Attribute Not Defined in Union Member

An attribute is accessed on a union type but one or more union members do not define it. Narrow the type with isinstance() or other type guards before accessing the attribute.

References

mypy.readthedocs.io/en/stable/error_codes.html

In this namespace

← previous type-var Invalid TypeVar Usage next → unreachable Unreachable Code

override return return-value type-arg type-var union-attr unreachable valid-type var-annotated