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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: