Feature or enhancement

...as discussed inhttps://discuss.python.org/t/an-api-for-controlling-and-introspecting-the-jit/73356. This will include (for 3.14):

• sys._jit.is_available() -> bool: ReturnTrue if the current Python executable supports JIT compilation, andFalse otherwise.
• sys._jit.is_enabled() -> bool: ReturnTrue if JIT compilation is enabled for the current Python process (impliessys._jit.is_available()), andFalse otherwise.
• sys._jit.is_active() -> bool: ReturnTrue if the topmost Python frame is currently executing JIT code, andFalse otherwise.

Linked PRs

• GH-133231: Add JIT utilities insys._jit #133233
• GH-133231: Changes to executor management to support proposedsys._jit module #133287
• [3.13] GH-133231: BackportPYTHON_JIT documentation to 3.13 #133539