Port negative frequency fix for pandas.date_range to cftime_range
#8999
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* main: Avoid auto creation of indexes in concat (#8872) Fix benchmark CI (#9013) Avoid extra read from disk when creating Pandas Index. (#8893) Add a benchmark to monitor performance for large dataset indexing (#9012) Zarr: Optimize `region="auto"` detection (#8997) Trigger CI only if code files are modified. (#9006) Fix for ruff 0.4.3 (#9007) Port negative frequency fix for `pandas.date_range` to `cftime_range` (#8999) Bump codecov/codecov-action from 4.3.0 to 4.3.1 in the actions group (#9004) Speed up localize (#8536) Simplify fast path (#9001) Add argument check_dims to assert_allclose to allow transposed inputs (#5733) (#8991) Fix syntax error in test related to cupy (#9000)
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* backend-indexing: Trigger CI only if code files are modified. (pydata#9006) Enable explicit use of key tuples (instead of *Indexer objects) in indexing adapters and explicitly indexed arrays (pydata#8870) add `.oindex` and `.vindex` to `BackendArray` (pydata#8885) temporary enable CI triggers on feature branch Avoid auto creation of indexes in concat (pydata#8872) Fix benchmark CI (pydata#9013) Avoid extra read from disk when creating Pandas Index. (pydata#8893) Add a benchmark to monitor performance for large dataset indexing (pydata#9012) Zarr: Optimize `region="auto"` detection (pydata#8997) Trigger CI only if code files are modified. (pydata#9006) Fix for ruff 0.4.3 (pydata#9007) Port negative frequency fix for `pandas.date_range` to `cftime_range` (pydata#8999) Bump codecov/codecov-action from 4.3.0 to 4.3.1 in the actions group (pydata#9004) Speed up localize (pydata#8536) Simplify fast path (pydata#9001) Add argument check_dims to assert_allclose to allow transposed inputs (pydata#5733) (pydata#8991) Fix syntax error in test related to cupy (pydata#9000)
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pandas.date_range,cftime_rangewould previously return dates outside the range of the specified start and end dates if provided a negative frequency:This PR ports a bug fix from pandas (pandas-dev/pandas#56147) to prevent this from happening. The above example now produces:
Since this is a bug fix, we do not make any attempt to preserve the old behavior if an earlier version of pandas is installed. In the testing context this means we skip some tests for pandas versions less than 3.0.
whats-new.rst