Add support for __str__ in ExecutionResult

.gitignore

@@ -67,7 +67,7 @@ docs/_build/
 *.iml
 
 # Visual Studio
-/.vscode
+.vscode/*
 
 # OS X
 .DS_Store

graphql/error/base.py

@@ -44,7 +44,6 @@ def __init__(
         self._locations = locations
         self.path = path
         self.extensions = extensions
-        return None
 
     @property
     def source(self):

graphql/execution/base.py

@@ -48,6 +48,9 @@ def __eq__(self, other):
             and self.invalid == other.invalid
         )
 
+    def __str__(self):
+        return str(self.to_dict())
+
     def to_dict(self, format_error=None, dict_class=OrderedDict):
         # type: (Optional[Callable[[Exception], Dict]], Type[Dict]) -> Dict[str, Any]
         if format_error is None:

graphql/type/definition.py

@@ -110,10 +110,6 @@ def is_same_type(self, other):
         return self.__class__ is other.__class__ and self.name == other.name
 
 
-def none_func(x):
-    None
-
-
 class GraphQLScalarType(GraphQLNamedType):
     """Scalar Type Definition
 
@@ -144,6 +140,7 @@ def __init__(
         # type: (...) -> None
         assert name, "Type must be named."
         assert_valid_name(name)
+        super(GraphQLScalarType, self).__init__(name)
         self.name = name
         self.description = description
 
@@ -161,8 +158,8 @@ def __init__(
             )
 
         self.serialize = serialize
-        self.parse_value = parse_value or none_func
-        self.parse_literal = parse_literal or none_func
+        self.parse_value = parse_value or None
+        self.parse_literal = parse_literal or None
 
     def __str__(self):
         # type: () -> str
@@ -207,6 +204,7 @@ def __init__(
         # type: (...) -> None
         assert name, "Type must be named."
         assert_valid_name(name)
+        super(GraphQLObjectType, self).__init__(name)
         self.name = name
         self.description = description
 
@@ -341,7 +339,7 @@ class GraphQLArgument(object):
 
     def __init__(
         self,
-        type,  # type: Union[GraphQLInputObjectType, GraphQLNonNull, GraphQLList, GraphQLScalarType]
+        type,  # type: Union[GraphQLInputObjectType, GraphQLNonNull, GraphQLList, GraphQLScalarType, GraphQLEnumType]
         default_value=None,  # type: Optional[Any]
         description=None,  # type: Optional[Any]
         out_name=None,  # type: Optional[str]
@@ -388,6 +386,7 @@ def __init__(
         description=None,  # type: Optional[Any]
     ):
         # type: (...) -> None
+        super(GraphQLInterfaceType, self).__init__(name)
         assert name, "Type must be named."
         assert_valid_name(name)
         self.name = name
@@ -435,6 +434,7 @@ def __init__(
         description=None,  # type: Optional[Any]
     ):
         # type: (...) -> None
+        super(GraphQLUnionType, self).__init__(name)
         assert name, "Type must be named."
         assert_valid_name(name)
         self.name = name
@@ -510,6 +510,7 @@ class GraphQLEnumType(GraphQLNamedType):
     def __init__(self, name, values, description=None):
         assert name, "Type must provide name."
         assert_valid_name(name)
+        super(GraphQLEnumType, self).__init__(name)
         self.name = name
         self.description = description
 
@@ -646,6 +647,7 @@ def __init__(
     ):
         # type: (...) -> None
         assert name, "Type must be named."
+        super(GraphQLInputObjectType, self).__init__(name)
         self.name = name
         self.description = description
         if container_type is None:

setup.py

@@ -53,7 +53,7 @@ def run_tests(self):
     name="graphql-core",
     version=version,
     description="GraphQL implementation for Python",
-    long_description=open("README.md").read(),
+    long_description=open("README.md", encoding="utf8").read(),
     long_description_content_type="text/markdown",
     url="https://github.com/graphql-python/graphql-core-legacy",
     download_url="https://github.com/graphql-python/graphql-core-legacy/releases",