Writing a nested list in Python in a file

Question

I have a list like: a = [(a,[1,2,3]),(b,[4,5,6)].

How can I write the above list in a txt file like:

a 1 2 3
b 4 5 6

in a most pythonic way? Thanks

DeepSpace · Accepted Answer · 2016-09-30 16:38:19Z

1

This should do the trick:

with open('filename', 'w') as f:
    for elem in a:
        f.write('{} {}\n'.format(elem[0], ' '.join(str(i) for i in elem[1])))

answered Sep 30, 2016 at 16:38

DeepSpace

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