Why do I need to put two options for this script to print the path?
if I just specify the option and argument...
$ python <script>.py -p xxxx
Usage: <script>.py [-p dir] [--part=dir]
<script>.py: error: No options specified
So I need to give it two arguments...
$ python <script>.py --part xxxx y
xxxx
Desired output:
$ python <script>.py --part xxxx
xxxx
$ python <script>.py --part xxxx y
Usage: <script>.py [-p dir] [--part=dir]
<script>.py: error: some message
----
#/usr/bin/python
import optparse
def main():
parser = optparse.OptionParser(usage="%prog [-p dir] [--part=dir] ",
version="%prog 1.0")
parser.add_option( "-p", "--part", dest="directory",
help="process target directory", metavar="dir")
(options, args) = parser.parse_args()
if len(args) != 1:
parser.error("No options specified")
path = options.directory
print path
if __name__ == "__main__":
main()
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