Some interface changes

Made qt-frontend work mostly with PyQt-4.2

1 files changed, 12 insertions, 0 deletions

diff --git a/portato/backend/system_interface.py b/portato/backend/system_interface.py
index 40834f9..9af0b33 100644
--- a/portato/backend/system_interface.py
+++ b/portato/backend/system_interface.py
@@ -21,6 +21,18 @@ class SystemInterface:
 		@rtype: string[]"""
 
 		raise NotImplementedError
+
+	def cpv_matches (self, cpv, criterion):
+		"""Checks whether a cpv matches a specific criterion.
+
+		@param cpv: cpv to check
+		@type cpv: string
+		@param criterion: criterion to check against
+		@type criterion: string
+		@returns: match result
+		@rtype: boolean"""
+
+		raise NotImplementedError
 	
 	def find_best(self, list):
 		"""Returns the best package out of a list of packages.