Two Questions about Python on Windows

Mark Lawrence breamoreboy at yahoo.co.uk
Thu Apr 3 18:57:31 EDT 2014


On 03/04/2014 23:41, Ian Kelly wrote:
> On Thu, Apr 3, 2014 at 2:15 PM, Mark Lawrence <breamoreboy at yahoo.co.uk> wrote:
>> On 03/04/2014 18:54, Ian Kelly wrote:
>>>
>>>
>>> On Apr 3, 2014 11:12 AM, "Walter Hurry" <walterhurry at gmail.com
>>> <mailto:walterhurry at 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.
>>>
>>
>> Not with more modern versions of Python.
>>
>> c:\Users\Mark>assoc .py
>> .py=Python.File
>>
>> c:\Users\Mark>ftype Python.File
>> Python.File="C:\Windows\py.exe" "%1" %*
>
> Which ultimately calls some version of python.exe.
>
>> c:\Users\Mark>assoc .pyw
>> .pyw=Python.NoConFile
>>
>> c:\Users\Mark>ftype Python.NoConFile
>> Python.NoConFile="C:\Windows\pyw.exe" "%1" %*
>
> Which ultimately calls some version of pythonw.exe.
>
> I elided that detail because it wasn't relevant to the question at hand.
>

Yes, I regretted how badly I worded the above the second I hit the send 
button.

-- 
My fellow Pythonistas, ask not what our language can do for you, ask 
what you can do for our language.

Mark Lawrence

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