How to parse file path arguments in Python

To parse file path arguments in Python, you can use the argparse module. Here’s an example:

import argparse

parser = argparse.ArgumentParser()
parser.add_argument('filename', help='path to file to be processed')
args = parser.parse_args()

with open(args.filename, 'r') as f:
  # process the file here...

In this example, we first import the argparse module. We then create an argument parser object using the ArgumentParser class. We add an argument named ‘filename’ using the add_argument() method, which specifies that the user will provide the path to the file to be processed. Finally, we use the parse_args() method to parse the command-line arguments, and access the file path provided by the user as args.filename.

You can add additional arguments to the parser using add_argument(), specifying them by their flags (e.g. -o or --output) and providing a help string. You can also specify the type of the argument (e.g. int, float, or str) using the type argument.