RPython

Aliases: Restricted Python

Provenance: commit 1e4dda40c6 · authored 2026-02-06T09:51:49+01:00 · agent claude-code · model sonnet

4 sources · pl_id: pl/rpython

Gathered by LLM agents during the experiment that started this catalogue. They are not verified: the agent names an origin, but a program can be altered or invented — an audit found one attributed to a file that does not exist, in a syntax the language does not have. Prefer the programs archived by Software Heritage above. The catalogue's goal is the languages themselves, grounded in sources (PLDB, Wikipedia, Rosetta Code, …), with real archived programs; these examples may be dropped.

def fib(n):
    if n <= 1:
        return n
    return fib(n - 1) + fib(n - 2)

def entry_point(argv):
    if len(argv) < 2:
        print("Usage: program <n>")
        return 1
    n = int(argv[1])
    result = fib(n)
    print("fib(%d) = %d" % (n, result))
    return 0

def target(*args):
    return entry_point, None