[issue45020] Freeze all modules imported during startup.

[Guido van Rossum]

Guido van Rossum <guido at python.org> added the comment:

The plot thickens. By searching my extensive GMail archives for Jeethu Rao I found an email from Sept. 14 to python-dev by Larry Hastings titled "Store startup modules as C structures for 20%+ startup speed improvement?"

It references an issue and a PR:

    https://bugs.python.org/issue34690
    https://github.com/python/cpython/pull/9320

Here's a link to the python-dev thread:

    https://mail.python.org/pipermail/python-dev/2018-September/155188.html

There's a lot of discussion there. I'll try to dig through it.

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