async is a reserved keyword in Python (since Python 3.7)

[Stricken1670]

+python_fakeinstall:3> python -m installer '--destdir=/usr/pkgmk/work/visidata/pkg' dist/visidata-0.41-py3-none-any.whl
*** Error compiling '/usr/pkgmk/work/visidata/pkg/usr/local/lib/python3.13/site-packages/visidata/vd.py'...
  File "/usr/local/lib/python3.13/site-packages/visidata/vd.py", line 1195
    def async(func):
        ^^^^^
SyntaxError: invalid syntax

Claude's idea with that:

This error is occurring because async is a reserved keyword in Python (since Python 3.7), and it cannot be used as a function name or decorator name. The VisiData code appears to be using async as a decorator name, which is causing the syntax error during installation.
This is likely an older version of VisiData (version 0.41) that was written before async became a keyword. The modern way to handle this would be to rename the decorator to something like async_def, asynchronous, or run_async.
You have a few options:

• Install an older version of Python (pre-3.7) if you absolutely need this specific version of VisiData
• Install a newer version of VisiData that has fixed this syntax issue
• If you need to modify the code locally, you could patch the file to rename the async decorator

Would you like me to help you with any of these approaches?

I went with the renaming solution, and as a proof of concept ran:

    sed -i 's|@async|@async2|' $(grep -rl '@async' .)
    sed -i 's|def async|def async2|' $(grep -rl 'def async' .)

After which the error was gone, and vd works as expected. I suppose someone can improve on my brutal handiwork, being a mere mortal sysadmin.