Python 313 Release Notes Verified ((top))

Exception tracebacks and prompts are now colorized by default, making it significantly easier to scan for errors during live coding.

The interactive interpreter (REPL) has undergone its most significant makeover in years. Is Python Really That Slow? - miguelgrinberg.com python 313 release notes verified

Python 3.13 offers an official experimental build mode that disables the Global Interpreter Lock (GIL). Exception tracebacks and prompts are now colorized by

: If you misspell a keyword argument in a function call, the traceback will suggest the correct one (e.g., "Did you mean 'maxsplit'?"). Under the Hood: Experimental Performance Boosts python 313 release notes verified