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I benchmarked --help on a CLI with the ref implementation for PEP 810 (lazy imports). Because my CLI moved imports into functions just before they get used, I got a speedup of x1.3. Then I moved all the imports to the top like normal, and got a speedup of x2.9! hugovk.dev/blog/2025/la... #Python

hugovk.devThree times faster with lazy imports

Rémy

@xowap.dev

In the past I had achieved HUGE boosts on my Django app from switching almost everything to inline imports. Startup time went from like 10s to 100ms. Didn't know about this PEP, it's gonna be fucking amazing

19/10/25, 5:21 pm0 reposts1 like

Rémy

@xowap.dev

19 Oct 2025

For context, I got a networkx kink which essentially drags down almost every single one of my projects. For that specific instance I had on top pandas, numpy, xgboost and probably one or two other monsters.