Python 3.6-以可读的树结构打印字典数据

Question

如何使用 Python 以更易读的树格式打印下面的字典数据，如下所示。这是我第一次来这里，请原谅我的无知。

TempDict =
{'outlook': {'sunny': {'humidity': {'high': 'no', 'normal': 'yes'}}, 'rainy': {'wind': {'strong': 'no', 'weak': 'yes'}}, 'overcast': 'yes'}}

所需的输出格式 -

outlook=sunny

    humidity=high:no
    humidity=normal:yes




outlook=rainy

    wind=strong:no
    wind=weak:yes        

像这样打印的类：

class DecisionNode:
    def __init__(self, attribute):
        self.attribute = attribute
        self.children = {}

    # Visualizes the tree
    def display(self, level = 0):
        if self.children == {}:
            # reached leaf level
            print(": ", self.attribute, end="")
        else:
            for value in self.children.keys():
                prefix = "\n" + " " * level * 4
                print(prefix, self.attribute, "=", value, end="")
                self.children[value].display(level + 1)

Answer 1

您需要递归地运行您的数据！

temp = {'outlook': {'sunny': {'humidity': {'high': [ 'no' ,1 ] , 'normal': 'yes'}}, 'rainy': {'wind': {'strong': 'no', 'weak': 'yes'}}, 'overcast': 'yes'}}

def formatData(t,s):
    if not isinstance(t,dict) and not isinstance(t,list):
        print "\t"*s+str(t)
    else:
        for key in t:
            print "\t"*s+str(key)
            if not isinstance(t,list):
                formatData(t[key],s+1)

formatData(temp,0)

输出：

outlook
        rainy
                wind
                        strong
                                no
                        weak
                                yes
        overcast
                yes
        sunny
                humidity
                        high
                                no
                                1
                        normal
                                yes

您还可以使用pprint

import pprint
pprint.pprint(myvar)

示例输出：

{'outlook': {'overcast': 'yes',
             'rainy': {'wind': {'strong': 'no', 'weak': 'yes'}},
             'sunny': {'humidity': {'high': ['no', 1], 'normal': 'yes'}}}}