Line Dictionary to Single

 

This question already has an answer here:

  • How to merge two dictionaries in a single expression? 48 answers

    • 假设你要求多个字典（不是多行字典）到一个字典。 

    a = {1: 1, 2:2}
b = {2:2, 3:3}
c = {2:3}
{**a, **b, **c}

Out: {1: 1, 2: 3, 3: 3}

    Assuming that your initial data is actually a list of dictionaries and your keys are unique accross all your dictionaries I would use something like - 

    example = [{'a':1}, {'b':2}, {'c':3}]

objOut = {}
for d in example:
    for k,v in d.iteritems():
        objOut[k] = v

    OR 

    objIn = [{'a':1}, {'b':2}, {'c':3}]

objOut = {}
for d in objIn:
    objOut.update(d)


print objOut

    Given 

    dicts = [{'a':1}, {'b':2}, {'c':3, 'd':4}]

    Do 

    {k:v for d in dicts for (k, v) in d.items()}

    or 

    from itertools import chain
dict(chain(*map(dict.items, dicts)))

    resulting in 

    {'a': 1, 'b': 2, 'c': 3, 'd': 4}
    链接地址: http://www.djcxy.com/p/17574.html

    上一篇: 发布未选中的复选框

    下一篇: 线字典到单