STINNER Victor <victor.stin...@haypocalc.com> added the comment: > But... there is no os.unsetenv on Windows!
Correct, even unsetenv() doesn't exist on Windows: putenv() can be used to unset a variable using an empty value. And it's exactly what Python does. It is confusing because posix_unsetenv() is not build on Windows, but it contains code specific for Windows. While testing del os.environ[key], I found another bug: del os.environ['x'*50000] does crash Python on Windows. Attached patch (for Python 3.3) does: - Remove the Windows specific code from posix_unsetenv() - Check if unsetenv() failed on UNIX - Check environment variable length on Windows The Windows bug does affect Python 2.7 too. "Check if unsetenv() failed on UNIX" change may be skipped on Python 2.7 and 3.2. ---------- keywords: +patch title: os.unsetenv() on Windows should not use UTF-8 -> del os.environ[key] ignores errors versions: +Python 2.7 Added file: http://bugs.python.org/file23714/unsetenv.patch _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue13415> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
