mistercrunch closed pull request #4804: [upload csv to hive] fix call to 
URL: https://github.com/apache/incubator-superset/pull/4804

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diff --git a/superset/db_engine_specs.py b/superset/db_engine_specs.py
index 85ff9dbb80..d239f899a8 100644
--- a/superset/db_engine_specs.py
+++ b/superset/db_engine_specs.py
@@ -869,7 +869,7 @@ def create_table_from_csv(form, table):
         """Uploads a csv file and creates a superset datasource in Hive."""
         def get_column_names(filepath):
             with open(filepath, 'rb') as f:
-                return unicodecsv.reader(f, encoding='utf-8-sig').next()
+                return next(unicodecsv.reader(f, encoding='utf-8-sig'))
         table_name = form.name.data
         filename = form.csv_file.data.filename


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