Pass arguments to Python code

example_argparse.py

import argparse
parser = argparse.ArgumentParser()
# Positional argument 
parser.add_argument('echo', help='Response text')    
# Optional arguments
parser.add_argument('--value', type=int, default=0)
parser.add_argument('--flag', action='store_true', help='Flag, true if present')
args = parser.parse_args()

print(args.echo)
print(args.value)
if args.flag:
    print('Flag is here')
   
# Call as:
# $ python example_argparse.py abc
# Response
# abc

# Call as:
# $ python example_argparse.py abc --value=123 --flag
# Response
# abc
# 123
# Flag is here

simplest_args.py

# Simplest way
import sys
print(str(sys.argv[1])) #


# Call in the terminal as:
# $ python simple_arguments.py 123
# Reponse:
# 123