Implement __hash__ methods on GraphQLField and GraphQLArgument.

Author: jhgg

graphql/core/execution/executor.py

@@ -11,7 +11,7 @@
     GraphQLScalarType, GraphQLUnionType
 from ..validation import validate
 from .base import ExecutionContext, ExecutionResult, ResolveInfo, Undefined, collect_fields, default_resolve_fn, \
-    get_argument_values, get_field_def, get_operation_root_type
+    get_field_def, get_operation_root_type
 
 
 class Executor(object):

graphql/core/type/definition.py

@@ -317,6 +317,9 @@ def __eq__(self, other):
             )
         )
 
+    def __hash__(self):
+        return id(self)
+
 
 class GraphQLArgument(object):
     __slots__ = 'name', 'type', 'default_value', 'description'
@@ -338,6 +341,9 @@ def __eq__(self, other):
             )
         )
 
+    def __hash__(self):
+        return id(self)
+
 
 class GraphQLInterfaceType(GraphQLType):
     """Interface Type Definition