Method loadConfig

sdk/python/runtime/discovery.go:365–401

loadConfig loads configurations from user files listed in FileContents.

(ctx context.Context, m *PythonSdk)

// loadConfig loads configurations from user files listed in FileContents.
func (d *Discovery) loadConfig(ctx context.Context, m *PythonSdk) error {
	// d.Files can be empty if EnableCustomConfig is false, which can be disabled
	// on extension modules. Otherwise, `pyproject.toml` can only be empty
	// on `dagger init`, in which case it will be created from template.
	contents, exists := d.Files["pyproject.toml"]
	if !exists {
		return nil
	}

	if err := toml.Unmarshal([]byte(contents), &d.Config); err != nil {
		return err
	}

	baseImage, err := d.parseBaseImage(d.DefaultImages[BaseImageName])
	if err != nil {
		return err
	}
	uvImage, err := d.parseUvImage(d.DefaultImages[UvImageName])
	if err != nil {
		return err
	}
	d.Images[BaseImageName] = baseImage
	d.Images[UvImageName] = uvImage

	// For an existing pyproject.toml, the project name may divert from the default
	if d.Config.Project.Name != "" {
		m.ProjectName = d.Config.Project.Name
		m.PackageName = NormalizePackageName(m.ProjectName)
	}

	// Only look for vendor path when uv.lock is being used
	if m.UseUvLock() {
		m.VendorPath = d.Config.Tool.Uv.Sources.Dagger.Path
	}

	return nil
}

// findPythonVersion looks for a Python version pin in either `.python-version`
// or `requires-python` in pyproject.toml.