python - path to a directory as argparse argument -

problem: want write directory's path user's input in add.argument of argumentparser().

so far: have written

import argparse  parser = argparse.argumentparser() parser.add_argument('path', option = os.chdir(input("paste here path biog.txt file:")), help= 'paste path biog.txt file') 

any idea's, ideal solution of problem ?

you can use like:

import argparse, os  parser = argparse.argumentparser() parser.add_argument('--path', help= 'paste path biog.txt file') args = parser.parse_args()   os.chdir(args.path) # change directory argument passed '--path'  print os.getcwd() 

pass directory path argument --path while running script. also, check official document correct usage of argparse: https://docs.python.org/2/howto/argparse.html