#20076 Does Pants support adding prefix namespaces? New discussion created by Asmhoa Hello, my team has a python apps monorepo that looks like:

umbrella/
├─ libs/
│  ├─ lib1/
│  │  ├─ setup.py
│  ├─ lib2/
│  │  ├─ setup.py
│  ├─ lib3/
│  │  ├─ setup.py
├─ apps/
│  ├─ app1/
│  │  ├─ src/
│  │  │  ├─ __init__.py
│  │  ├─ setup.py
│  ├─ app2/
│  │  ├─ setup.py
pants.toml

For each of these libs and apps, we want to include them in a namespace. For example,

umbrella/apps/app1/setup.py

contains

from setuptools import setup
setup(
    package_dir={"umbrella.apps.app1": "src"}
)

which allows us to

pip install apps/app1

independently and then

import umbrella.apps.app1

. Is this kind of namespace prefixing supported with source roots in Pants? pantsbuild/pants