New submission from virtualnobi <virtualn...@zoho.com>:

Recently installed Python 3.8 (from 2.7) on Windows 10, and all my scripts 
didn't work anymore. For some strange reason 

> python -s script.py args

would put the args into sys.argv[], while

> script.py args

would only show the script in sys.argv[]. I found this report which fixed the 
problem: 

https://stackoverflow.com/questions/15281951/sys-argv-contents-when-calling-python-script-implicitly-on-windows

(Basically, the .py(w) association in the registry need an additional '%*' 
parameter to pass the script parameters.)

So I assume the Python 3 Windows installer overwrote my earlier registry 
associations. 

The other way the problem happened could be that the Python 3 installer did not 
change the registry assocation to 3.8, and I did this manually. I verified that 
setting a "default program" for windows will put the deficient association 
(without argument passing) into the registry. 

Either way, I would expect that after installing Python 3.8, my scripts would 
really run with 3.8, and with their arguments. :-) 

Danke & Grüße von 
nobi

----------
components: Installation, Windows
messages: 366192
nosy: paul.moore, steve.dower, tim.golden, virtualnobi, zach.ware
priority: normal
severity: normal
status: open
title: Fix .py(w) file association with Pyhon 3 Windows installer
type: behavior
versions: Python 3.8

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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue40253>
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