Conda-build skeleton and pyproject.toml files

I am trying to build my first conda package from an available package on pypi and I am trying to follow the conda commandsby issuing conda skeleton --recursive mypackage.

However, it seems that to create recipes from pypi the pypipackage must have a, which is not my case as I use a pyproject.toml file.

Is there any method to create a conda skeleton from pipy packages that have only a pyproject.toml file?