Merged revisions 82068 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

........
  r82068 | senthil.kumaran | 2010-06-18 20:38:18 +0530 (Fri, 18 Jun 2010) | 3 lines

  Fix Issue1368368 - prompt_user_passwd() in FancyURLopener masks 401 Unauthorized error page
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diff --git a/Lib/urllib/request.py b/Lib/urllib/request.py
index 95e8e33..e85b65c 100644
--- a/Lib/urllib/request.py
+++ b/Lib/urllib/request.py
@@ -1870,7 +1870,8 @@
         else:
             return self.http_error_default(url, fp, errcode, errmsg, headers)
 
-    def http_error_401(self, url, fp, errcode, errmsg, headers, data=None):
+    def http_error_401(self, url, fp, errcode, errmsg, headers, data=None,
+            retry=False):
         """Error 401 -- authentication required.
         This function supports Basic authentication only."""
         if not 'www-authenticate' in headers:
@@ -1886,13 +1887,17 @@
         if scheme.lower() != 'basic':
             URLopener.http_error_default(self, url, fp,
                                          errcode, errmsg, headers)
+        if not retry:
+            URLopener.http_error_default(self, url, fp, errcode, errmsg,
+                    headers)
         name = 'retry_' + self.type + '_basic_auth'
         if data is None:
             return getattr(self,name)(url, realm)
         else:
             return getattr(self,name)(url, realm, data)
 
-    def http_error_407(self, url, fp, errcode, errmsg, headers, data=None):
+    def http_error_407(self, url, fp, errcode, errmsg, headers, data=None,
+            retry=False):
         """Error 407 -- proxy authentication required.
         This function supports Basic authentication only."""
         if not 'proxy-authenticate' in headers:
@@ -1908,6 +1913,9 @@
         if scheme.lower() != 'basic':
             URLopener.http_error_default(self, url, fp,
                                          errcode, errmsg, headers)
+        if not retry:
+            URLopener.http_error_default(self, url, fp, errcode, errmsg,
+                    headers)
         name = 'retry_proxy_' + self.type + '_basic_auth'
         if data is None:
             return getattr(self,name)(url, realm)