https://bugzilla.tianocore.org/show_bug.cgi?id=1069 The ByteArray() method returns a string with the hex bytes of a PCD value. Make sure the string is always encoded as a string, so it can be used to build a complete PCD statement string and be written out to a file. This change is required for Python 3.x compatibility. Cc: YanYan Sun <yanyan.sun@intel.com> Cc: Yonghong Zhu <yonghong.zhu@intel.com> Cc: Liming Gao <liming.gao@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Yonghong Zhu <yonghong.zhu@intel.com>