Upgrade pypsa to 1.0#80
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nick-gorman merged 7 commits intomainfrom Apr 10, 2026
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EllieKallmier
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Apr 10, 2026
PyPSA 1.0 changed component DataFrame index names from component-specific
names ("Generator", "Link", "StorageUnit") to a universal "name". Updated
all reset_index() + rename patterns in results extraction code and tests
to use the new index name.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Changed mock DataFrames from set_index("Link") to set_index("name")
to accurately reflect pypsa 1.0 component DataFrame index naming.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace network.import_from_netcdf() with pypsa.Network(path) to match the pypsa 1.0 API. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
pandas DataFrame.reindex() loses the MultiIndex.name attribute when old and new index values are identical. This causes pypsa 1.0's xarray-based model builder to create a 'dim_0' dimension instead of 'snapshot', crashing define_spillage_variables(). Restore the name after setting snapshots, and pass multi_investment_periods=True to create_model(). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Tests that update_network_timeseries works when operational snapshots have identical values to capacity expansion snapshots, which triggers a pandas reindex bug that loses MultiIndex.name and breaks pypsa 1.0's xarray model builder. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
The pypsa 1.0 upgrade removes the shapely <2.1 constraint that previously blocked 3.14 (shapely <2.1 lacked 3.14 wheels). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
shapely <2.1 lacks pre-built wheels for Python 3.14, causing build failures from missing geos_c.h. pypsa 1.0 no longer constrains shapely<2.1 so we can now require >=2.1.0. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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new index name:
drops the MultiIndex.name attribute. pypsa 1.0's xarray-based optimization model builder requires snapshots.name == "snapshot" to create correctly named dimensions — without it, xarray produces a dim_0 dimension instead and
define_spillage_variables() fails with KeyError: "'snapshot' is not a valid dimension". Added a workaround to restore the name after setting snapshots.