Using the Vendored Argon2¶
python -m pip install argon2_cffi
should be all it takes.
argon2_cffi vendors Argon2’s C code by default, it can lead to complications depending on the platform.
The C code is known to compile and work on all common platforms (including x86, ARM, and PPC). On x86, an SSE2-optimized version is used.
If something goes wrong, please try to update your
python -m pip install -U cffi pip setuptools
Overall this should be the safest bet because
argon2_cffi has been specifically tested against the vendored version.
Binary wheels for macOS, Windows, and Linux are provided on PyPI.
With a recent-enough
setuptools, they should be used automatically.
A working C compiler and CFFI environment are required.
If you’ve been able to compile Python CFFI extensions before,
argon2_cffi should install without any problems.
Using a System-wide Installation of Argon2¶
If you set
1 (and only
argon2_cffi will not build its bindings.
However binary wheels are preferred by
pip and Argon2 gets installed along with
Therefore you also have to instruct
pip to use a source distribution:
env ARGON2_CFFI_USE_SYSTEM=1 \ python -m pip install --no-binary=argon2_cffi argon2_cffi
This approach can lead to problems around your build chain and you can run into incompatabilities between Argon2 and
argon2_cffi if the latter has been tested against a different version.
It is your own responsibility to deal with these risks if you choose this path.