TypeError: '<' not supported between instances of 'dict' and 'dict' when using a custom wheel from a URL

[agriyakhetarpal]

xref duckdb/duckdb-pyodide#6. This is reproducible when using PyScript and Pyoddie. I've filed this issue here as a reminder for us to investigate, as it concerns our behaviour with custom wheels and isn't an issue with PyScript.

Stack trace:

Uncaught (in promise) PythonError: Traceback (most recent call last):
  File "/lib/python3.12/site-packages/micropip/package_manager.py", line 175, in freeze
    return freeze_lockfile(self.repodata_packages, self.repodata_info)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/lib/python3.12/site-packages/micropip/freeze.py", line 16, in freeze_lockfile
    return json.dumps(freeze_data(lockfile_packages, lockfile_info))
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/lib/python3.12/site-packages/micropip/freeze.py", line 27, in freeze_data
    packages = dict(sorted(package_items))
                    ^^^^^^^^^^^^^^^^^^^^^
TypeError: '<' not supported between instances of 'dict' and 'dict'

[agriyakhetarpal]

Testing this a bit: I can't reproduce it on the stable Pyodide console (the latest one won't work as we've broken the ABI now), but I can do so with the linked reproducer in the issue.

We should be able to point to a local Pyodide (and micropip) installation using https://docs.pyscript.net/2025.2.4/user-guide/running-offline/#install-pyodide-locally.

[ryanking13]

Isn't it already reported and fixed by #171?

[agriyakhetarpal]

Ah, thanks, Gyeongjae. I didn't see that one!