ValueError: Can't find a pure Python 3 wheel for 'regex<2024.0.0,>=2023.12.25'. #5493

93Pd9s8Jt · 2025-03-06T19:29:41Z

93Pd9s8Jt
Mar 6, 2025

<html>
  <head>
      <script src="https://cdn.jsdelivr.net/pyodide/v0.27.3/full/pyodide.js"></script>
  </head>
  <body>
    <script type="text/javascript">
      async function main(){
        let pyodide = await loadPyodide();
        await pyodide.loadPackage("micropip");
const micropip = pyodide.pyimport("micropip");
await micropip.install('parsett');

        console.log(pyodide.runPython(`from PTT import parse_title

result = parse_title("The Simpsons S01E01 1080p BluRay x265 HEVC 10bit AAC 5.1 Tigole")
print(result)
`));
      }
      main();
    </script>
  </body>
</html>

Throws the error in the title. I see that regex is listed at https://pyodide.org/en/stable/usage/packages-in-pyodide.html
Does this mean I need to build some earlier version of the wheel myself? (The module I'm trying to import is https://github.com/dreulavelle/PTT)

Answered by agriyakhetarpal

Mar 6, 2025

Yes – at the moment, you'll need to install "regex>=2023.12.25,<2024" yourself beforehand, which I notice isn't possible as regex isn't a pure Python package on PyPI an. You would need to build and use your own Pyodide distribution with an older version of regex, or switch to an older version of Pyodide that satisfies this constraint with the regex version. This will change—and the limitation will likely be dropped—with Pyodide 0.28 (see #4918).

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agriyakhetarpal · 2025-03-06T20:50:37Z

agriyakhetarpal
Mar 6, 2025
Maintainer

Yes – at the moment, you'll need to install "regex>=2023.12.25,<2024" yourself beforehand, which I notice isn't possible as regex isn't a pure Python package on PyPI an. You would need to build and use your own Pyodide distribution with an older version of regex, or switch to an older version of Pyodide that satisfies this constraint with the regex version. This will change—and the limitation will likely be dropped—with Pyodide 0.28 (see #4918).

0 replies

93Pd9s8Jt · 2025-03-07T19:22:06Z

93Pd9s8Jt
Mar 7, 2025
Author

What's the timeline on 0.28 coming out?

2 replies

agriyakhetarpal Mar 7, 2025
Maintainer

We're planning it by the end of April, hopefully there will be no delays!

93Pd9s8Jt Mar 7, 2025
Author

Much appreciated. Thanks for your work on this.

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