Convert python list of lists into dictionary format

Question

I have the following python list of lists:

[[14.76, u'2017-10-11T06:00:00Z'], [14.75, u'2017-10-11T07:00:00Z'], [14.21, u'2017-10-11T08:00:00Z']]

And I need to get it into a dictionary:

{'2017-10-11T06:00:00Z' : 14.76, '2017-10-11T07:00:00Z':14.75, '2017-10-11T08:00:00Z': 14.21}

so, you forgot to *ask a question*. (A question is a sentence that rightfully ends in "?") What is it? Have you read the official python documentation on the dictionary type? — Marcus Müller, Oct 15 '17 at 14:54

score 2 · Answer 1 · answered Oct 15 '17 at 14:55

2

d = dict()
for v, k in l:
    d[k] = v

l - initial list

answered Oct 15 '17 at 14:55

ingvar

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score 2 · Accepted Answer · answered Oct 15 '17 at 14:59

That's pretty simple. The dict constructor already accepts an iterable of two-element-iterables. The only extra difficulty here is that your keys and values are in reverse order.

>>> mylist = [[14.76, u'2017-10-11T06:00:00Z'], [14.75, u'2017-10-11T07:00:00Z'], [14.21, u'2017-10-11T08:00:00Z']]
>>> dict(map(reversed, mylist))
{u'2017-10-11T07:00:00Z': 14.75, u'2017-10-11T06:00:00Z': 14.76, u'2017-10-11T08:00:00Z': 14.21}*

Convert python list of lists into dictionary format

2 Answers2