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A Token Bucket Rate Limiter in 30 Lines of Python (No Libraries)

This story is from 2026-10-23. It is preserved in the archive; the latest stories are on the live feed.

Every API you call eventually tells you to slow down. Sometimes it’s a polite 429. Sometimes it’s a ban. Before you reach for a library, it’s worth knowing how little code a solid rate limiter takes. The idea A token bucket is a simple mental model: A bucket holds up to capacity tokens. Tokens drip…

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  1. 2026-10-23 11:40 · DEV Community — AI
    A Token Bucket Rate Limiter in 30 Lines of Python (No Libraries)

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