shell script which opens python with arguments to python script

Question

I want to debug some Python code in PyCharm but the repository I got the code from uses a shell script of the form

python main.py arg1 ... argN

which is run from the command line. The main.py module in turn has a if __name__ == '__main__': part which uses argparse to parse the arguments passed via the script.

How can I write a Python script which also calls the main of main.py without touching main.py?

Answer 1

You don't need a script for that. You can Edit Run Configurations in Pycharm to emulate command line arguments passed to the script.

Follow these steps:

1. Open Edit Configurations...:

   

2. Make sure you edit the configuration of your main.py:

   

3. Then, simply add the command line arguments, just as you would in the command line, under the parameters field:

   

4. Press OK

5. Run regularly using the green arrow (or right-click and Run)

---

If you actually have that shell script, you can run it directly by adding a new configuration. On the Configurations window press the + on the top-left corner and choose Shell Script. Indicate the path and any option you want to pass and run.

Answer 2

For example: define new def main(): function and move all your if __name__ == '__main__': stuff there, then rewrite main.py as:

def main():
    <original "if __name__ == '__main__'" stuff>

if __name__ == '__main__':
    main()

, and then call main() function from an external python script.