manipulation_set.py 文件源码

def parser(self):
        manipulation = (Unpack.parser() | Mutate.parser() | Flatten.parser() |
                        Select.parser() | Remove.parser() | GroupedSummary.parser() |
                        DropNa.parser())
        manipulation_set = pp.delimitedList(manipulation, delim='>>')
        return manipulation_set