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Update error message when saving multiindex #7475

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Merged
merged 3 commits into from
Feb 24, 2023
Merged

Update error message when saving multiindex #7475

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53a2c72
update error message on saving multiindex
OriolAbril Jan 24, 2023
dc9441a
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Jan 24, 2023
009bff0
Merge branch 'main' into encode_error
dcherian Feb 24, 2023
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9 changes: 5 additions & 4 deletions xarray/conventions.py
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Original file line number Diff line number Diff line change
Expand Up @@ -197,10 +197,11 @@ def ensure_not_multiindex(var: Variable, name: T_Name = None) -> None:
if isinstance(var, IndexVariable) and isinstance(var.to_index(), pd.MultiIndex):
raise NotImplementedError(
"variable {!r} is a MultiIndex, which cannot yet be "
"serialized to netCDF files "
"(https://github.com/pydata/xarray/issues/1077). Use "
"reset_index() to convert MultiIndex levels into coordinate "
"variables instead.".format(name)
"serialized to netCDF files. Instead, either use reset_index() "
"to convert MultiIndex levels into coordinate variables instead "
"or use https://cf-xarray.readthedocs.io/en/latest/coding.html.".format(
name
)
)


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