Description

The meson-python build backend does not seem to conform entirely with the specification noted by PEP 660, and currently builds Python packages in editable mode but without the editable keyword.

The wheel built after the compilation proceeds is named as follows:

Created wheel for PyWavelets: filename=pywavelets-1.7.0.dev0-cp312-cp312-linux_x86_64.whl size=<...> sha256=<...>

MWE / steps to reproduce

For the purpose of this bug report, a reproducer is as follows:

git clone https://github.com/PyWavelets/pywt
pip install "numpy>=2.0.0b1" "meson-python>=0.16.0" "Cython>=3.0.4"
sudo apt-get install ninja-build  # or pip install ninja
pip install -e . --no-build-isolation

Any other Python packages using meson as the underlying build system should also produce the same output.

Expected behaviour

The build backend should append the editable keyword at the get_requires_for_build_editable stage when the wheel gets created, therefore renaming the wheel to have this keyword before the ABI tag and after the version of the package, i.e., the wheel should be named as follows:

Created wheel for PyWavelets: filename=pywavelets-1.7.0.dev0.editable-cp312-cp312-linux_x86_64.whl size=<...> sha256=<...>

Other available and popular build backends – such as setuptools for compiled extensions and hatchling for pure Python projects correctly add the editable keyword.

Relevant logs or additional context

I noticed this when trying to test out the recent editable installations improvements (#569) that came out with the new 0.16.0 release. xref: PyWavelets/pywt#702