how to install in dev mode?

running pip install -e . complains that there is no setup.py. What is the recommended procedure?

pip install -e .
ERROR: File "setup.py" not found. Directory cannot be installed in editable mode: /Users/kkosack/Projects/CTA/Working/python-project-template
(A "pyproject.toml" file was found, but editable mode currently requires a setup.py based build.)

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