roger-mike commented on a change in pull request #16256:
URL: https://github.com/apache/beam/pull/16256#discussion_r776843672
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File path: sdks/python/apache_beam/dataframe/frames_test.py
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@@ -1245,6 +1245,37 @@ def test_idxmax(self):
self._run_test(lambda s2: s2.idxmax(), s2)
self._run_test(lambda s2: s2.idxmax(skipna=False), s2)
+ def test_pipe(self):
+ def df_times(df, column, times):
+ df[column] = df[column] * times
+ return df
+
+ def s_times(s, times):
+ return s * times
+
+ df = pd.DataFrame({'A': [1, 2, 3], 'B': [4, 5, 6]}, index=[0, 1, 2])
+ s = pd.Series([1, 2, 3, 4, 5], index=[0, 1, 2, 3, 4])
+ # s2 = pd.Series([6, 7], index=[5, 6])
+
+ func_1 = df_times
+ func_2 = frames.DeferredDataFrame.sum
+ func_3 = frames.DeferredSeries.sum
+ func_4 = s_times
+ # func_5 = frames.DeferredSeries.append
+
+ self._run_inplace_test(lambda df: df.pipe(func_1, 'A', 2), df)
+ self._run_test(lambda df: df.pipe(func_2), df)
+ # type assert fails when axis=1
+ # self._run_test(lambda df: df.pipe(func_2, axis=1), df)
Review comment:
Maybe the proxy check can be skipped given that can't create a proxy
dynamically
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