[wingide-users] Using subprocess in scripts
support at wingware.com
Mon Jan 1 11:09:07 MST 2007
Michael Foord wrote:
> I would like to use 'subprocess' to launch commands. The 'subprocess'
> module isn't included in the Wing 'Python24.zip', so I can't use it. Any
> reason why it isn't available ?
The subprocess module isn't included because Wing doesn't use in
internally and Python24.zip only includes the python library modules
that Wing uses. We should probably expand what is included so that
scripts may use other modules.
Ordinarily, I'd suggest that you use the AsyncExecuteCommandLine method
on the wingapi Application class, but I think you want to create a new
cmd.exe window each time you run the command (actually, you probably
don't want to, but it's probably the easiest option to get a console
working). Given that, I came up with the following:
from wingutils import spawn
editor = app.GetActiveEditor()
filename = editor.GetDocument().GetFilename()
directory, theFile = os.path.split(filename)
env = app.GetProject().GetEnvironment(filename)
cmd = env.get('COMSPEC', 'cmd.exe')
argv = [cmd, '/c', 'run_python.bat', filename]
spawn.win32_start_process(cmd, argv, env=env, child_pwd=directory,
It uses Wing's internal spawn module to get an api to create a new
console. I tried using os.spawn* functions, but couldn't determine how
to create a console though I didn't try for very long. Also, the
command gets the environment from the project so that modifications in
the project properties are picked up. This was a flaw in using
os.system because os.system uses Wing's internal environment, which is
not the same as the environment specified in project properties or the
environment that Wing is launched in.
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