Deprecated Legacy Editable Installation

[Hespe]

Starting from pip version 25.0, the current package defintion of cheetah will no longer be supported for editable installations. An up-to-date version currently prints the following warning:

Legacy editable install of cheetah-accelerator is deprecated. pip 25.0 will enforce this behaviour change. A possible replacement is to add a pyproject.toml or enable --use-pep517, and use setuptools >= 64. If the resulting installation is not behaving as expected, try using --config-settings editable_mode=compat. Please consult the setuptools documentation for more information. Discussion can be found at pypa/pip#11457

See also the mentioned setuptools documentation on editable installs.

[Hespe]

From the discussion in the linked pip issue, it seems like the intended solution is to migrate to a pyproject.toml based package structure, which will continue to support editable installations.