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Keynote - Preventing, Finding, and Fixing Bugs On a Time Budget | Raymond Hettinger @ PyBay2018
SF Python

Raymond Hettinger's PyBay 2018 keynote on preventing, finding and fixing bugs under a time budget. He covers testing practice, type annotation tradeoffs and the limits of coverage metrics.
HN cites it in Python testing and code quality threads, including his point that 100% coverage proves little.
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