Add a “Usage note”?

[samwyse]

Sometimes you need to limit API calls from another package that you do not control. In this case, monkey patching the API may be the best option. But where? In the requests package, calls to .get, .head, and other methods of a Request() object are funneled to self.request(), so that is one possibility.  However, that method creates a temporary Session object and sends all invocations through it. As a result, the best way to limit all API calls is:

throttled = limits(calls=15, period=FIFTEEN_MINUTES)
Session.request = throttled(Session.request)