[issue34690] Store startup modules as C structures for 20%+ startup speed improvement

[Nick Coghlan]

Nick Coghlan <ncoghlan at gmail.com> added the comment:

python-dev thread with more discussion of the patch: https://mail.python.org/pipermail/python-dev/2018-September/155188.html

Note that my comment above was based on a misunderstanding of what the patch does - the module level code still gets executed at import time, what's able to be avoided is the unmarshalling costs.

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<https://bugs.python.org/issue34690>
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