
|
static PyObject *
|
|
filterunicode(PyObject *func, PyObject *strobj)
|
|
{
|
|
PyObject *result;
|
|
register Py_ssize_t i, j;
|
|
Py_ssize_t len = PyUnicode_GetSize(strobj);
|
|
Py_ssize_t outlen = len;
|
|
|
|
if (func == Py_None) {
|
|
/* If it's a real string we can return the original,
|
|
* as no character is ever false and __getitem__
|
|
* does return this character. If it's a subclass
|
|
* we must go through the __getitem__ loop */
|
|
if (PyUnicode_CheckExact(strobj)) {
|
|
Py_INCREF(strobj);
|
|
return strobj;
|
|
}
|
|
}
|
|
if ((result = PyUnicode_FromUnicode(NULL, len)) == NULL)
|
|
return NULL;
|
|
|
|
for (i = j = 0; i < len; ++i) {
|
|
PyObject *item, *arg, *good;
|
|
int ok;
|
|
|
|
item = (*strobj->ob_type->tp_as_sequence->sq_item)(strobj, i);
|
|
if (item == NULL)
|
|
goto Fail_1;
|
|
if (func == Py_None) {
|
|
ok = 1;
|
|
} else {
|
|
arg = PyTuple_Pack(1, item);
|
|
if (arg == NULL) {
|
|
Py_DECREF(item);
|
|
goto Fail_1;
|
|
}
|
|
good = PyEval_CallObject(func, arg);
|
|
Py_DECREF(arg);
|
|
if (good == NULL) {
|
|
Py_DECREF(item);
|
|
goto Fail_1;
|
|
}
|
|
ok = PyObject_IsTrue(good);
|
|
Py_DECREF(good);
|
|
}
|
|
if (ok > 0) {
|
|
Py_ssize_t reslen;
|
|
if (!PyUnicode_Check(item)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"can't filter unicode to unicode:"
|
|
" __getitem__ returned different type");
|
|
Py_DECREF(item);
|
|
goto Fail_1;
|
|
}
|
|
reslen = PyUnicode_GET_SIZE(item);
|
|
if (reslen == 1)
|
|
PyUnicode_AS_UNICODE(result)[j++] =
|
|
PyUnicode_AS_UNICODE(item)[0];
|
|
else {
|
|
/* do we need more space? */
|
|
Py_ssize_t need = j + reslen + len - i - 1;
|
|
|
|
/* check that didnt overflow */
|
|
if ((j > PY_SSIZE_T_MAX - reslen) ||
|
|
((j + reslen) > PY_SSIZE_T_MAX - len) ||
|
|
((j + reslen + len) < i) ||
|
|
((j + reslen + len - i) <= 0)) {
|
|
Py_DECREF(item);
|
|
return NULL;
|
|
}
|
|
|
|
assert(need >= 0);
|
|
assert(outlen >= 0);
|
|
|
|
if (need > outlen) {
|
|
/* overallocate,
|
|
to avoid reallocations */
|
|
if (need < 2 * outlen) {
|
|
if (outlen > PY_SSIZE_T_MAX / 2) {
|
|
Py_DECREF(item);
|
|
return NULL;
|
|
} else {
|
|
need = 2 * outlen;
|
|
}
|
|
}
|
|
|
|
if (PyUnicode_Resize(
|
|
&result, need) < 0) {
|
|
Py_DECREF(item);
|
|
goto Fail_1;
|
|
}
|
|
outlen = need;
|
|
}
|
|
memcpy(PyUnicode_AS_UNICODE(result) + j,
|
|
PyUnicode_AS_UNICODE(item),
|
|
reslen*sizeof(Py_UNICODE));
|
|
j += reslen;
|
|
}
|
|
}
|
|
Py_DECREF(item);
|
|
if (ok < 0)
|
|
goto Fail_1;
|
|
}
|
|
|
|
if (j < outlen)
|
|
PyUnicode_Resize(&result, j);
|
|
|
|
return result;
|
|
|
|
Fail_1:
|
|
Py_DECREF(result);
|
|
return NULL;
|
|
}
|
|
#endif
|