drop N/A rows from input dataframes

django_diu/import_command.py

@@ -152,7 +152,7 @@ class DataFrameImportTask(ImportTask):
     dataframe = None
 
     def open_data_source(self):
-        self.rows = (row for idx, row in self.dataframe.iterrows())
+        self.rows = (row for idx, row in self.dataframe.dropna(how='all').iterrows())
 
     def count_source(self):
         self.source_count = self.dataframe.shape[0]