Esempio n. 1
0
 def walk(self, callback, chain):
     res = callback(self, chain)
     assert res in (True, False), "Walk function must return boolean, not %r" % (res, )
     if not res:
         return False
     chain.append(self)
     self._walk(callback, chain)
     chain.pop()
Esempio n. 2
0
 def walk(self, callback, chain):
     res = callback(self, chain)
     assert res in (True, False), "Walk function must return boolean, not %r" % (res, )
     if not res:
         return False
     chain.append(self)
     self._walk(callback, chain)
     chain.pop()