Update basestring for python3

rnpridgeon · rnpridgeon · commit bd555b1afefa · 2019-01-04T23:00:40.000-05:00
diff --git a/confluent_kafka/avro/schema.py b/confluent_kafka/avro/schema.py
@@ -52,7 +52,7 @@ def get_schema(datum):
         return datum.schema
     elif (datum is None):
         return PrimitiveSchema("null")
-    elif isinstance(datum, basestring):
+    elif isinstance(datum, string_type):
         return PrimitiveSchema('string')
     elif isinstance(datum, bool):
         return PrimitiveSchema('boolean')
