robertwb commented on a change in pull request #13082:
URL: https://github.com/apache/beam/pull/13082#discussion_r505099293
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File path: sdks/python/apache_beam/dataframe/frames.py
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@@ -27,12 +28,118 @@
from apache_beam.dataframe import partitionings
-@frame_base.DeferredFrame._register_for(pd.Series)
-class DeferredSeries(frame_base.DeferredFrame):
+class DeferredDataFrameOrSeries(frame_base.DeferredFrame):
def __array__(self, dtype=None):
raise frame_base.WontImplementError(
'Conversion to a non-deferred a numpy array.')
+ @frame_base.args_to_kwargs(pd.DataFrame)
+ @frame_base.populate_defaults(pd.DataFrame)
+ def droplevel(self, level, axis):
+ return frame_base.DeferredFrame.wrap(
+ expressions.ComputedExpression(
+ 'droplevel',
+ lambda df: df.droplevel(level, axis=axis), [self._expr],
+ requires_partition_by=partitionings.Nothing(),
+ preserves_partition_by=partitionings.Index()
+ if axis in (1, 'column') else partitionings.Nothing()))
+
+ @frame_base.args_to_kwargs(pd.DataFrame)
+ @frame_base.populate_defaults(pd.DataFrame)
+ def groupby(self, by, level, axis, as_index, group_keys, **kwargs):
Review comment:
Ah, yes, will do.
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