Python 3.13 News November 2025 2021

python3.13 -c "import sys; assert sys._is_gil_enabled()" || echo "GIL disabled"

Status: Enabled by default on x86-64 and ARM64 python 3.13 news november 2025

# Python 3.12: NameError: name 'prnt' is not defined # Python 3.13: NameError: name 'prnt' is not defined. Did you mean 'print'? python3

Just-In-Time (JIT) compiler introduced in 3.13 provides the foundation for massive performance gains, now being further optimized in the concurrent 3.14 release cycle. Improved Interactive Shell: The REPL received a total "glow-up" with multiline editing, history preservation across sessions, and colorized tracebacks by default, significantly improving the daily developer experience. Python documentation +3 Performance Gains & Adoption (Late 2025) Analysis from JetBrains in late 2025 highlighted significant migration trends: The JetBrains Blog Speed & Memory: Upgrading from 3.11 to 3.13 offers a Improved Interactive Shell: The REPL received a total

pip install ruff ruff check --select UP .