Python at Scale: Strict Modules

Welcome to the third post in our series on Python at scale at Instagram! As we mentioned in the first post in the series, Instagram Server… Read more

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Be Careful with Python’s New-Style String Format

This should have been obvious to me for a longer time, but until earlier today I did not really realize the severity of the issues caused by str.format on untrusted user input. It came up as a way to bypass the Jinja2 Sandbox in a way that would permit r...

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