[Python] Pydantic vs. Python 3.13.0: No module named 'typing_extensions'

I have code that worked fine with Python 3.10.12 and Pydantic 2.7.3.

I read that Pydantic ^2.8 supports Python 3.13.

The same code, and indeed even just import pydantic under a Python 3.13.0 shell with Pydantic 2.10.2, however, gives:

File "/home/user/path-to-package/src/validator.py", line 9, in <module>
from pydantic import TypeAdapter, BaseModel, validator
File "/home/user/path-to-package/.venv/lib/python3.13/site-packages/pydantic/__init__.py", line 396, in <module>
_getattr_migration = getattr_migration(__name__)
File "/home/user/path-to-package/.venv/lib/python3.13/site-packages/pydantic/_migration.py", line 260, in getattr_migration
from .errors import PydanticImportError
File "/home/user/path-to-package/.venv/lib/python3.13/site-packages/pydantic/errors.py", line 7, in <module>
from typing_extensions import Literal, Self
ModuleNotFoundError: No module named 'typing_extensions'



Why?

How can I fix this?

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