--- /usr/lib/gentoolkit/pym/gentoolkit/helpers.py.orig	2005-05-07 19:36:54.308951816 +0200
+++ /usr/lib/gentoolkit/pym/gentoolkit/helpers.py	2005-05-07 19:37:35.400704920 +0200
@@ -94,11 +94,8 @@
 def find_all_installed_packages(prefilter=None):
 	"""Returns a list of all installed packages, after applying the prefilter
 	function"""
-	t = vartree.dbapi.cpv_all()
-	if prefilter:
-		t = filter(prefilter,t)
-	
-	return [Package(x) for x in t]
+	alist = find_all_packages(prefilter)
+	return [x for x in alist if x.is_installed()]
 
 def find_all_uninstalled_packages(prefilter=None):
 	"""Returns a list of all uninstalled packages, after applying the prefilter