https://bugzilla.wikimedia.org/show_bug.cgi?id=68315

Bug ID: 68315 Summary: config default editor on Windows detection fails Product: Pywikibot Version: core (2.0) Hardware: All OS: All Status: NEW Severity: normal Priority: Unprioritized Component: General Assignee: Pywikipedia-bugs@lists.wikimedia.org Reporter: jayvdb@gmail.com Web browser: --- Mobile Platform: ---

Steps to reproduce (core): 1. Set up an editor for .txt 2. Run python pwb.py pywikibot/config2.py

Expected results: The 'editor' config variable should be set to the editor set up for .txt. i.e. editor='C:\Path\to\editor.exe'

Actual results: editor=None

pywikibot configuration tries to automatically detect a text editor to use, using the Windows registry key Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts.txt\OpenWithProgids

That exists for WinXP and later versions, and documentation can be found here: http://msdn.microsoft.com/en-us/library/bb166549.aspx http://msdn.microsoft.com/en-us/library/bb165967.aspx

As can be seen in that documentation, the key name is relevant, and the key value is always REG_NONE (zero-length binary value)

However to find the appropriate progid within that key, pywikbot uses _winreg.EnumValue(key, 1)

As can be seen at https://docs.python.org/2/library/_winreg.html#_winreg.EnumValue , the '1' in the second parameter returns "An object that holds the value data, and whose type depends on the underlying registry type".

Changing it to _winreg.EnumValue(key, 0) causes _winreg to return "A string that identifies the value name" and suddenly the detection works correctly.

This has existed since the first version in compat/ in 2007 https://git.wikimedia.org/blobdiff/pywikibot%2Fcompat/36a702559c94c0b12f5cc2...

However, it doesnt really work as one would expect, since it hooks onto .txt, rather than .py