> I have a Python script which wants to start a subprocess and wait for
> it to finish.

> However I would like to have NO command window popping up during
> execution.

>> I have a Python script which wants to start a subprocess and wait for
>> it to finish.

>> However I would like to have NO command window popping up during
>> execution.

> You need to specify the hide parameter for windows.

> import subprocess
> kwargs = {}
> if subprocess.mswindows:
>    su = subprocess.STARTUPINFO()
>    su.dwFlags |= subprocess.STARTF_USESHOWWINDOW
>    su.wShowWindow = subprocess.SW_HIDE
>    kwargs['startupinfo'] = su
> process = subprocess.Popen( (r'c:\python25\python.exe',
>    r'd:\projekte\bar.py'), **kwargs )

>>> I have a Python script which wants to start a subprocess and wait for
>>> it to finish.

>>> However I would like to have NO command window popping up during
>>> execution.
>> You need to specify the hide parameter for windows.

>> import subprocess
>> kwargs = {}
>> if subprocess.mswindows:
>>    su = subprocess.STARTUPINFO()
>>    su.dwFlags |= subprocess.STARTF_USESHOWWINDOW
>>    su.wShowWindow = subprocess.SW_HIDE
>>    kwargs['startupinfo'] = su
>> process = subprocess.Popen( (r'c:\python25\python.exe',
>>    r'd:\projekte\bar.py'), **kwargs )

> Interestingly, none of that appears to be documented.

> Cheers,
> Chris
> --
> http://blog.rebertia.com

>> On Thu, Oct 29, 2009 at 3:25 AM, Rüdiger Ranft <_r...@web.de> wrote:

>>> klausfpga schrieb:

>>>> Hi,

>>>> I have a Python script which wants to start a subprocess and wait for
>>>> it to finish.

>>>> However I would like to have NO command window popping up during
>>>> execution.

>>> You need to specify the hide parameter for windows.

>>> import subprocess
>>> kwargs = {}
>>> if subprocess.mswindows:
>>>   su = subprocess.STARTUPINFO()
>>>   su.dwFlags |= subprocess.STARTF_USESHOWWINDOW
>>>   su.wShowWindow = subprocess.SW_HIDE
>>>   kwargs['startupinfo'] = su
>>> process = subprocess.Popen( (r'c:\python25\python.exe',
>>>   r'd:\projekte\bar.py'), **kwargs )

>> Interestingly, none of that appears to be documented.

> Except for here:
> http://msdn.microsoft.com/en-us/library/ms682425%28VS.85%29.aspx

> I was referring to the following bits of the subprocess module used in
> the above code:

> none of which are mentioned in the module's docs:
> http://docs.python.org/dev/py3k/library/subprocess.html

>>> Except for here:
>>> http://msdn.microsoft.com/en-us/library/ms682425%28VS.85%29.aspx

>> I was referring to the following bits of the subprocess module used in
>> the above code:

> Me too actually :-)

>> subprocess.mswindows
>> subprocess.STARTUPINFO()
>> subprocess.STARTF_USESHOWWINDOW
>> subprocess.SW_HIDE

>> none of which are mentioned in the module's docs:
>> http://docs.python.org/dev/py3k/library/subprocess.html

> Since this is platform specific stuff I would argue that it has no business
> being repeated, although a link to where it is documented elsewhere would
> have been nice.

> > Hi,

> > I have a Python script which wants to start a subprocess and wait for
> > it to finish.

> > However I would like to have NO command window popping up during
> > execution.

> You need to specify the hide parameter for windows.

> import subprocess
> kwargs = {}
> if subprocess.mswindows:
>     su = subprocess.STARTUPINFO()
>     su.dwFlags |= subprocess.STARTF_USESHOWWINDOW
>     su.wShowWindow = subprocess.SW_HIDE
>     kwargs['startupinfo'] = su
> process = subprocess.Popen( (r'c:\python25\python.exe',
>     r'd:\projekte\bar.py'), **kwargs )

> I'll try that immediately tomorrow, when working again on a windows
> host.

> Good to know, that the Python API supports this.
> though this feature was not that easy to be found in the doc.