@classmethod def from_fahrenheit(cls, fahrenheit: float) -> Self: celsius_val = (fahrenheit - 32) * 5/9 return cls(celsius_val)
def demonstrate_exception_groups(): """Python 3.11 introduced ExceptionGroup and except*.""" def fail_with_errors(): errors = [] for i in range(3): try: if i == 0: raise ValueError("Bad value") elif i == 1: raise TypeError("Wrong type") else: raise ZeroDivisionError("Divide by zero") except Exception as e: errors.append(e) if errors: raise ExceptionGroup("Multiple failures", errors)
# Self type t = Temperature(25) print(t)
def __repr__(self) -> str: return f"Temperature({self.celsius}°C)" def parse_toml_config(file_path: str) -> dict: """Python 3.11 adds tomllib to standard library (for reading TOML).""" with open(file_path, "rb") as f: return tomllib.load(f)
Below is a piece of Python code demonstrating a feature introduced or stable in , like Self type hint, ExceptionGroup , or tomllib . # demo_python_3.11_features.py # Compatible with Python 3.11.9 import tomllib from typing import Self
Since “python 11.9” isn't a standard Python release, I’ll assume you mean (a specific micro version) or exercise 11.9 from a learning resource.