Python :如何使用try/except块之外的错误？

class CustomError(Exception):
    pass

def some_function(value):
    if value < 0:
        raise CustomError("Value cannot be negative")
    # ... 其他代码 ...

try:
    some_function(-1)
except CustomError as e:
    print(f"Caught an exception: {e}")

def calculate_average(numbers):
    assert len(numbers) > 0, "List of numbers cannot be empty"
    return sum(numbers) / len(numbers)

try:
    print(calculate_average([]))
except AssertionError as e:
    print(f"Assertion failed: {e}")

import sys

def global_error_handler(exc_type, exc_value, exc_traceback):
    print("Unhandled exception:", exc_value)
    # 这里可以记录错误日志或执行其他操作

sys.excepthook = global_error_handler

# 以下代码将触发全局错误处理器
def trigger_error():
    1 / 0

trigger_error()