ENH: set __module__ on concat function in concat.py (#60334)

Co-authored-by: Aman Sharma <210100011@iitb.ac.in>

Author: amansharma612

pandas/core/reshape/concat.py

@@ -17,6 +17,7 @@
 import numpy as np
 
 from pandas._libs import lib
+from pandas.util._decorators import set_module
 from pandas.util._exceptions import find_stack_level
 
 from pandas.core.dtypes.common import (
@@ -149,6 +150,7 @@ def concat(
 ) -> DataFrame | Series: ...
 
 
+@set_module("pandas")
 def concat(
     objs: Iterable[Series | DataFrame] | Mapping[HashableT, Series | DataFrame],
     *,

pandas/tests/api/test_api.py

@@ -417,6 +417,7 @@ def test_set_module():
     assert pd.Period.__module__ == "pandas"
     assert pd.Timestamp.__module__ == "pandas"
     assert pd.Timedelta.__module__ == "pandas"
+    assert pd.concat.__module__ == "pandas"
     assert pd.isna.__module__ == "pandas"
     assert pd.notna.__module__ == "pandas"
     assert pd.merge.__module__ == "pandas"