[jhbuild] Add support for pre-2.5 ElementTree location

[Frederic Peters <fpeters src gnome org>]

commit dde474fbe9b8b23ed2fb696a7d5e0f86ad19c2a4
Author: FrÃdÃric PÃters <fpeters 0d be>
Date:   Tue Jul 19 13:19:36 2011 +0200

    Add support for pre-2.5 ElementTree location

 jhbuild/utils/packagedb.py |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)
---
diff --git a/jhbuild/utils/packagedb.py b/jhbuild/utils/packagedb.py
index b74fba2..491cb06 100644
--- a/jhbuild/utils/packagedb.py
+++ b/jhbuild/utils/packagedb.py
@@ -22,7 +22,12 @@ import sys
 import time
 import logging
 import xml.dom.minidom as DOM
-import xml.etree.ElementTree as ET
+
+try:
+    import xml.etree.ElementTree as ET
+except ImportError:
+    import elementtree.ElementTree as ET
+
 from StringIO import StringIO
 
 def _parse_isotime(string):