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Question

I have the list mydicts = [] which contains

[{'Frank': {'Jack': 0, 'Kevin': 0, 'Sam': 0},
    'Sam': {'Frank': 0, 'Jack': 0, 'Kevin': 0},
    'Kevin': {'Frank': 0, 'Jack': 0, 'Sam': 0},
    'Jack': {'Frank': 0, 'Kevin': 0, 'Sam': 0} }]

I am however trying to get it in this format in order for me to perform some operations:

d = {'Frank': {'Jack': 0, 'Kevin': 0, 'Sam': 0},
'Sam': {'Frank': 0, 'Jack': 0, 'Kevin': 0},
'Kevin': {'Frank': 0, 'Jack': 0, 'Sam': 0},
'Jack': {'Frank': 0, 'Kevin': 0, 'Sam': 0} }

I tried doing this

sm_list = list(mydicts)
d = sm_list

But it did not work. How can I fix it?

Answer 1

You can just access to it by using list indices:

my_dicts = [{'Frank': {'Jack': 0, 'Kevin': 0, 'Sam': 0},
    'Sam': {'Frank': 0, 'Jack': 0, 'Kevin': 0},
    'Kevin': {'Frank': 0, 'Jack': 0, 'Sam': 0},
    'Jack': {'Frank': 0, 'Kevin': 0, 'Sam': 0} }]

d = my_dicts[0]

Notes:

• The proper name for [...] is list , not array.

• By accessing to my_dicts[0] , you are accessing to the first element. With my_dicts[1] you will access to the second element. And so on.

• When you do list(mydicts) , it doesn't have effect because my_dicts is already a list.

Answer 2

You can solve this issue simply by doing this:

d = mydicts[0]

This returns the first value from mydicts , which conveniently is exactly what you want.

Answer 3

What you want can be obtained by retrieving the first (and only) element in your array -- which is already what Python calls a list -- since it's exactly what you seek. The first element in a list/array is the one with an index of 0.

mydicts = [{'Frank': {'Jack': 0, 'Kevin': 0, 'Sam': 0},
            'Sam': {'Frank': 0, 'Jack': 0, 'Kevin': 0},
            'Kevin': {'Frank': 0, 'Jack': 0, 'Sam': 0},
            'Jack': {'Frank': 0, 'Kevin': 0, 'Sam': 0},}]

d = mydicts[0]

print "d's contents: {"
for k, v in d.iteritems():
    print '    {}: {},'.format(k, v)
print '}'

Output:

d's contents: {
    Frank: {'Sam': 0, 'Jack': 0, 'Kevin': 0},
    Sam: {'Frank': 0, 'Jack': 0, 'Kevin': 0},
    Kevin: {'Frank': 0, 'Jack': 0, 'Sam': 0},
    Jack: {'Frank': 0, 'Sam': 0, 'Kevin': 0},
}