Conda/bioconda package missing TUI runtime deps (textual, rich-pixels, pillow) → snakesee watch fails with ModuleNotFoundError

[yfarjoun]

Summary

The bioconda snakesee (0.8.1, noarch) declares only defopt, orjson, python, rich, snakemake as runtime deps, but pyproject.toml also requires textual, rich-pixels, and pillow (the TUI stack).
So a clean conda/pixi install can't launch the TUI. It only appears to work in environments that already contain textual from another package.

Reproduce (macOS / osx-arm64, fresh isolated env)

  $ pixi global install -c conda-forge -c bioconda snakesee      # 0.8.1
  $ ~/.pixi/envs/snakesee/bin/python -c "import textual"
  ModuleNotFoundError: No module named 'textual'                  
  
  $ cd <any workflow dir containing a .snakemake/ directory>
  $ snakesee watch .
  Traceback (most recent call last):
    ... 
    File ".../snakesee/tui/app.py", line 11, in <module>
      from textual.app import App
  ModuleNotFoundError: No module named 'textual'

Because the package is noarch, this reproduces on any platform in a clean env. (A non-isolated env that already has textual masks the bug — which is why an existing dev env may "work".)

Root cause

The bioconda recipe's run: requirements are out of sync with pyproject.toml — three dependencies are declared upstream but missing from the package:

dependency	pyproject.toml	bioconda run:
python (>=3.11)	✓	✓
rich	✓	✓
defopt	✓	✓
snakemake	✓	✓
orjson	✓	✓
textual	✓	✗ missing
rich-pixels	✓	✗ missing
pillow	✓	✗ missing

Conda resolvers use the recipe metadata, not the wheel/pyproject.toml, so the three TUI dependencies are silently never installed.

Suggested fix

Add to recipes/snakesee/meta.yaml run: and bump the build number:
- textual >=0.80.0
- rich-pixels >=3.0.1
- pillow >=10.0.0
Caveat: pillow is on conda-forge, but textual and rich-pixels appear to be PyPI-only (not on conda-forge) — so they'd need conda-forge feedstocks first, or the recipe/distribution strategy
adjusted. Keeping run: in sync with pyproject.toml (e.g. via grayskull) would prevent recurrence.

[nh13]

Fix is in progress across two PRs:

• Update snakesee: add missing TUI runtime deps (textual, rich-pixels, pillow) bioconda/bioconda-recipes#66333 — adds the missing TUI runtime deps (textual, rich-pixels, pillow) to the snakesee recipe, bumps the build number, and hardens the recipe test so this drift fails CI in future.
• Add rich-pixels conda-forge/staged-recipes#33740 — adds rich-pixels to conda-forge (the only one of the three deps not already packaged there). This must merge first, since bioconda resolves against conda-forge; textual and pillow are already on conda-forge.

Once #33740 lands and the feedstock builds, the bioconda PR CI will go green and can merge.

[yfarjoun]

thanks!