Minimal example:

import strawberry
from pydantic import BaseModel
from typing import Literal


class Model(BaseModel):
    name: Literal["test"]


@strawberry.experimental.pydantic.type(model=Model, all_fields=True)
class BerryModel:
    """Oh no"""

throws

/usr/local/lib/python3.8/site-packages/strawberry/experimental/pydantic/object_type.py:102: in wrap
    all_model_fields: List[Tuple[str, Any, dataclasses.Field]] = [
/usr/local/lib/python3.8/site-packages/strawberry/experimental/pydantic/object_type.py:105: in <listcomp>
    get_type_for_field(field),
/usr/local/lib/python3.8/site-packages/strawberry/experimental/pydantic/object_type.py:56: in get_type_for_field
    type_ = replace_pydantic_types(type_)
/usr/local/lib/python3.8/site-packages/strawberry/experimental/pydantic/object_type.py:29: in replace_pydantic_types
    tuple(replace_pydantic_types(t) for t in type_.__args__)
/usr/local/lib/python3.8/site-packages/strawberry/experimental/pydantic/object_type.py:29: in <genexpr>
    tuple(replace_pydantic_types(t) for t in type_.__args__)
/usr/local/lib/python3.8/site-packages/strawberry/experimental/pydantic/object_type.py:44: in replace_pydantic_types
    if issubclass(type_, BaseModel):
/usr/local/lib/python3.8/abc.py:102: in __subclasscheck__
    return _abc_subclasscheck(cls, subclass)
E   TypeError: issubclass() arg 1 must be a class

I'm fairly sure this is because the __args__ of Literal are just the strings,

>>> from typing import Literal
>>> name = Literal["name"]
>>> name.__args__
('name',)

because, to continue the example

issubclass("name", BaseModel)

will throw the error above

I will look into a fix - any help from the original author would be appreciated, however :)