# Before 3.13: ~4.5 sec # After 3.13 with JIT: ~3.2 sec def compute(): total = 0 for i in range(50_000_000): total += i return total
Remember that the JIT is not active by default in all distributions. Use the --enable-experimental-jit flag during compilation to leverage these November performance peaks. Refined Interactive Shell (REPL) python 3.13 news november 2025
| Removed in 3.13 | Replacement | |----------------|-------------| | cgi and cgitb modules | Use wsgiref , FastAPI , or email library | | lib2to3 and 2to3 tool | No longer needed (Python 2 EOL 2020) | | asyncio.iscoroutinefunction | inspect.iscoroutinefunction | | typing.IO / typing.TextIO | Use collections.abc versions | # Before 3
Python 3.13 is scheduled for final release in October 2025 (PEP 719). By November 2025, this would be the stable, recommended version for production. By November 2025, this would be the stable,