python: stdout PIPE on argparse not working

Vote count:

0

This is a snippet from a code written by my colleague. The code is for making a argument parser in python for some purpose.

if not sys.stdin.isatty():
    # Running in pipe mode
    pipe_mode = True
else:
    opts.add_argument('address', nargs='+')

What is happening is if we pipe stdin its not reading it. This is what I am trying to do:

subprocess.Popen(["nomadly-geocode", "-o", "json", values[1]],
                                                  stdout=subprocess.PIPE)

Since I am PIPE-ing stdout it should be working. But I am getting this error where it is not able to identify the arguments. ( The function works fine if we use command line to run it)

error:(lets say values[1] = Sydney)

usage: nomadly-cli-geocode [-h] [-o {parse,json,human}] [-u]
nomadly-cli-geocode: error: unrecognized arguments: Sydney   

asked 41 secs ago

phoenix

48

python: stdout PIPE on argparse not working