Fix python style.

Author: viirya

python/pyspark/worker.py

@@ -100,17 +100,18 @@ def verify_result_length(*a):
         try:
             arrow_type_of_result = pa.from_numpy_dtype(result.dtype)
             both_are_timestamp = pa.types.is_timestamp(arrow_type_of_result) and \
-                                 pa.types.is_timestamp(arrow_return_type)
+                pa.types.is_timestamp(arrow_return_type)
             if not both_are_timestamp and arrow_return_type != arrow_type_of_result:
                 print("WARN: Arrow type %s of return Pandas.Series of the user-defined function's "
                       "dtype %s doesn't match the arrow type %s "
                       "of defined return type %s" % (arrow_type_of_result, result.dtype,
                                                      arrow_return_type, return_type),
                       file=sys.stderr)
         except:
-            print("WARN: Can't infer arrow type of Pandas.Series's dtype: %s, which might not match "
-                  "the arrow type %s of defined return type %s" % (result.dtype, arrow_return_type,
-                                                                   return_type),
+            print("WARN: Can't infer arrow type of Pandas.Series's dtype: %s, which might not "
+                  "match the arrow type %s of defined return type %s" % (result.dtype,
+                                                                         arrow_return_type,
+                                                                         return_type),
                   file=sys.stderr)
 
         return result