add read_parquet to top-level

Author: jreback

pandas/io/api.py

@@ -13,6 +13,7 @@
 from pandas.io.sql import read_sql, read_sql_table, read_sql_query
 from pandas.io.sas import read_sas
 from pandas.io.feather_format import read_feather
+from pandas.io.parquet import read_parquet
 from pandas.io.stata import read_stata
 from pandas.io.pickle import read_pickle, to_pickle
 from pandas.io.packers import read_msgpack, to_msgpack

pandas/tests/io/test_parquet.py

@@ -70,8 +70,9 @@ def check_round_trip(self, df, engine, expected=None, **kwargs):
                 expected = df
             tm.assert_frame_equal(result, expected)
 
+            # repeat
             to_parquet(df, path, engine, **kwargs)
-            result = read_parquet(path, engine)
+            result = pd.read_parquet(path, engine)
 
             if expected is None:
                 expected = df