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PEP 762 – REPL-acing the default REPL

(peps.python.org)
89 points Numerlor | 1 comments | 14 Oct 24 19:25 UTC | HN request time: 0.196s | source
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behnamoh ◴[15 Oct 24 18:23 UTC] No.41851517[source]▶
I want a Lisp-like REPL for my Python programs that is available to the user who runs my compiled Python program (so, I want compilation as well). The user will be able to interact with my program (instead of just running the main function), change function definitions, etc. and mold the program to their specific use case while it's running.
replies(5): >>41851780 #>>41852247 #>>41852604 #>>41853249 #>>41853727 #
1. zahlman ◴[15 Oct 24 22:21 UTC] No.41853727[source]▶
>the user who runs my compiled Python program (so, I want compilation as well).

You'll be happy to know that Python .pyc files, which are created and cached by default, are the equivalent of Java's .class files or C#'s bytecode (which gets embedded inside an .exe wrapper but is still fundamentally not native code).

>The user will be able to... change function definitions, etc.

Of course, this requires recompilation in some form (in Lisp, too - `eval` is not that magic).

That said, if `import`ing your code at the REPL and then calling functions, setting attributes etc. (which has been possible in Python forever) isn't good enough, I really don't understand your use case.