pythonw

How to avoid console window with .pyw file containing os.system call?

You should use subprocess.Popen class passing as startupinfo parameter’s value instance of subprocess.STARTUPINFO class with dwFlags attribute holding subprocess.STARTF_USESHOWWINDOW flag and wShowWindow attribute holding subprocess.SW_HIDE flag. This can be inferred from reading lines 866-868 of subprocess.py source code. It might be necessary to also pass subprocess.CREATE_NEW_CONSOLE flag as a value of creationflags parameter as you … Read more

Running a process in pythonw with Popen without a console

From here: import subprocess def launchWithoutConsole(command, args): “””Launches ‘command’ windowless and waits until finished””” startupinfo = subprocess.STARTUPINFO() startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW return subprocess.Popen([command] + args, startupinfo=startupinfo).wait() if __name__ == “__main__”: # test with “pythonw.exe” launchWithoutConsole(“d:\\bin\\gzip.exe”, [“-d”, “myfile.gz”]) Note that sometimes suppressing the console makes subprocess calls fail with “Error 6: invalid handle”. A quick fix is … Read more