Trim Python dependencies #518
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jonmmease
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Nov 16, 2024
* remove dep on psutil, pandas, pyarrow * Add test that polars usage doesn't import pandas/pyarrow * Add pandas/pyarrow to test deps
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This PR drops the hard dependencies on pandas and pyarrow, and adds a test that using Altair+VegaFusion with polars does not trigger an import of pandas or pyarrow.
I also removed the psutil dependency by implementing the system lookup info in rust using the
sysinfocrate. Now thevegafusionPython library has only three dependencies.narwhalsfor abstracting over DataFrames (185.3 kB wheel, pure Python)arro3-corefor basic Arrow processing in Python (2-4MB, compiled with wheels available for more platforms that VegaFusion currently builds for. In contrast, thepyarrowwheel sizes vary across platforms from 25MB to 40MB).packagingfor theVersionobject (54.0 kB wheel, pure Python)narwhalsandpackagingare also dependencies of Altair, so VegaFusion will now add only itself andarro3-coreas deps.