TypeError: Builtin.__init__() takes 2 positional arguments but 3 were given when running poetry install on python:3.12.12-trixie

[MarcinWronecki]

Works with: python:3.12.11-trixie
Not working with: python:3.12.12-trixie

Hi, we’ve been experiencing a build failure since this morning when running:
poetry install

  - Installing pytest-cov (6.2.1)
  - Installing pytest-django (4.11.1)
  TypeError
  Builtin.__init__() takes 2 positional arguments but 3 were given
  at /usr/src/venv/lib/python3.12/site-packages/virtualenv/run/plugin/discovery.py:35 in get_discover
       31│ 
       32│ 
       33│ def _get_default_discovery(discover_types):
       34│     return list(discover_types.keys())
    →  35│ 
       36│ 
       37│ __all__ = [
       38│     "Discovery",
       39│     "get_discover",
Cannot install histpat-toolkit.
  - Installing pytest-mock (3.14.1)
  - Installing pytest-repeat (0.9.4)
  - Installing pytest-xdist (3.7.0)
  - Installing ruff (0.11.13)
  - Installing types-simplejson (3.20.0.20250326)
  - Installing django-types (0.22.0 2f16ec3)
  TypeError
  Builtin.__init__() takes 2 positional arguments but 3 were given
  at /usr/src/venv/lib/python3.12/site-packages/virtualenv/run/plugin/discovery.py:35 in get_discover
       31│ 
       32│ 
       33│ def _get_default_discovery(discover_types):
       34│     return list(discover_types.keys())
    →  35│ 
       36│ 
       37│ __all__ = [
       38│     "Discovery",
       39│     "get_discover",
Cannot install django-types.

FYI, histpat-toolkit is our own internal package.

[tianon]

This looks like something failing down inside virtualenv's code -- have you managed to reproduce without your internal package so others can more easily dig in and help try to diagnose? 👀