[Tutor] passing named arguments through command line

[Robert Sokolewicz]

I have a function with optional arguments x, y and I would like to pass y
or z using a named variable through the command line. Inside a python
script main(y=3) would work, but I have trouble passing y=3 as an argument
in command line.

I have tried the following:

----
import sys

def main(x=1, y=2):
   print x
   print y

if __name__ == '__main__':
  main(*sys.argv[1:])

-----

from my terminal I get:

$ python script.py
1
2
$ python script.py y=3
y=3
2

whereas I would like the following to happen:
$ python script.py y=3
1
3

Is this doable in any convenient way?

thanks in advance!

-Robert
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