pycharm debug help

[mg24]

Hi Team,

how to debug in pycharm ?
in a situation where I am accepting input value via command line argument.

But when I run python script via command line, I am not unable to debug.

import sys

def main(iCnt):
    for i in range(iCnt):  # I have put break point
        print(i)


if __name__ == "__main__":
    iCnt = int(sys.argv[1])
    # iCnt = 10
    main(iCnt)