Command prompt not shown when running Python script with subprocess on Windows

[ps16thypresenceisfullnessofjoy at gmail.com]

I have written a Python script with a wxPython GUI that uses subprocess.Popen to open a list of files that the user provides. One of my users would like to be able to run a Python script with my application. The Python script he is trying to run uses the command line and gets keyboard input from the user several times.

The problem is that if the Python script is run on Windows with subprocess.Popen, no command prompt is shown (my GUI application is a .pyw file). The user's script runs silently but then does not quit because it is waiting for input, but there is no way for the input to be given, since there is no command prompt visible.

I think this may be related to the fact that I am calling subprocess.Popen with shell=True. I tried calling it with shell=False (the default), but then I got an error that the file is not a valid Win32 application.

I would appreciate any help with this problem.

-- Timothy