Minor sandbox update with Python 3_11 and Lua-plus 5_5

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Rodion (admin)     2026-01-08 18:54:53
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Just to inform that "sandbox" on the site was slightly updated - not it runs Python 3.11 (actually latest PyPy I found) and also Lua is presented in Lua-plus form - also newest 5.5 version with my meek amends to enrich syntax, particularly compound assignments (+=, *=, ..= etc) and alternative spelling for not-equals (!= should work along with ~=).

Please don't hesitate to report any suspected issues.

Also I dare to ask Python gurus - as I see that PyPy is lagging behind the mainstream (for 3 minor version points) - and probably they will not soon support "freedom of GIL" provided in Python 3.14 - I wonder, how much does it affect us, in your opinion? Should we instead switch to CPython?

gardengnome     2026-01-08 19:10:29
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Thanks! Regarding Python, I do not mind either way. I can always run my code locally if I want to use a specific version, particular features or a non-standard library.

Dan Nagle     2026-01-09 16:38:35

PyPy's JIT compilation and improved garbage collection makes it more memory efficient than CPython for use on the server.

I wouldn't consider switching out the server implementation unless your intention is to add problems that require multithreading.

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