Strings comparison

[Dusausoy Bruno]

Hi,

I have a problem with strings comparison.
I've pasted the example of the getopt module and I've removed the long
options because I don't need them.
But when I run it, Python gives me errors:

./test.py -h
Traceback (most recent call last):
  File "./test.py", line 24, in ?
    main()
  File "./test.py", line 16, in main
    if o in ("-h"):
TypeError: 'in <string>' requires character as left operand

Here is the code :

import getopt, sys

def usage():
    print "Ok"

def main():
    try:
        opts, args = getopt.getopt(sys.argv[1:], "ho:")
    except getopt.GetoptError:
        # print help information and exit:
        usage()
        sys.exit(2)
    output = None
    for o, a in opts:
        if o in ("-h"):
            usage()
            sys.exit()
        if o in ("-o"):
            output = a
    # ...

if __name__ == "__main__":
    main()

I'm sure I've made a string comparison mistake but I don't know which
one. Can someone help me ?

Thanks a lot
-- 
Dusausoy Bruno
bruno.dusausoy at skynet.be
-= Bleue est la mer, blanche est la mort =-