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Edit: /opt/gsutil/third_party/charset_normalizer/docs/community/speedup.rst

Optional speedup extension
==========================

Why?
----

charset-normalizer will always remain pure Python, meaning that a environment without any build capabilities will
run this program without any additional requirements.

Nonetheless, starting from the version 3.0 we introduce and publish some platform specific wheels including a
pre-built extension.

Most of the time is spent in the module `md.py` so we decided to "compile it" using Mypyc.

(1) It does not require to have a separate code base
(2) Our project code base is rather simple and lightweight
(3) Mypyc is robust enough today
(4) Four times faster!

How?
----

If your platform and/or architecture is not served by this swift optimization you may compile it easily yourself.
Following those instructions (provided you have the necessary toolchain installed):

export CHARSET_NORMALIZER_USE_MYPYC=1
    pip install mypy build wheel
    pip install charset-normalizer --no-binary :all:

How not to?
-----------

You may install charset-normalizer without the speedups by directly using the universal wheel
(most likely hosted on PyPI or any valid mirror you use) with ``--no-binary``.

E.g. when installing ``requests`` and you don't want to use the ``charset-normalizer`` speedups, you can do:

pip install requests --no-binary charset-normalizer

When installing `charset-normalizer` by itself, you can also pass ``:all:`` as the specifier to ``--no-binary``.

pip install charset-normalizer --no-binary :all:

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