collision between python3Packages.dm-haiku and python3Packages.ml-collections

[natsukium]

Describe the bug

Creating a python env containing dm-haiku and ml-collections causes conflicts in site-packages/docs/conf.py.

Steps To Reproduce

Steps to reproduce the behavior:

1. nix-shell -p 'python3.withPackages(ps: with ps; [ml-collections dm-haiku])'
2. The following error occurs.

error: collision between `/nix/store/qf6dgxfvz52bwg5nr8k7if1bsn2s3hsm-python3.10-dm-haiku-0.0.9/lib/python3.10/site-packages/docs/conf.py' and `/nix/store/n50rsvnzckm2vmqr6hrwpb6v4w17k8sz-python3.10-ml-collections-0.1.1/lib/python3.10/site-packages/docs/conf.py'

Expected behavior

get into nix-shell

Screenshots

Additional context

Looking into the setup.py of these two packages, I found that they use find_namespace_packages() instead of find_packages(), so that the source "docs/" is (unintentionally?) included in the "site-packages".

https://github.com/deepmind/dm-haiku/blob/4b0401225221c2fba092903edfab15fc6e102642/setup.py#L49

https://github.com/google/ml_collections/blob/5cddb7e6dec24acf0f7e1d971fdd94422bd1065d/setup.py#L40

Note that there are 1178 python3 libraries in my nix store, although there are duplicates, and there are the only two that included docs in the site-packages.

I checked with these commands.
echo /nix/store/*python3*/lib/python3*/site-packages | xargs -n 1 | wc -l
fd conf.py /nix/store/*python3*/lib/python3*/site-packages/docs

Notify maintainers

Metadata

Please run nix-shell -p nix-info --run "nix-info -m" and paste the result.

[user@system:~]$ nix-shell -p nix-info --run "nix-info -m"
- system: `"x86_64-linux"`
 - host os: `Linux 5.15.90.1-microsoft-standard-WSL2, NixOS, 23.11 (Tapir), 23.11.20230611.db08187`
 - multi-user?: `yes`
 - sandbox: `yes`
 - version: `nix-env (Nix) 2.15.1`
 - channels(root): `"nixos"`
 - channels(natsukium): `"nixos"`
 - nixpkgs: `/nix/var/nix/profiles/per-user/root/channels/nixos`