diff --git a/requests/utils.py b/requests/utils.py
index 4283560e..57292c35 100644
--- a/requests/utils.py
+++ b/requests/utils.py
@@ -21,8 +21,8 @@ import sys
 from . import __version__
 from . import certs
 from .compat import parse_http_list as _parse_list_header
-from .compat import (quote, urlparse, bytes, str, OrderedDict, urlunparse,
-                     is_py2, is_py3, builtin_str, getproxies, proxy_bypass)
+from .compat import (quote, urlparse, bytes, str, OrderedDict, unquote, is_py2,
+                     builtin_str, getproxies, proxy_bypass)
 from .cookies import RequestsCookieJar, cookiejar_from_dict
 from .structures import CaseInsensitiveDict
 from .exceptions import MissingSchema, InvalidURL
@@ -558,6 +558,7 @@ def get_auth_from_url(url):
     """Given a url with authentication components, extract them into a tuple of
     username,password."""
     if url:
+        url = unquote(url)
         parsed = urlparse(url)
         return (parsed.username, parsed.password)
     else:
diff --git a/test_requests.py b/test_requests.py
index 62307622..1d68c81f 100755
--- a/test_requests.py
+++ b/test_requests.py
@@ -598,6 +598,18 @@ class RequestsTestCase(unittest.TestCase):
         url = 'http://user:pass@complex.url.com/path?query=yes'
         assert ('user', 'pass') == requests.utils.get_auth_from_url(url)
 
+    def test_get_auth_from_url_encoded_spaces(self):
+        url = 'http://user:pass%20pass@complex.url.com/path?query=yes'
+        assert ('user', 'pass pass') == requests.utils.get_auth_from_url(url)
+
+    def test_get_auth_from_url_not_encoded_spaces(self):
+        url = 'http://user:pass pass@complex.url.com/path?query=yes'
+        assert ('user', 'pass pass') == requests.utils.get_auth_from_url(url)
+
+    def test_get_auth_from_url_percent_chars(self):
+        url = 'http://user%user:pass@complex.url.com/path?query=yes'
+        assert ('user%user', 'pass') == requests.utils.get_auth_from_url(url)
+
     def test_cannot_send_unprepared_requests(self):
         r = requests.Request(url=HTTPBIN)
         with pytest.raises(ValueError):