New submission from Guido van Rossum <gu...@python.org>:
I have 3.9 and 3.10 installed on my Windows box. The py launcher runs Python 3.10 when invoked on a script starting with a shebang line #!/usr/bin/env python even though the default without a script is 3.9, as shown here: PS C:\Users\gvanrossum\peps> py -0 Installed Pythons found by C:\WINDOWS\py.exe Launcher for Windows -3.9-64 * -3.8-64 -3.7-64 -3.6-64 -3.5-64 -3.4-64 -3.10-64 PS C:\Users\gvanrossum\peps> py Python 3.9.0 (tags/v3.9.0:9cf6752, Oct 5 2020, 15:34:40) [MSC v.1927 64 bit (AMD64)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> ^Z PS C:\Users\gvanrossum\peps> This caused some confusion since I was running a script that imported a package that I had installed in the default interpreter but not in 3.10. I am not using a virtual environment (yet :-). Without the shebang line the 3.9 interpreter is used. (Full disclosure: the script was pep2html.py, and the package was docutils.) ---------- assignee: steve.dower components: Windows messages: 381590 nosy: gvanrossum, paul.moore, steve.dower, tim.golden, zach.ware priority: normal severity: normal stage: needs patch status: open title: Windows py launcher default for shebang line is surprising versions: Python 3.10 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue42430> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
