[Python-Dev] Python startup time
Recently, I reported how stdlib slows down `import requests`.
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
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
* Add faster and simpler http.parser (maybe, based on h11 ) and avoid
using email module in http module.
I don't have significant estimate how they can make `import requests`
faster, but I believe most of these ideas
are worth enough.