Easiest way to run python script with parameters on a web server

Thought this would be straightforward, but it's giving me a lot of trouble. What's the simplest way to run a python script with params on a web server? I've tried Node, but had a lot of trouble with spawning child processes, tried PHP but ran into a similar problem and just couldn't get exec to work for even the simplest script. Just spent a while trying Django, but that turned out to be far too involved. How can I do this without re-inventing the wheel?

For example, take the following request:

www.example.com/someprogram?foo=bar&bar=baz

And return the output from a script run with those params:

python someprogram.py foo bar

via 123