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fix: support pandas >= 3.0.0 Day offset division for resampled time coordinates (#179) #202

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fix: support pandas >= 3.0.0 Day offset division for resampled time coordinates (#179) #202

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6 changes: 5 additions & 1 deletion reshapr/core/extract.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1001,7 +1001,11 @@ def _calc_resampled_time_coord(resampled_time_index, freq):
# pandas 2.2.0 deprecated the M, Q & Y frequency aliases in favour of ME, QE & YE
# We interpreted M to mean MS. Now we accept both for backward compatibility.
if not freq.endswith(("M", "MS")):
offsets = pandas.tseries.frequencies.to_offset(freq) / 2
offset = pandas.tseries.frequencies.to_offset(freq)
# pandas >= 3.0.0 removed support for dividing Day offsets
# Use anchor timestamp to compute half-offset duration safely
anchor = pandas.Timestamp("2000-01-01")
offsets = (anchor + offset - anchor) / 2
return resampled_time_index + offsets
offsets = [
pandas.tseries.frequencies.to_offset(
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