-
-
Save SLAPaper/9ef3699e5f76dc80c00bd2d405eef995 to your computer and use it in GitHub Desktop.
Python decorator for throttling function calls.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # https://gist.github.com/SLAPaper/9ef3699e5f76dc80c00bd2d405eef995 | |
| from datetime import datetime, timedelta | |
| from functools import wraps | |
| class throttle: | |
| """ | |
| Decorator that prevents a function from being called more than once every | |
| time period. | |
| To create a function that cannot be called more than once a minute: | |
| @throttle(minutes=1) | |
| def my_fun(): | |
| pass | |
| """ | |
| def __init__(self, *args, **kwargs): | |
| self.throttle_period = timedelta(*args, **kwargs) | |
| self.time_of_last_call = datetime.min | |
| def __call__(self, fn): | |
| @wraps(fn) | |
| def wrapper(*args, **kwargs): | |
| now = datetime.now() | |
| time_since_last_call = now - self.time_of_last_call | |
| if time_since_last_call > self.throttle_period: | |
| self.time_of_last_call = now | |
| return fn(*args, **kwargs) | |
| return wrapper |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment