What's the problem this feature will solve?

Standardizing on a file format that fixes some shortcomings of requirements files.

Describe the solution you'd like

Two possibilities.

One,pip freeze emits PEP 665 files.

Two,-r (or some new option) can read in and install from a PEP 665 file.

Alternative Solutions

Status quo.

Additional context

https://discuss.python.org/t/pep-665-take-2-a-file-format-to-list-python-dependencies-for-reproducibility-of-an-application/11736

I'm basically looking for tool support to quote in the PEP at this point to help drive its support/acceptance.

Code of Conduct

• I agree to follow thePSF Code of Conduct.