v2.0 Upgrade Guide

ObjectType, Interface, InputObjectType, Scalar and Enum implementations have been quite simplified, without the need of define a explicit Metaclass. The metaclasses threfore are now deleted as are no longer necessary, if your code was depending on this internal metaclass for creating custom attrs, please see an example of how to do it now in 2.0.

Deprecations

Before:

class CommonFields(AbstractType):
    name = String()

class Pet(CommonFields, Interface):
    pass

With 2.0:

class CommonFields(object):
    name = String()

class Pet(CommonFields, Interface):
    pass

Meta options as class arguments (ONLY PYTHON 3).

Before:

class Dog(ObjectType):
    class Meta:
        interfaces = [Pet]
    name = String()

With 2.0:

class Dog(ObjectType, interfaces=[Pet]):
    name = String()