Nox session install not working

I have been following along, and I realise the articles are a few years old and poetry, pip etc. have moved along.

But when the install_with_constraints function does the install it seems as though pip doesn’t like the constaints file. Just wondering if this is something anyone else has seen and/or knows a way around?

$ nox -s black
nox > Running session black
nox > Creating virtual environment (virtualenv) using python3.10 in .nox/black
nox > poetry export --with dev --format=requirements.txt --output=/tmp/tmplk132qu3
nox > python -m pip install --constraint=/tmp/tmplk132qu3 black
nox > Command python -m pip install --constraint=/tmp/tmplk132qu3 black failed with exit code 1:
DEPRECATION: Constraints are only allowed to take the form of a package name and a version specifier. Other forms were originally permitted as an accident of the implementation, but were undocumented. The new implementation of the resolver no longer supports these forms. A possible replacement is replacing the constraint with a requirement. Discussion can be found at https://github.com/pypa/pip/issues/8210
ERROR: Constraints cannot have extras
nox > Session black failed.

[adamblake]

@accasey It’s actually two things:

1. change the format to constraints.txt rather than requirements.txt to take care of the error you had (doesn’t output the extras)
2. add --without-hashes to take care of an error that came up when I changed the format to constraints

[accasey]

Yes I see that now. Thanks again 😊