Temp directory not found when running on Windows.

[rudivs]

qgis2to3 failed with a FileNotFound exception when I tried to use it with my plugin. Looking at the code, it was because the path to the temp directory was hard-coded, and assumed a *nix OS. I fixed it for myself using import tempfile and f = open(f"{tempfile.gettempdir()}/missing", "a+") (patch file: 0001-fix-temp-directory-not-found-on-windows.zip).

Traceback (most recent call last):
File "qgis2to3", line 9, in
sys.exit(main('qgis_fixes'))
File "C:\OSGeo4W64\apps\Python36\lib\lib2to3\main.py", line 259, in main
options.processes)
File "C:\OSGeo4W64\apps\Python36\lib\lib2to3\refactor.py", line 703, in refactor
items, write, doctests_only)
File "C:\OSGeo4W64\apps\Python36\lib\lib2to3\refactor.py", line 296, in refactor
self.refactor_dir(dir_or_file, write, doctests_only)
File "C:\OSGeo4W64\apps\Python36\lib\lib2to3\refactor.py", line 316, in refactor_dir
self.refactor_file(fullname, write, doctests_only)
File "C:\OSGeo4W64\apps\Python36\lib\lib2to3\refactor.py", line 744, in refactor_file
*args, **kwargs)
File "C:\OSGeo4W64\apps\Python36\lib\lib2to3\refactor.py", line 351, in refactor_file
tree = self.refactor_string(input, filename)
File "C:\OSGeo4W64\apps\Python36\lib\lib2to3\refactor.py", line 383, in refactor_string
self.refactor_tree(tree, name)
File "C:\OSGeo4W64\apps\Python36\lib\lib2to3\refactor.py", line 457, in refactor_tree
new = fixer.transform(node, results)
File "C:\OSGeo4W64\apps\Python36\lib\site-packages\qgis2to3\codeporting\qgis_fixes\fix_pyqt.py", line 585, in transform
self.transform_member(node, results)
File "C:\OSGeo4W64\apps\Python36\lib\site-packages\qgis2to3\codeporting\qgis_fixes\fix_pyqt.py", line 519, in transform_member
f = open("/tmp/missing", "a+")
FileNotFoundError: [Errno 2] No such file or directory: '/tmp/missing'