How to use argparse to grab command line arguments in Python?

Question

I want to be able to save integer values after an option is passed through the command line. Ideally it would be:

python thing.py -s 1 -p 0 1 2 3 -r/-w/-c

• -s - store the following integer

• -p - store the following integers

The final part can be only one of the three options ( -r , -w , or -c ), depending on what it is I need to do.

I've been trying to read tutorials but they all use the same two examples that don't explain how to store integers after a -option .

Answer 1

>>> import argparse
>>> parser = argparse.ArgumentParser()
>>> parser.add_argument('-s', type=int)
[...]
>>> parser.add_argument('-p', type=int, nargs='*')
[...]
>>> group = parser.add_mutually_exclusive_group(required=True)
>>> group.add_argument('-r', action='store_true')
[...]    
>>> group.add_argument('-w', action='store_true')
[...]    
>>> group.add_argument('-c', action='store_true')
[...]    
>>> parser.parse_args("-s 1 -p 0 1 2 3 -r".split())
Namespace(c=False, p=[0, 1, 2, 3], r=True, s=1, w=False)