[issue43607] urllib's request.pathname2url not compatible with extended-length Windows file paths
New submission from D Levine : Windows file paths are limited to 256 characters, and one of Windows's prescribed methods to address this is to prepend "\\?\" before a Windows absolute path (see: https://docs.microsoft.com/en-us/windows/win32/fileio/maximum-file-path-limitation) urllib.request.pathname2url raises an error on such paths as this function calls nturl2path.py's pathname2url function which explicitly checks that the number of characters before the ":" in a Windows path is precisely one, which is, of course, not the case if you are using an extended-length path (e.g. "\\?\C:\Python39"). As a result, urllib cannot handle pathname2url conversion for some valid Windows paths. -- components: Windows messages: 389415 nosy: levineds, paul.moore, steve.dower, tim.golden, zach.ware priority: normal severity: normal status: open title: urllib's request.pathname2url not compatible with extended-length Windows file paths type: crash versions: Python 3.9 ___ Python tracker <https://bugs.python.org/issue43607> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue43607] urllib's request.pathname2url not compatible with extended-length Windows file paths
Change by D Levine : -- type: crash -> behavior ___ Python tracker <https://bugs.python.org/issue43607> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue43607] urllib's request.pathname2url not compatible with extended-length Windows file paths
D Levine added the comment: I really meant 255 characters not 256 because I was leaving three for ":/". I suppose the most reasonable behavior is to strip out the "\\?\" before attempting the conversion as the path is sensible and parsable without that, as opposed to the current behavior which is to crash. The practical benefit is to permit the function to work on a wider range of inputs than currently is possible for essentially no cost. -- ___ Python tracker <https://bugs.python.org/issue43607> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue43607] urllib's request.pathname2url not compatible with extended-length Windows file paths
D Levine added the comment: I think that would make the most sense, yes. -- ___ Python tracker <https://bugs.python.org/issue43607> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
