import requests from requests.exceptions import Timeout def download_resource(url): try: hds = {"User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36"} response = requests.get(url, timeout=5, headers=hds) return response.content except Timeout: # 这里可以抛出自定义异常，或者返回特定的错误信息 raise Exception('连接超时，请检查你的网络连接或稍后再试') print(download_resource("https://www.xxx.com"))

BaseException ├── BaseExceptionGroup ├── GeneratorExit ├── KeyboardInterrupt ├── SystemExit └── Exception ├── ArithmeticError │ ├── FloatingPointError │ ├── OverflowError │ └── ZeroDivisionError ├── AssertionError ├── AttributeError ├── BufferError ├── EOFError ├── ExceptionGroup [BaseExceptionGroup] ├── ImportError │ └── ModuleNotFoundError ├── LookupError │ ├── IndexError │ └── KeyError ├── MemoryError ├── NameError │ └── UnboundLocalError ├── OSError │ ├── BlockingIOError │ ├── ChildProcessError │ ├── ConnectionError │ │ ├── BrokenPipeError │ │ ├── ConnectionAbortedError │ │ ├── ConnectionRefusedError │ │ └── ConnectionResetError │ ├── FileExistsError │ ├── FileNotFoundError │ ├── InterruptedError │ ├── IsADirectoryError │ ├── NotADirectoryError │ ├── PermissionError │ ├── ProcessLookupError │ └── TimeoutError ├── ReferenceError ├── RuntimeError │ ├── NotImplementedError │ └── RecursionError ├── StopAsyncIteration ├── StopIteration ├── SyntaxError │ └── IndentationError │ └── TabError ├── SystemError ├── TypeError

import requests def connect_expection(url): try: respond = requests.get(url, timeout=3) except requests.exceptions.Timeout: print('连接超时,请重试,或检查是否有访问权限') connect_expection('http://facebook.com')

# 通过func_timeout装饰器来解决函数执行超时 from func_timeout import func_set_timeout import func_timeout @func_set_timeout(3)#设定函数超执行时间_ def task(): print('下载资源文件') pass # Python 下载网络资源模块 time.sleep(5) return '执行成功_未超时' if __name__ == '__main__': try: print(task()) #若调用函数超时自动走异常(可在异常中写超时逻辑处理) except func_timeout.exceptions.FunctionTimedOut: print('下载资源超时')