;
; This is an example of how a Python Launcher .ini file is structured.
; If you want to use it, copy it to py.ini and make your changes there,
; after removing this header comment.
; This file will be removed on launcher uninstallation and overwritten
; when the launcher is installed or upgraded, so don't edit this file
; as your changes will be lost.
;
[defaults]
; Uncomment out the following line to have Python 3 be the default.
;python=3
[commands]
; Put in any customised commands you want here, in the format
; that's shown in the example line. You only need quotes around the
; executable if the path has spaces in it.
;
; You can then use e.g. #!myprog as your shebang line in scripts, and
; the launcher would invoke e.g.
;
; "c:\Program Files\MyCustom.exe" -a -b -c myscript.py
;
;myprog="c:\Program Files\MyCustom.exe" -a -b -c
Thus, on my system I made a py.ini file under c:\windows\ where py.exe exists, with the following contents:
[defaults]
python=3
Now when you Double-click on a .py file, it will be run by the new default version. Now I'm only using the Shebang #! python2 on my old scripts.