如何使用字典调用 Python 方法

Question

我正在尝试创建一个转换数据的方法列表（或字典）。例如，我有如下数据：

data = [

{'Result': 1, 'Reason1': False, 'Reason2': 1},

{'Result': 0, 'Reason1': False, 'Reason2':'haha'},

{'Result': 0, 'Reason1': True, 'Reason2': 'hehe'},

{'Result': 0, 'Reason1': True, 'Reason2': 0},

]

def rule_1(datum):

    modified_datum = datum

    if datum['Reason1']:

        modified_datum['Result'] = 1 # always set 'Result' to 1 whenever 'Reason1' is True

    else:

        modified_datum['Result'] = 1 # always set 'Result' to 0 whenever 'Reason1' is False

    return modified_datum

def rule_2(datum):

    modified_datum = datum

    if type(datum['Reason2']) is str:

        modified_datum['Result'] = 1 # always set 'Result' to 1 whenever 'Reason2' is of type 'str'

    elif type(datum['Reason2']) is int:

        modified_datum['Result'] = 2 # always set 'Result' to 2 whenever 'Reason2' is of type 'int'

    else:

        modified_datum['Result'] = 0

    return modified_datum

# There can be 'rule_3', 'rule_4' and so on... Also, these rules may have different method signatures (that is, they may take in more than one input parameter)

rule_book = [rule_2, rule_1] # I want to apply rule_2 first and then rule_1

processed_data = []

for datum in data:

    for rule in rule_book:

        # Like someone mentioned here, the line below works, but what if I want to have different number of input parameters for rule_3, rule_4 etc.?

        # processed_data.append(rule(datum))

我认为Stack Overflow 上的这个答案与我想要做的非常接近，但我想向有 Python 经验的人学习如何最好地处理它。我用“调度”标记了这篇文章，我认为这是我试图实现的目标（？）的术语，谢谢您的帮助和建议！