diff -r 11e17f300447 -r b888750b6ae5 virtualenv/res/lib/lib_create_env.py
--- a/virtualenv/res/lib/lib_create_env.py	Fri Jun 08 18:51:00 2012 +0200
+++ b/virtualenv/res/lib/lib_create_env.py	Sat Jun 09 01:57:40 2012 +0200
@@ -36,6 +36,7 @@
     'SSH': {'setup': 'ssh', 'url':'http://pypi.python.org/packages/source/s/ssh/ssh-1.7.14.tar.gz#md5=4cdd0549ef4699bd67b96264d3b21427', 'local':'ssh-1.7.14.tar.gz'},
     'FABRIC': {'setup': 'fabric', 'url':'https://github.com/fabric/fabric/tarball/1.4.2', 'local':'fabric-1.4.2.tar.gz'},
     'MERCURIAL': {'setup': 'mercurial', 'url':'http://mercurial.selenic.com/release/mercurial-2.2.2.tar.gz', 'local':'mercurial-2.2.2.tar.gz'},
+    'PYTZ': {'setup':'pytz', 'url':'http://pypi.python.org/packages/source/p/pytz/pytz-2012c.tar.bz2', 'local':'pytz.tar.bz2'},
 }
 
 if system_str == 'Windows':