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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2022/06/22 22:33:53 UTC

[GitHub] [arrow] martin-liu commented on a diff in pull request #13402: MINOR: [Python] Fix pandas conversion failure when using non-str index name

martin-liu commented on code in PR #13402:
URL: https://github.com/apache/arrow/pull/13402#discussion_r904343035


##########
python/pyarrow/tests/test_pandas.py:
##########
@@ -149,6 +149,12 @@ def test_non_string_columns(self):
         table = pa.Table.from_pandas(df)
         assert table.field(0).name == '0'
 
+    def test_non_string_columns_with_index(self):
+        df = pd.DataFrame({0: [1, 2, 3], 1: [4, 5, 6]})
+        df = df.set_index(0)
+        table = pa.Table.from_pandas(df)
+        assert table.field(0).name == '1'

Review Comment:
   Good point! I tested that `_check_pandas_roundtrip` will fail



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