Error in Portage 1.9.5???

[jbetten]

I just emerged portage 1.9.5, without any problems, as soon as it finished I tried emergeing other things, all of which failed with this error:
!!! Invalid token (not "=") use
Traceback (most recent call last):
File "/usr/sbin/ebuild", line 21, in ?
import portage
File "/usr/lib/python2.2/site-packages/portage.py", line 3202, in ?
db["/"]["porttree"]=portagetree("/",virts)
File "/usr/lib/python2.2/site-packages/portage.py", line 2375, in __init__
self.portroot=settings["PORTDIR"]
File "/usr/lib/python2.2/site-packages/portage.py", line 631, in __getitem__
self.populate()
File "/usr/lib/python2.2/site-packages/portage.py", line 620, in populate
useorder=self["USE_ORDER"]
File "/usr/lib/python2.2/site-packages/portage.py", line 638, in __getitem__
if x.has_key(mykey):
AttributeError: 'NoneType' object has no attribute 'has_key'


Has anyone had the same problem? Is there anyway to revert back to an older version of portage, without using emerge or ebuild?