pyproject.toml file

The pyproject.toml file in your charm’s root directory is a typical Python pyproject.toml file.

See also

pyproject.toml in the pip documentation.

Charmcraft creates this file with the following contents:

• Dependencies of the charm code, pre-populated with Ops

• Dependencies of tests and linters

• Configuration of tests and linters

You’ll need to create uv.lock file and update it if you change your charm’s dependencies.

For 12-factor app profiles targeting Ubuntu 24.04 LTS or lower: pyproject.toml only contains the configuration for tests and linters. Dependencies are specified in the requirements.txt file, and there’s no uv.lock file.