add filepath stringification

pandas/io/parquet.py

@@ -3,6 +3,7 @@
 from warnings import catch_warnings
 from pandas import DataFrame, RangeIndex, Int64Index, get_option
 from pandas.compat import range
+from pandas.io.common import get_filepath_or_buffer
 
 
 def get_engine(engine):
@@ -38,11 +39,13 @@ def __init__(self):
         self.api = pyarrow
 
     def write(self, df, path, compression=None, **kwargs):
+        path, _, _ = get_filepath_or_buffer(path)
         table = self.api.Table.from_pandas(df)
         self.api.parquet.write_table(
             table, path, compression=compression, **kwargs)
 
     def read(self, path):
+        path, _, _ = get_filepath_or_buffer(path)
         return self.api.parquet.read_table(path).to_pandas()
 
 
@@ -66,11 +69,13 @@ def write(self, df, path, compression=None, **kwargs):
         # thriftpy/protocol/compact.py:339:
         # DeprecationWarning: tostring() is deprecated.
         # Use tobytes() instead.
+        path, _, _ = get_filepath_or_buffer(path)
         with catch_warnings(record=True):
             self.api.write(path, df,
                            compression=compression, **kwargs)
 
     def read(self, path):
+        path, _, _ = get_filepath_or_buffer(path)
         return self.api.ParquetFile(path).to_pandas()