ENH: set __module__ on read_* functions in readers.py (#60265)

Author: chanshing

pandas/io/parsers/readers.py

@@ -32,7 +32,10 @@
     AbstractMethodError,
     ParserWarning,
 )
-from pandas.util._decorators import Appender
+from pandas.util._decorators import (
+    Appender,
+    set_module,
+)
 from pandas.util._exceptions import find_stack_level
 from pandas.util._validators import check_dtype_backend
 
@@ -771,6 +774,7 @@ def read_csv(
         % "filepath_or_buffer",
     )
 )
+@set_module("pandas")
 def read_csv(
     filepath_or_buffer: FilePath | ReadCsvBuffer[bytes] | ReadCsvBuffer[str],
     *,
@@ -906,6 +910,7 @@ def read_table(
         % "filepath_or_buffer",
     )
 )
+@set_module("pandas")
 def read_table(
     filepath_or_buffer: FilePath | ReadCsvBuffer[bytes] | ReadCsvBuffer[str],
     *,
@@ -1023,6 +1028,7 @@ def read_fwf(
 ) -> DataFrame: ...
 
 
+@set_module("pandas")
 def read_fwf(
     filepath_or_buffer: FilePath | ReadCsvBuffer[bytes] | ReadCsvBuffer[str],
     *,

pandas/tests/api/test_api.py

@@ -417,6 +417,9 @@ def test_set_module():
     assert pd.Period.__module__ == "pandas"
     assert pd.Timestamp.__module__ == "pandas"
     assert pd.Timedelta.__module__ == "pandas"
+    assert pd.read_csv.__module__ == "pandas"
+    assert pd.read_table.__module__ == "pandas"
+    assert pd.read_fwf.__module__ == "pandas"
     assert pd.Series.__module__ == "pandas"
     assert pd.date_range.__module__ == "pandas"
     assert pd.bdate_range.__module__ == "pandas"