Reference library

Reliability & rate limiting

Retries, exponential backoff, circuit breakers, token buckets, and idempotent handlers.

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Reliability & rate limiting easy

Rate Limiting in Python with a Sliding Window

A beginner-friendly dataclass-based sliding window rate limiter that controls how many calls are allowed per time window.

rate-limiting sliding-window dataclass
Python 
import time
from dataclasses import dataclass


@dataclass
class RateLimiter:
    max_calls: int
    window_seconds: float = 1.0

    def __post_init__(self):
        self.calls = []
        self._start = time.monotonic()

    def _update(self, now):
        self.calls = [t for t in self.calls if now - t < self.window…
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Reliability & rate limiting — Python code examples

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