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python3 如何解析多层嵌套字典,具体内容打开看

# 见 代码 ,代码粘贴上不带格式,按照图片用tab键调整一下,图片是核心部分 simple_dict = { 'Large_dict' : {'middle_dict1' : {'small_dict1' : 1 , 'small_dict2' : 2}, 'middle_dict2' : {'small_dict3' : 3 , 'small_dict4' : 4, 'small_dict5':{'small_dict10' : 1 , '

d={'a': 2, 'b': 3, 'd': 4} dlist=list(d.keys()) 用字典的keys方法获得所有键的名字,python3需要转换为list,python2直接为list

import jsonresult = json.loads(s) # s 就是你的字符串for i in result: pirnt("Id:%(Id)s RepoTags:%(RepoTags)s" % i)

l=[{'status':1,'com':'a'},{'status':2 ,'com':'c' },{'status':1 ,'com':'b' },{'status':1 ,'com':'a' }]l.sort(key=lambda x:(-x['status'],x['com'])) #print l

那就嵌套操作呗 先取键2的值,是一个字典;再对该字典做pop操作.a = {1:{1:'a',2:'b',3:'c'}, 2:{4:'d',5:'e',6:'f'}} a[2].pop(4) print a[2] a[2][5] = 'W' print a[2]

..import cPickle as pdict = p.load(file("1.txt",'r')print dict['a1'] Pickle/cPickle (cPickle 是 Pickle的C语言实现) 是Python实现对象持久化的模块, 常用方法:dump / load 分别实现把对象保存到文件中/从文件中读出保存的对象dumps / loads 分别实现把对象保存到字符串变量中/从字符串变量中读出保存的对象

city_menu={"BJ":{"dongcheng":{"size":41.84,"people":91.9,"code":100010},"xicheng":{"size":50.70,"people":124.3,"code":100032},"chaoyang":{"size":470.8,"people":308.3,"code":100020}},"GZ":{"yuexiu":

>>> for k, v in index.items(): print k for first, second in v: print '\t', first, second在意 6 40 9 5每次 20 99 30 11 31 69 31 80合作 0 5>>>

Python编程将多个字典文件合并成一个字典文件,代码如下://例子:合并a.txt和b.txt两个字典文件def readf(filename): lines = file(filename).readlines() dic = {} for i in lines: i_ = i.split() dic[i_[0]] = int(i_[1]) return dicdica = readf('a.txt')dicb = readf('b.

求教关于python从列表中嵌套的字典中获取给定值?求教关于python从列表中嵌套的字典中获取给定值,并求和.?

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