requests的所有异常归类：
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)
[docs]classRequestException(IOError):
"There was an ambiguous exception that occurred while handling yourrequest."
class
HTTPError
(
RequestException
):
"""An HTTP error occurred."""
[docs]
class
ConnectionError
(
RequestException
):
"""A Connection error occurred."""
classProxyError(ConnectionError):
"""A proxy error occurred."""
classSSLError(ConnectionError):
"""An SSL error occurred."""
[docs]
class
Timeout
(
RequestException
):
"""The request timed out.
Catching this error will catch both
:exc:`~requests.exceptions.ConnectTimeout` and
:exc:`~requests.exceptions.ReadTimeout` errors.
"""
classConnectTimeout(ConnectionError,Timeout):
[docs]\
"""The request timed out while trying to connect to the
remote server.
Requests that produced this error are safe to retry.
"""
[docs]
class
ReadTimeout
(
Timeout
):
"""The server did not send any data in the allotted amount of time."""
[docs]
class
URLRequired
(
RequestException
):
"""A valid URL is required to make a request."""
[docs]
class
TooManyRedirects
(
RequestException
):
"""Too many redirects."""
classMissingSchema(RequestException,ValueError):
"""The URL schema (e.g. http or https) is missing."""
classInvalidSchema(RequestException,ValueError):
"""See defaults.py for valid schemas."""
classInvalidURL(RequestException,ValueError):
"""The URL provided was somehow invalid."""
classInvalidHeader(RequestException,ValueError):
"""The header value provided was somehow invalid."""
classInvalidProxyURL(InvalidURL):
"""The proxy URL provided is invalid."""
classChunkedEncodingError(RequestException):
"""The server declared chunked encoding but sent an invalid chunk."""
classContentDecodingError(RequestException,BaseHTTPError):
"""Failed to decode response content"""
classStreamConsumedError(RequestException,TypeError):
"""The content for this response was already consumed"""
classRetryError(RequestException):
"""Custom retries logic failed"""
classUnrewindableBodyError(RequestException):
"""Requests encountered an error when trying to rewind a body"""
# Warnings
classRequestsWarning(Warning):
"""Base warning for Requests."""
pass
classFileModeWarning(RequestsWarning,DeprecationWarning):
"""A file was opened in text mode, but Requests determined its binary length."""
pass
classRequestsDependencyWarning(RequestsWarning):
"""An imported dependency doesn't match the expected version range."""
pass