Any command-line script in Python that uses a significant codebase or a significant number of libraries. For me the main example is Mercurial -- it takes about

Any command-line script in Python that uses a significant codebase or a significant number of libraries. For me the main example is Mercurial -- it takes about 200ms (on my Mac) to run even a trivial command, and that's plenty long enough to get in the way. It's about 60ms on my other laptop (Linux), and that's just at the threshold of noticeable and annoying.