Use unicodecsv to make it py3 compatible

airflow/hooks/hive_hooks.py

@@ -16,7 +16,7 @@
 from __future__ import print_function
 from builtins import zip
 from past.builtins import basestring
-import csv
+import unicodecsv as csv
 import logging
 import re
 import subprocess
@@ -477,7 +477,7 @@ def to_csv(
                 schema = cur.description
                 with open(csv_filepath, 'wb') as f:
                     writer = csv.writer(f, delimiter=delimiter,
-                        lineterminator=lineterminator)
+                        lineterminator=lineterminator, encoding='utf-8')
                     if output_header:
                         writer.writerow([c[0]
                             for c in cur.description])

setup.py

@@ -67,9 +67,10 @@ def run(self):
     'hive-thrift-py>=0.0.1',
     'pyhive>=0.1.3',
     'impyla>=0.13.3',
+    'unicodecsv>=0.14.1'
 ]
 jdbc = ['jaydebeapi>=0.2.0']
-mssql = ['pymssql>=2.1.1', 'unicodecsv>=0.13.0']
+mssql = ['pymssql>=2.1.1', 'unicodecsv>=0.14.1']
 mysql = ['mysqlclient>=1.3.6']
 optional = ['librabbitmq>=1.6.1']
 oracle = ['cx_Oracle>=5.1.2']