Python argparse with multiple occurance of an option

import argparse
parser = argparse.ArgumentParser()
parser.add_argument("prog_args", nargs='*')
parser.add_argument("-e", action='append')
args = parser.parse_args()
prog_args = args.prog_args
env = dict([e.split('=') for e in args.e])

print(f"Program args: {prog_args}")
print(f"Env options: {env}")

$ python3 test.py one two three -ek1=1 -e k2=foo
Program args: ['one', 'two', 'three']
Env options: {'k1': '1', 'k2': 'foo'}