Python Cmd Tab Completion Problems

I've got an application I'm currently working on for our company. Its currently built around Python's Cmd module, and features tab-completion for a number of tasks. For some reaso

Solution 1:

Check if the environment variable PYTHONSTARTUP is set properly. It should point to a script which in turn needs to do sth like this:

try:
    import readline
except ImportError:
    sys.stdout.write("No readline module found, no tab completion available.\n")
else:
    import rlcompleter
    readline.parse_and_bind('tab: complete')

Maybe (some part of) this is only done properly on the one working machine?

Maybe the readline module is available only on the one working machine?