[Tutor] Trouble installing Python on Win7 (not a valid Win 32 app)

Marc Tompkins marc.tompkins at gmail.com
Mon Nov 14 23:18:42 CET 2011

On Mon, Nov 14, 2011 at 2:08 PM, Wayne Watson
<sierra_mtnview at sbcglobal.net>wrote:

> I had py 2.5.2 installed (Yes, I know it's old) on my Win 7 64-bit PC
> earlier this year, but it began to fail back in June.  I tried a
> uninstall/install, but that got me nowhere.  I tried again yesterday.
> Uninstalled, then puzzled over whether I should delete the remaining
> python25 folder.  There were a few files in it. Nothing that looked
> relevant of use any longer.  I did notice several Remove....exe files for
> numpy, scipy and others.  Rather than chance messing up python25, I renamed
> it, then installed 2.5.2.
> I found that every time I tried to activate a py file, or open it in IDLE,
> I would get an error that said something like this:
> c:\Users\blah\...\junk.py is not a valid Win 32 app. (or idle.pyw)
> Comments?
> Sounds like a problem with Windows' file associations / default programs
Go to Control Panel / Programs / Default Programs / Set your default
programs.  I'm guessing that ".py" and ".pyw" are still set to be opened by
a Python installation that isn't there anymore.  Fix that, and you should
be golden.
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