Message 135756 - Python tracker

Issue fixed in Python 3.1, 3.2, 3.3.

Thanks to Arfrever, I realized that this issue not only concerns the compilation of Python itself with a non-ASCII prefix (issue #6011), but the installation of any Python script containing a non-ASCII character. So I also fixed it in Python 3.1. I replaced os.fsencode(name) by name.encode(sys.getfilesystemencoding(), 'surrogateescape') in 3.1.