improving error message

szalai1 · szalai1 · commit a45190160dba · 2017-09-08T13:24:33.000+02:00
diff --git a/python/pyspark/sql/types.py b/python/pyspark/sql/types.py
@@ -440,8 +440,8 @@ def fromInternal(self, obj):
 
     def typeName(self):
         raise TypeError(
-            "StructField does not have typename. \
-            You can use self.dataType.simpleString() instead.")
+            "StructField does not have typeName."
+            "Use typeName on its type explicitly instead.")
 
 
 class StructType(DataType):
