No module named 'pkg_resources'

[jenskutilek]

Diffenator doesn't currently run. I tried with Python 3.13 and 3.14.

% diffenator2
Traceback (most recent call last):
  File "venv/bin/diffenator2", line 5, in <module>
    from diffenator2.__main__ import main
  File "venv/lib/python3.13/site-packages/diffenator2/__init__.py", line 5, in <module>
    from diffenator2.renderer import FONT_SIZE
  File "venv/lib/python3.13/site-packages/diffenator2/renderer.py", line 14, in <module>
    from diffenator2.font import DFont
  File "venv/lib/python3.13/site-packages/diffenator2/font.py", line 12, in <module>
    from diffenator2.template_elements import CSSFontFace, CSSFontStyle
  File "venv/lib/python3.13/site-packages/diffenator2/template_elements.py", line 9, in <module>
    from .utils import font_family_name
  File "venv/lib/python3.13/site-packages/diffenator2/utils.py", line 18, in <module>
    from pkg_resources import resource_filename
ModuleNotFoundError: No module named 'pkg_resources'

Should I look at diffenator3 instead already? :)

[janbrasna]

It is not compatible with setuptools above v80:

./venv/lib/python3.11/site-packages/diffenator2/utils.py:18: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.
from pkg_resources import resource_filename

https://github.com/pypa/setuptools/blob/v82.0.0/NEWS.rst

(I fixed it for my stack by adding an extra setuptools<81 to my requirements for now.)

It sounds like it needs something similar to fonttools/fontbakery#5039