使用for循环嵌套字典

Question

我正在尝试在当前代码中的字典中添加字典，就像这样！

    i = 0
    A ={}
    x = [...]
    for i in x:
        (a,b) = func(x)#this returns two different Dictionaries as a and b 
          for key in a.keys():
            A[key] = {}
            A[key][i] = a[key]
        print('A:',A)

当我执行它时，我得到了＆＃39; A＆＃39;整个循环中打印的字典！但是，我需要在一个字典中说：＆＃34; C＆＃34; 我该怎么做？