feat: Optimize serializing Pandas DataFrame for writing #92

Author: rolincova

tests/test_WriteApiDataFrame.py

@@ -48,6 +48,8 @@ def test_write_data_frame(self):
                                      data_frame_measurement_name='h2o_feet',
                                      data_frame_tag_columns=['location'])
 
+            self._write_client.__del__()
+
             print("Time elapsed: ", (time.time() - start))
 
         csv_file.close()