Merge branch 'develop' into threaded-page-gettingthreaded-page-getting

1 files changed, 5 insertions, 2 deletions

diff --git a/pip/vcs/bazaar.py b/pip/vcs/bazaar.py
index d5419b2ff..86f4bbc62 100644
--- a/pip/vcs/bazaar.py
+++ b/pip/vcs/bazaar.py
@@ -19,8 +19,11 @@ class Bazaar(VersionControl):
 
     def __init__(self, url=None, *args, **kwargs):
         super(Bazaar, self).__init__(url, *args, **kwargs)
-        urlparse.non_hierarchical.extend(['lp'])
-        urlparse.uses_fragment.extend(['lp'])
+        # Python >= 2.7.4, 3.3 doesn't have uses_fragment or non_hierarchical
+        # Register lp but do not expose as a scheme to support bzr+lp.
+        if getattr(urlparse, 'uses_fragment', None):
+            urlparse.uses_fragment.extend(['lp'])
+            urlparse.non_hierarchical.extend(['lp'])
 
     def parse_vcs_bundle_file(self, content):
         url = rev = None