Re: Python launcher problem

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From	ElChino <elchino@cnn.cn>
Newsgroups	comp.lang.python
Subject	Re: Python launcher problem
Date	Fri, 31 Jul 2015 18:30:52 +0200
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Zachary Ware wrote:

> On Jul 30, 2015 2:05 AM, "ElChino" <elchino@cnn.cn <mailto:elchino@cnn.cn>> wrote:
>  >
>  > If I in a cmd-shell (actually it is 4NT), do:
>  >   c:>py -3 -V & python3 -V
>  >
>  > I get:
>  >   Requested Python version (3) not installed  << ! from py -3 -V
>  >   Python 3.5.0b2   << ! from the 2nd cmd.
>  >
>  > What nonsense is this? I DO HAVE Python3 in my %PATH.
>  > A Registry setting gone haywire?
>
> Did you perchance rename the installed 'python.exe' to 'python3.exe'?
> That would be enough to break the launcher.  If you want a 'python3'
> command, you can copy 'python.exe' to 'python3.exe', but 'python.exe'
> needs to remain where it was.

That's what I did:

   ls -l f:/ProgramFiler/Python35/python*.exe
   -rwxr-xr-x 1 XX Administratorer 37664 May 31 04:18 f:/ProgramFiler/Python35/python.exe
   -rwxr-xr-x 1 XX Administratorer 37664 May 31 04:18 f:/ProgramFiler/Python35/python3.exe
   -rwxr-xr-x 1 XX Administratorer 37664 May 31 04:18 f:/ProgramFiler/Python35/pythonw.exe

They all depends on:
  f:\ProgramFiler\Python35\python35.dll

The one and only python35.dll on this box. And also on PATH.

I took Ben Finney's advice to heart. From:
   http://code.activestate.com/lists/python-list/684547/

<quote>
   Calling ‘python’ is now ambiguous, and with Python 2 slipping inexorably
   into the past, increasingly the ‘python’ command is the wrong choice for
   code that we want to survive in the future.

   I am seeing a growing call, with which I agree, to recommend explicitly
   calling ‘python2’ or ‘python3’ as commands.
</quote>

That's why I made that copy; even if some of you find that strange on Windows.
I'll investigate is there's an issue with the Registry later.

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Thread

Python launcher problem ElChino <elchino@cnn.cn> - 2015-07-30 09:03 +0200
  Re: Python launcher problem Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-07-30 09:39 +0200
  Re: Python launcher problem Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-07-30 10:01 +0100
  Re: Python launcher problem Terry Reedy <tjreedy@udel.edu> - 2015-07-30 05:41 -0400
    Re: Python launcher problem wxjmfauth@gmail.com - 2015-07-30 08:05 -0700
  Re: Python launcher problem ElChino <elchino@cnn.cn> - 2015-07-31 18:30 +0200

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