Speed up Dataset._construct_dataarray #4744
Merged
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isort . && black . && mypy . && flake8
whats-new.rst
Significantly speeds up
_construct_dataarray
by iterating over._coord_names
instead of.coords
. This avoids unnecessarily constructing aDatasetCoordinates
object and massively speeds up repr construction for datasets with large numbers of variables.Construct a 2000 variable dataset
Before:
After: