* relax add_vertex a bit

2005-07-18 00:47:00 +00:00
parent adb2974c26
commit 7b4d59527c
1 changed files with 1 additions and 1 deletions
@@ -9,7 +9,7 @@ class digraph(object):
        #self.__edata = {}

    def add_vertex(u, data = None):
-        assert not u in self.__v
+        #assert not u in self.__v
        self.__v.add(u)
        if data!=None:
            self.__vdata[u] = data