mypy_extensions is only declared as a dev dependency but it directly imported

[nemith]

We are failing to run some CI tests as mypy_extensions is missing

/usr/local/lib/python3.8/site-packages/nornir/__init__.py:3: in <module>
    from nornir.init_nornir import InitNornir
/usr/local/lib/python3.8/site-packages/nornir/init_nornir.py:3: in <module>
    from nornir.core import Nornir
/usr/local/lib/python3.8/site-packages/nornir/core/__init__.py:6: in <module>
    from nornir.core.inventory import Inventory
/usr/local/lib/python3.8/site-packages/nornir/core/inventory.py:23: in <module>
    from mypy_extensions import Arg, KwArg
E   ModuleNotFoundError: No module named 'mypy_extensions'

Looking at https://github.com/nornir-automation/nornir/blob/main/pyproject.toml#L43 it is only declaring mypy_extentions as a dev dependency but in this case it is not a dev dependency but

My guess is something else changes in our dep tree that removed mypy_extension but it needs to be explicitly declared as a runtime dependency as it is being directly imported here https://github.com/nornir-automation/nornir/blob/main/nornir/core/inventory.py#L23

[nemith]

Seems like using these are deprecated anyway. https://mypy.readthedocs.io/en/stable/additional_features.html?highlight=mypy_extensions#extended-callable-types

[ubaumann]

Nornir was just released some hours ago but we missed this line:

nornir/nornir/core/inventory.py

Line 23 in 325c8ca

from mypy_extensions import Arg, KwArg

I will take a look when I am home.
In the meantime you can pin the nornir version or add it to your dependencies

[ktbyers]

Fixed here:

#867

New Nornir version 3.4.1 released to pypi.