spylang/spy

Fix the playground

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#381 opened on Feb 3, 2026

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help wantedplayground

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Description

The SPy playground is broken and fails with this errror:

Installing spy... Traceback (most recent call last):
  File "/lib/python312.zip/_pyodide/_base.py", line 597, in eval_code_async
    await CodeRunner(
  File "/lib/python312.zip/_pyodide/_base.py", line 413, in run_async
    await coroutine
  File "<exec>", line 18, in <module>
  File "/lib/python3.12/site-packages/micropip/_commands/install.py", line 142, in install
    await transaction.gather_requirements(requirements)
  [...]
ValueError: Requested 'packaging>=24.0', but packaging==23.2 is already installed

I don't 100% know what's happening, but I guess it's something along these lines:

  1. pyproject.toml specifies pinned versions
  2. indirect dependencies are not pinned
  3. pyodide comes with its own version of packaging (I'm not sure about this one, we should double check)
  4. some indirect dependencies has been updated and now they conflict with pyodide's builtin packaging

Contributor guide

Research direction
Investigate the dependency conflict between pyodide's built in packaging and the pinned versions in pyproject.toml. Check if updating pyproject.toml to accommodate pyodide's packaging version resolves the issue, or consider using a virtual environment or different installation method.
Tech stack
python
Domain
backend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
PythonPyodide
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70