Python project spoofing namespace

bar-__init__.py

# This is in bar/__init__.py
from proj.foo.bar.types import Message

__all__ = ["Message"]

bar-jim.py

# This is in bar/jim.py
from proj.foo.bar import Message

print(Message)

bar-types.py

# This is in bar/types.py
class Message:
    pass

foo-repo.code-workspace

{
	"folders": [
		{
			"path": "."
		}
	],
	"settings": {
		"cursorpyright.analysis.diagnosticMode": "openFilesOnly",
		"cursorpyright.analysis.typeCheckingMode": "standard",
		"files.trimTrailingWhitespace": true,
		"files.exclude": {
			".pytest_cache": true,
			".ruff_cache": true,
			".venv": true,
			"**/__pycache__": true,
			"**/*.egg-info": true,
		},
		"ruff.configuration": "pyproject.toml",
		"[python]": {
			"editor.codeActionsOnSave": {
				"source.fixAll": "never",
				"source.organizeImports.ruff": "explicit",
				"source.unusedImports": "never"
			},
			"editor.defaultFormatter": "charliermarsh.ruff",
			"editor.formatOnSave": true,
			"editor.rulers": [160] // Visual indicator where Ruff source formatter breaks, see pyproject.toml for Ruff settings
		},
	},
	"extensions": {
		"recommendations": [
			"anysphere.cursorpyright", // Using Cursor, not VS Code
			"charliermarsh.ruff",
			"ms-python.debugpy",
			"ms-python.python",
			"tamasfe.even-better-toml",
		]
	},
}

pyproject.toml

[project]
name = "proj-foo"
version = "1.0"
description = "Standalone repo for foo"
requires-python = "==3.11.*"

[tool.ruff]
line-length = 160 # Allow longer source lines than the default 88 chars
exclude = [ ".venv/**" ]
lint.select = [ "A", "ANN", "B", "C4", "D", "E", "F", "FA", "I", "PD", "PTH", "Q", "SIM", "TC", "UP" ]
lint.pydocstyle.convention = "google" # Support Google-style docstrings

[tool.pyproject-fmt]
keep_full_version = true

# Special configuration just for the foo-proj sub-repo.
# This does not work, but indicates intent.
[tool.uv.build-backend]
module-root = "."
module-name = "proj.foo"