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Wed May 2 23:57:28 EDT 2018 · https://mail.python.org/pipermail/python-dev/2018-May/153339.html

Recently, I reported how stdlib slows down `import requests`.
https://github.com/requests/requests/issues/4315#issuecomment-385584974

For Python 3.8, my ideas for faster startup time are:

* Add lazy compiling API or flag in `re` module.  The pattern is compiled
when first used.
* Add IntEnum and IntFlag alternative in C, like PyStructSequence for
namedtuple.
   It will make importing `socket` and `ssl` module much faster.  (Both
module has huge enum/flag).
* Add special casing for UTF-8 and ASCII in TextIOWrapper.  When
application uses only
   UTF-8 or ASCII, we can skip importing codecs and encodings package
entirely.
* Add faster and simpler http.parser (maybe, based on h11 [1]) and avoid
using email module in http module.

[1]: https://h11.readthedocs.io/en/latest/

I don't have significant estimate how they can make `import requests`
faster, but I believe most of these ideas
are worth enough.

Regards,

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[Python-Dev] Python startup time