From 43e8681d5cbd6c919e379fe25cccc189827e2d60 Mon Sep 17 00:00:00 2001
From: Alan Pevec <apevec@redhat.com>
Date: Wed, 4 Jan 2012 00:15:05 +0100
Subject: [PATCH] Use updated parallel install versions of epel package
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Use WebOb >= 1.0
and depend on the EPEL parallel installable versions of the package
to satisfy those requirements.
Based on Nova/Glance EPEL patch by Pádraig Brady <P@draigBrady.com>
---
 swift/__init__.py | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/swift/__init__.py b/swift/__init__.py
index 9065801..9600d1e 100644
--- a/swift/__init__.py
+++ b/swift/__init__.py
@@ -1,3 +1,32 @@
+import sys
+import pkg_resources
+
+# If there is a conflicting non egg module,
+# i.e. an older standard system module installed,
+# then replace it with this requirement
+def replace_dist(requirement):
+    try:
+        return pkg_resources.require(requirement)
+    except pkg_resources.VersionConflict:
+        e = sys.exc_info()[1]
+        dist=e.args[0]
+        req=e.args[1]
+        if dist.key == req.key and not dist.location.endswith('.egg'):
+            del pkg_resources.working_set.by_key[dist.key]
+            # We assume there is no need to adjust sys.path
+            # and the associated pkg_resources.working_set.entries
+            return pkg_resources.require(requirement)
+
+replace_dist("WebOb >= 1.0")
+
+replace_dist("PasteDeploy >= 1.5.0")
+# This hack is needed because replace_dist() results in
+# the standard paste module path being at the start of __path__.
+# TODO: See can we get pkg_resources to do the right thing directly
+import paste
+paste.__path__.insert(0, paste.__path__.pop(-1))
+
+
 import gettext