[FIXED] How to access arguments on an imported flask script which uses argparse?

Issue

I have a python script say A which has some arguments specified using argparse in main.

.
.
def main(args):
  # use the arguments
.
.

if __name__ == '__main__':
  parser = argparse.ArgumentParser(..)
  parser.add_argument(
        '-c',
        '--classpath',
        type=str,
        help='directory with list of classes',
        required=True)
  # some more arguments
  args = parser.parse_args()

  main(args)

I've written another python script say B, which uses flask to run a web-application on localhost.

I'm trying to import the script A in B as:

from <folder> import A

How do I give in the arguments that are required in A for running script B? I want to run A inside script B by passing parameters via the main flask python script (viz., the script B).

I want to use all the functionality of A, but I'd rather not change the structure of A or copy-paste the same exact code inside B.

I've been trying something like:

@app.route(...)
def upload_file():
    A.main(classpath = 'uploads/')

but that doesn't seem to work. I'm taking inspiration from this SO answer, but I guess I'm missing something.

Does anybody have some idea on how to do this efficiently?

Solution

The answer which I've linked helped me to made it work for my code. Quite simply, efficient use of kwargs can help solve it.

.
.
def main(**kwargs):
  file_path_audio = kwargs['classpath']
  # use the other arguments
.
.

if __name__ == '__main__':
  parser = argparse.ArgumentParser(..)
  parser.add_argument(
        '-c',
        '--classpath',
        type=str,
        help='directory with list of classes',
        required=True)
  # some more arguments
  kwargs = parser.parse_args()

  main(**kwargs)

And for the flask script, simply use,

@app.route(...)
def upload_file():
    A.main(classpath = 'uploads/', ..) # have to add all the arguments with their defaults

I haven't found any other way than to state all the default arguments while using the main function.

Answered By - Abhishek Singh