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diff --git a/requests/packages/urllib3/exceptions.py b/requests/packages/urllib3/exceptions.py
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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
+
+
+## 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 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