For list comprehensions, it's the same syntax, but in ()s rather than []s. A generator will be lazily evaluated (so until something tries to get a value out, nothing is computed) and can only be iterated through once. That's pretty much the only differences in that case.

There's more complex generator stuff you can do (ie. using the ``yield`` syntax inside functions), but unfortunately I don't know a good resource for that off the top of my head :).