Fixed PEP8 errors

Author: syrusakbary

graphql/language/tests/test_printer.py

@@ -48,7 +48,7 @@ def test_correctly_prints_mutation_operation_without_name():
 
 def test_correctly_prints_query_with_artifacts():
     query_ast_shorthanded = parse(
-      'query ($foo: TestType) @testDirective { id, name }'
+        'query ($foo: TestType) @testDirective { id, name }'
     )
     assert print_ast(query_ast_shorthanded) == '''query ($foo: TestType) @testDirective {
   id
@@ -59,7 +59,7 @@ def test_correctly_prints_query_with_artifacts():
 
 def test_correctly_prints_mutation_with_artifacts():
     query_ast_shorthanded = parse(
-      'mutation ($foo: TestType) @testDirective { id, name }'
+        'mutation ($foo: TestType) @testDirective { id, name }'
     )
     assert print_ast(query_ast_shorthanded) == '''mutation ($foo: TestType) @testDirective {
   id

graphql/language/visitor.py

@@ -7,6 +7,7 @@
 
 
 class Falsey(object):
+
     def __nonzero__(self):
         return False
 

graphql/validation/rules/fields_on_correct_type.py

@@ -12,7 +12,6 @@
     izip = zip
 
 
-
 class OrderedCounter(Counter, OrderedDict):
     pass
 
@@ -43,7 +42,7 @@ def undefined_field_message(field_name, type, suggested_types):
             suggestions = ', '.join(['"{}"'.format(t) for t in suggested_types[:MAX_LENGTH]])
             l_suggested_types = len(suggested_types)
             if l_suggested_types > MAX_LENGTH:
-                suggestions += ", and {} other types".format(l_suggested_types-MAX_LENGTH)
+                suggestions += ", and {} other types".format(l_suggested_types - MAX_LENGTH)
             message += " However, this field exists on {}.".format(suggestions)
             message += " Perhaps you meant to use an inline fragment?"
         return message

graphql/validation/tests/test_fields_on_correct_type.py

@@ -188,11 +188,11 @@ def test_defined_on_implementors_queried_on_union():
       }
     ''', [
         undefined_field(
-          'name',
-          'CatOrDog',
-          ['Being', 'Pet', 'Canine', 'Cat', 'Dog'],
-          3,
-          9
+            'name',
+            'CatOrDog',
+            ['Being', 'Pet', 'Canine', 'Cat', 'Dog'],
+            3,
+            9
         )
     ])
 
@@ -218,17 +218,17 @@ def test_fields_correct_type_no_suggestion():
 def test_fields_correct_type_no_small_number_suggestions():
     message = FieldsOnCorrectType.undefined_field_message('T', 'f', ['A', 'B'])
     assert message == (
-      'Cannot query field "T" on type "f". ' +
-      'However, this field exists on "A", "B". ' +
-      'Perhaps you meant to use an inline fragment?'
+        'Cannot query field "T" on type "f". ' +
+        'However, this field exists on "A", "B". ' +
+        'Perhaps you meant to use an inline fragment?'
     )
 
 
 def test_fields_correct_type_lot_suggestions():
     message = FieldsOnCorrectType.undefined_field_message('T', 'f', ['A', 'B', 'C', 'D', 'E', 'F'])
     assert message == (
-      'Cannot query field "T" on type "f". ' +
-      'However, this field exists on "A", "B", "C", "D", "E", ' +
-      'and 1 other types. '+
-      'Perhaps you meant to use an inline fragment?'
+        'Cannot query field "T" on type "f". ' +
+        'However, this field exists on "A", "B", "C", "D", "E", ' +
+        'and 1 other types. ' +
+        'Perhaps you meant to use an inline fragment?'
     )