Mike Hansen

2 videos · 2 events · 2017–2019 · 1h 32m of video

Talks

0:48:40

Prefetching for Fun and Profit

DjangoCon US 2019 · October 18, 2019

Mike Hansen explains how Django’s prefetching avoids N+1 query problems: instead of fetching related data once per object, it batches related objects and associates them with the original instances. He traces the implementation from `prefetch_related()` through query evaluation, prefetchers, descriptors, the six values returned by…

0:43:34

Lightning Talks Day 3

DjangoCon US 2017 · September 7, 2017

Kelsey Hawley described Girls Who Code’s after-school clubs and seven-week summer program, where students learned Scratch, Python, Arduino, HTML, CSS, and JavaScript while building collaborative final projects and developing confidence. Eric Holscher explained that the Python Software Foundation is a community-run nonprofit that organizes PyCon,…

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