| IOError | RequestException | HTTPError(RequestException) | |
| UnrewindableBodyError(RequestException) | |||
| RetryError(RequestException) | |||
| ConnectionError(RequestException) | ProxyError(ConnectionError) | ||
| SSLError(ConnectionError) | |||
| ConnectTimeout(ConnectionError, Timeout) | |||
| Timeout(RequestException) | ReadTimeout | ||
| URLRequired(RequestException) | |||
| TooManyRedirects(RequestException) | |||
| MissingSchema(RequestException, ValueError) | |||
| InvalidSchema(RequestException,ValueError) | |||
| InvalidURL(RequestException,ValueError) | |||
| InvalidHeader(RequestException,ValueError) | |||
| ChunkedEncodingError(RequestException) | |||
| StreamConsumedError(RequestException,TypeError) | |||
| ContentDecodingError(RequestException,BaseHTTPError) | |||
| RequestsWarning(Warning) | FileModeWarning(RequestsWarning, DeprecationWarning) |
异常官方文档：http://www.python-requests.org/en/master/_modules/requests/exceptions/#RequestException