runtime error

/site-packages/gradio/__init__.py", line 3, in <module> import gradio.components as components File "/home/user/.local/lib/python3.8/site-packages/gradio/components.py", line 32, in <module> from gradio import media_data, processing_utils, utils File "/home/user/.local/lib/python3.8/site-packages/gradio/processing_utils.py", line 21, in <module> from fastapi import UploadFile File "/home/user/.local/lib/python3.8/site-packages/fastapi/__init__.py", line 7, in <module> from .applications import FastAPI as FastAPI File "/home/user/.local/lib/python3.8/site-packages/fastapi/applications.py", line 16, in <module> from fastapi import routing File "/home/user/.local/lib/python3.8/site-packages/fastapi/routing.py", line 24, in <module> from fastapi.dependencies.models import Dependant File "/home/user/.local/lib/python3.8/site-packages/fastapi/dependencies/models.py", line 3, in <module> from fastapi.security.base import SecurityBase File "/home/user/.local/lib/python3.8/site-packages/fastapi/security/__init__.py", line 1, in <module> from .api_key import APIKeyCookie as APIKeyCookie File "/home/user/.local/lib/python3.8/site-packages/fastapi/security/api_key.py", line 3, in <module> from fastapi.openapi.models import APIKey, APIKeyIn File "/home/user/.local/lib/python3.8/site-packages/fastapi/openapi/models.py", line 61, in <module> class ServerVariable(BaseModel): File "pydantic/main.py", line 262, in pydantic.main.ModelMetaclass.__new__ File "pydantic/fields.py", line 315, in pydantic.fields.ModelField.infer File "pydantic/fields.py", line 284, in pydantic.fields.ModelField.__init__ File "pydantic/fields.py", line 356, in pydantic.fields.ModelField.prepare File "pydantic/fields.py", line 450, in pydantic.fields.ModelField._type_analysis File "/usr/local/lib/python3.8/typing.py", line 777, in __subclasscheck__ raise TypeError("Subscripted generics cannot be used with" TypeError: Subscripted generics cannot be used with class and instance checks

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