How to split python3 List?

Question

I have this list:

[('5.333333333333333', 'n04'), ('5.0', 'n01'), ('3.9936507936507932', 'n03'), ('2.4206349206349205', 'n05'), ('1.9629629629629628', 'n02')]

and I like to have the list like this:

[n04, n01, n03, n02, n04]

how to do it? I have spend too many houres on this problem. Help please!

Grzegorz Skibinski · Answer 1 · 2020-02-27T21:22:27.123

0

Try:

x,y=zip(*[('5.333333333333333', 'n04'), ('5.0', 'n01'), ('3.9936507936507932', 'n03'), ('2.4206349206349205', 'n05'), ('1.9629629629629628', 'n02')])
y=list(y)
print(y)

Outputs:

['n04', 'n01', 'n03', 'n05', 'n02']

edited Feb 27 '20 at 21:22

answered Feb 27 '20 at 21:06

Grzegorz Skibinski

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y here is a tuple not a list so may have issues if the OP then wanted to later modify this. – Chris Doyle Feb 27 '20 at 21:09
Thank you it work,s fine, Thank you Grzegorz Skibinski. – amb_ols Feb 27 '20 at 21:10
No worries - happy to help :) - please mark it as an answer, if it addresses your question. – Grzegorz Skibinski Feb 27 '20 at 21:23

score 0 · Answer 2 · answered Feb 27 '20 at 21:08

You can use a list comprension to iterate over the list and pick out the values you are interested in and put them in a new list

my_list = [('5.333333333333333', 'n04'), ('5.0', 'n01'), ('3.9936507936507932', 'n03'), ('2.4206349206349205', 'n05'), ('1.9629629629629628', 'n02')]
my_new = [item[1] for item in my_list]
print(my_new)

OUTPUT

['n04', 'n01', 'n03', 'n05', 'n02']

How to split python3 List?

2 Answers2