recipe-578061.py 文件源码

def createSequences(self, fromPosition, toPosition):
        """ using the permutation of all functions to generate sequences
            @param fromPosition start position/index/value
            @param toPosition end position/index/value
        """
        self.sequences = set()
        for r in range(1,len(self.registeredFunctions)):
            for functions in itertools.permutations(self.registeredFunctions, r):
                position = fromPosition
                sequence = []
                while position <= toPosition:
                    value = position
                    for function in functions:
                        value = function(value)
                    sequence.append(value)
                    position += 1
                self.sequences.add(Sequence(sequence[0:], self.combineFunctions(functions)))