def knowns(self):
knowns = []
for element in self.elements:
if element.hasValue():
value = element.getValue()
if value in knowns:
raise LogicError(value, knowns)
knowns.append(value)
knowns.sort()
return Set(knowns)
def coords(self, knownValue):
for element in self.elements:
if element.hasValue():
if element.getValue()==knownValue:
return element.row, element.col
def iterUnknownElements(self):
for row in self._maxSize:
for col in self._maxSize:
element = self._findElement(row, col)
if not element.hasValue():
yield element
