Patch #944110: Properly process empty passwords. Fixes #944082.

Lib/urllib2.py

@@ -639,7 +639,7 @@ class AbstractBasicAuthHandler:
 
     def retry_http_basic_auth(self, host, req, realm):
         user,pw = self.passwd.find_user_password(realm, host)
-        if pw:
+        if pw is not None:
             raw = "%s:%s" % (user, pw)
             auth = 'Basic %s' % base64.encodestring(raw).strip()
             if req.headers.get(self.auth_header, None) == auth:

Misc/NEWS

@@ -42,6 +42,8 @@ Core and builtins
 Library
 -------
 
+- Bug #944082: Empty passwords in urllib2 are now supported.
+
 - Bug #926075: Fixed a bug that returns a wrong pattern object
   for a string or unicode object in sre.compile() when a different
   type pattern with the same value exists.