In Python, if you want to programmatically import a module, you can do:

module = __import__('module_name')

If you want to import a submodule, you would think it would be a simple matter of:

module = __import__('module_name.submodule')

Of course, this doesn't work; you just get module_name again. You have to do:

module = __import__('module_name.submodule', fromlist=['blah'])

Why? The actual value of fromlist don't seem to matter at all, as long as it's non-empty. What is the point of requiring an argument, then ignoring its values?

Most stuff in Python seems to be done for good reason, but for the life of me, I can't come up with any reasonable explanation for this behavior to exist.