使用python对数据进行管道式处理

from functools import reduce

from fastcore.transform import Pipeline


def lower(string_input):
    """
    大写转小写
    :param string_input:
    :return:
    """
    return string_input.lower()


def remove_(string_input):
    """
    去除空格
    :param string_input:
    :return:
    """
    return string_input.replace("-", " ")


def strip(string_input):
    """
    去除回车字符
    :param string_input:
    :return:
    """

    return string_input.strip("\n")


input_string = "IT-is-a-test\n"
pipe = Pipeline([lower, remove_, strip])
output = pipe(input_string)
print(output)
x = reduce(lambda x, y: y(x), [lower, remove_, strip], input_string)
print(x)


def my_reduce(funcs, init):
    r = init
    for func in funcs:
        r = func(init)
        init = r
    return r


r = my_reduce([lower, remove_, strip], input_string)
print(r)