Re: Two Questions about Python on Windows

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From	Ian Kelly <ian.g.kelly@gmail.com>
Date	Thu, 3 Apr 2014 11:54:04 -0600
Subject	Re: Two Questions about Python on Windows
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On Apr 3, 2014 11:12 AM, "Walter Hurry" <walterhurry@gmail.com> wrote:
>
> Normally my Python development is done on FreeBSD and Linux. I know that
on *ix I simply have to make foo.py executable (the shebang line is
present, of course) to make it runnable.
>
> For my son's school assignment, I have to help him with Python for
Windows.
>
> As I understand it, on Windows a .py file is not executable, so I need to
run 'python foo py', or use a .pyw file.
>
> Question 1: Do I make a .pyw file simply by copying or renaming foo.py to
foo.pyw?

Yes. The only distinction between .py and .pyw is that the Python installer
associates the former with Python.exe and the latter with Pythonw.exe.
Pythonw runs the script without creating a console window for stdin/stdout.

> Secondly, on *ix, if there's an up-to-date .pyc in the right place and I
run foo.py, Python will automagically use foo.pyc.

I don't believe this is exactly correct. Python will only use a .pyc
automatically for imported modules. For a file specified on the command
line, Python won't try to second-guess the user as to which file they
want.  The file could have a .php extension, and Python will happily run it
if the contents are valid Python code.

> Question 2: Does it work the same way on Windows, and does this apply
both to foo.py and foo.pyw?

Yes.

Thread

Two Questions about Python on Windows Walter Hurry <walterhurry@gmail.com> - 2014-04-03 17:06 +0000
  Re: Two Questions about Python on Windows maxerickson@gmail.com - 2014-04-03 10:31 -0700
    Re: Two Questions about Python on Windows Tim Roberts <timr@probo.com> - 2014-04-05 14:57 -0700
  Re: Two Questions about Python on Windows Ian Kelly <ian.g.kelly@gmail.com> - 2014-04-03 11:54 -0600
  Re: Two Questions about Python on Windows Terry Reedy <tjreedy@udel.edu> - 2014-04-03 14:34 -0400
  Re: Two Questions about Python on Windows Ethan Furman <ethan@stoneleaf.us> - 2014-04-03 11:00 -0700
  Re: Two Questions about Python on Windows Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-04-03 21:15 +0100
  Re: Two Questions about Python on Windows Ian Kelly <ian.g.kelly@gmail.com> - 2014-04-03 16:41 -0600
  Re: Two Questions about Python on Windows Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-04-03 23:57 +0100

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