#23426 pytest 9.1.0 breaks PEX runner: AttributeError: module '_pytest.config' has no attribute '_console_main' Issue created by pmcguire-s44 Summary pytest 9.1.0 removed the private

_pytest.config._console_main

attribute, renaming it to the public

_pytest.config.console_main

. The Pants PEX-based pytest runner invokes pytest via its

console_scripts

entry point, which references

_pytest.config:_console_main

. This causes an

AttributeError

at test-run time with pytest ≥ 9.1. Error

AttributeError: module '_pytest.config' has no attribute '_console_main'. Did you mean: 'console_main'?

Steps to reproduce 1. Use Pants 2.32.0 with a Python project that depends on

pytest>=9.1

. 2. Run

pants test ::

. Root cause pytest changed its console script entry point from

_pytest.config:_console_main

to

_pytest.config:console_main

in 9.1.0. The Pants PEX runner builds a PEX that hard-codes the old entry point name. Relevant pytest change: https://github.com/pytest-dev/pytest/blob/main/CHANGELOG.rst Workaround Pin

pytest<9.1

in all project

pyproject.toml

files until Pants is updated to use the new entry point. Expected behavior Pants should invoke pytest via the public

console_main

entry point (or via

pytest.main()

) so that it works with pytest ≥ 9.1. Environment • Pants version: 2.32.0 • pytest version: 9.1.0 • Python: 3.13 pantsbuild/pants