Fix AttributeError: 'HTTPError' object has no attribute 'reason'

Not every version of urllib2 supplies a reason object on the
HTTPError exception that it throws from urlopen().  Work around
this by using str(e) instead and hope the string formatting includes
sufficient information.

Change-Id: I0f4586dba0aa7152691b2371627c951f91fdfc8d
Signed-off-by: Shawn O. Pearce <sop@google.com>

git_config.py

@@ -26,7 +26,6 @@ import time
 import urllib2
 
 from signal import SIGTERM
-from urllib2 import urlopen, HTTPError
 from error import GitError, UploadError
 from trace import Trace
 
@@ -578,7 +577,7 @@ class Remote(object):
         self._review_port = info[2]
       else:
         try:
-          info = urlopen(u).read()
+          info = urllib2.urlopen(u).read()
           if info == 'NOT_AVAILABLE':
             raise UploadError('%s: SSH disabled' % self.review)
           if '<' in info:
@@ -590,15 +589,15 @@ class Remote(object):
           self._review_protocol = 'ssh'
           self._review_host = info.split(" ")[0]
           self._review_port = info.split(" ")[1]
-        except urllib2.URLError, e:
-          raise UploadError('%s: %s' % (self.review, e.reason[1]))
-        except HTTPError, e:
+        except urllib2.HTTPError, e:
           if e.code == 404:
             self._review_protocol = 'http-post'
             self._review_host = None
             self._review_port = None
           else:
-            raise UploadError('Upload over ssh unavailable')
+            raise UploadError('Upload over SSH unavailable')
+        except urllib2.URLError, e:
+          raise UploadError('%s: %s' % (self.review, str(e)))
 
         REVIEW_CACHE[u] = (
           self._review_protocol,

project.py

@@ -1491,7 +1491,7 @@ class Project(object):
             msg = ''
         raise DownloadError('HTTP %s%s' % (e.code, msg))
       except urllib2.URLError, e:
-        raise DownloadError('%s (%s)' % (e.reason, req.get_host()))
+        raise DownloadError('%s: %s ' % (req.get_host(), str(e)))
 
       p = None
       try: