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+# urllib3/exceptions.py
+# Copyright 2008-2012 Andrey Petrov and contributors (see CONTRIBUTORS.txt)
+#
+# This module is part of urllib3 and is released under
+# the MIT License: http://www.opensource.org/licenses/mit-license.php
+
+
+## Base Exceptions
+
+class HTTPError(Exception):
+ "Base exception used by this module."
+ pass
+
+
+class PoolError(HTTPError):
+ "Base exception for errors caused within a pool."
+ def __init__(self, pool, message):
+ self.pool = pool
+ HTTPError.__init__(self, "%s: %s" % (pool, message))
+
+
+class SSLError(HTTPError):
+ "Raised when SSL certificate fails in an HTTPS connection."
+ pass
+
+
+class DecodeError(HTTPError):
+ "Raised when automatic decoding based on Content-Type fails."
+ pass
+
+
+## Leaf Exceptions
+
+class MaxRetryError(PoolError):
+ "Raised when the maximum number of retries is exceeded."
+
+ def __init__(self, pool, url):
+ message = "Max retries exceeded with url: %s" % url
+ PoolError.__init__(self, pool, message)
+
+ self.url = url
+
+
+class HostChangedError(PoolError):
+ "Raised when an existing pool gets a request for a foreign host."
+
+ def __init__(self, pool, url, retries=3):
+ message = "Tried to open a foreign host with url: %s" % url
+ PoolError.__init__(self, pool, message)
+
+ self.url = url
+ self.retries = retries
+
+
+class TimeoutError(PoolError):
+ "Raised when a socket timeout occurs."
+ pass
+
+
+class EmptyPoolError(PoolError):
+ "Raised when a pool runs out of connections and no more are allowed."
+ pass
+
+
+class ClosedPoolError(PoolError):
+ "Raised when a request enters a pool after the pool has been closed."
+ pass
+
+
+class LocationParseError(ValueError, HTTPError):
+ "Raised when get_host or similar fails to parse the URL input."
+
+ def __init__(self, location):
+ message = "Failed to parse: %s" % location
+ super(LocationParseError, self).__init__(self, message)
+
+ self.location = location