python@3.{9,10,11}: fix a syntax error in sitecustomize.py

[IzumiSy]

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Fix: #133488

[carlocab]

Please use Homebrew style when writing your commit messages, as indicated in the style guide. For example:

python@3.11: fix syntax error in sitecustomize.py

[Bo98]

I don't think this is the correct fix. The second site.PREFIXES line should reference new_exec_prefix instead.

[IzumiSy]

I don't think this is the correct fix. The second site.PREFIXES line should reference new_exec_prefix instead.

This PR just aims at fixing runtime errors, so I'm not really familiar with those code around my changes 🙏

I am fine to get more commits by others with knowledge to make this PR valid.

[IzumiSy]

@Bo98
I have added commits using new_exec_prefix as you commented so please review the new changes.

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[IzumiSy]

@Bo98 @carlocab
It looks like CI jobs are cancelled in the middle of running. How do I rerun them?

[IzumiSy]

@Bo98
Ping. Could you review and merge this PR? 🙏

[Bo98]

Thanks!

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