Python 3.12 brings major improvements in terms of performance, syntax enhancements, and security. Let's explore what's new in this release!
Python 3.12 includes enhancements that improve the speed of CPython by optimizing internals, bytecode execution, and memory usage.
Benchmarks suggest a 5-10% speed improvement in real-world applications compared to Python 3.11.
A major refactor of frame objects has reduced memory overhead and improved function call performance.
import dis
def sample_function():
return sum([i for i in range(10)])
print(dis.dis(sample_function)) # Improved bytecode execution
Python 3.12 makes debugging easier with enhanced f-strings
.
x, y = 10, 20
print(f"{x + y = }") # Output: x + y = 30
Type annotations have improved, making static typing more powerful.
from typing import Self
class Example:
def chain(self) -> Self:
return self # Uses Self instead of Example
except*
Syntax for Exception GroupsIntroduces structured error handling for handling multiple exceptions.
try:
raise ExceptionGroup("Errors", [ValueError("Invalid"), TypeError("Wrong Type")])
except* ValueError as e:
print("Caught ValueError:", e)
except* TypeError as e:
print("Caught TypeError:", e)
distutils
module is fully removed; use setuptools
instead.Python 3.12 is a faster, more efficient, and more developer-friendly update with notable syntax improvements and performance gains. Upgrade today and take advantage of these powerful new features!