Question

def nearbin():
    parser = argparse.ArgumentParser(description = "choose near bin")
    parser.add_argument("-bin",  type=int,action = "store", default = "10", help="bin number")   
    args = parser.parse_args()   
    bin = args.bin 
    print bin
    return f(bin)


if __name__ == "__main__":
    nearbin()        

In command line, I can use “python test.py -bin 10” to run the program

If I want to import test in another python script and use function nearbin(bin) in another script, how can I do this?

Answer 1

My usual approach:

def nearbin(bin):
    ...

def main(args):
    parser = argparse.ArgumentParser(...)
    ...
    args = parser.parse_args(args)

    nearbin(args.bin)

if __name__ == '__main__':
    sys.exit(main(sys.argv[1:]))

This lets you support direct command-line invocation (./script.py -bin 20), invocation with command line args (main("-bin 20".split())), and programmatic invocation (nearbin(20)).