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h3-py: Uber’s H3 Hexagonal Hierarchical Geospatial Indexing System in Python#

PyPI version PyPI downloads conda version version

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ANNOUNCEMENT: v4.0.0 beta released!#

Install the latest beta version with pip install h3 --pre or with pip install 'h3==4.0.0b2'.
Feedback is welcome via Issues, Discussions, and Slack.

Python bindings for the H3 core library.


From PyPI:

pip install h3

From conda:

conda config --add channels conda-forge
conda install h3-py


>>> import h3
>>> lat, lng = 37.769377, -122.388903
>>> resolution = 9
>>> h3.latlng_to_cell(lat, lng, resolution)


We provide multiple APIs in h3-py.


h3-py wraps the H3 core library, which is written in C. The C and Python projects each employ semantic versioning, where versions take the form X.Y.Z.

The h3-py version string is guaranteed to match the C library string in both major and minor numbers (X.Y), but may differ on the patch (Z) number. This convention provides users with information on breaking changes and feature additions, while providing downstream bindings (like this one!) with the versioning freedom to fix bugs.

Use h3.versions() to see the version numbers for both h3-py and the C library. For example,

>>> import h3
>>> h3.versions()
{'c': '3.6.3', 'python': '3.6.1'}