python getopt


import getopt, sys

def main():
try:
opts, args = getopt.getopt(sys.argv[1:], "ho:v", ["help", "output="])
except getopt.GetoptError, err:
# print help information and exit:
print str(err) # will print something like "option -a not recognized"
usage()
sys.exit(2)
output = None
verbose = False
for o, a in opts:
if o == "-v":
verbose = True
elif o in ("-h", "--help"):
usage()
sys.exit()
elif o in ("-o", "--output"):
output = a
else:
assert False, "unhandled option"
# ...

if __name__ == "__main__":
main()


"ho:v" 允許-h -o -v, 其中-o需要參數(後面多:)
["help", "output="] 允許--help --output, 其中--output需要參數(後面多=)

http://docs.python.org/library/getopt.html