How to reverse a sublist in python

Question

Given the following list:

a = ['aux iyr','bac oxr','lmn xpn']

c = []
for i in a:
    x = i.split(" ")
    b= x[1][::-1] --- Got stuck after this line

Can anyone help me how to join it to the actual list and bring the expected output

output = ['aux ryi','bac rxo','lmn npx']

Could there be more than two tokens per string and if so, what would happen after the second? — user2390182
– user2390182, Commented Dec 22, 2020 at 14:39

Celius Stingher · Accepted Answer · 2020-12-22 14:30:48Z

2

I believe you need two lines of codes, first splitting the values:

b = [x.split() for x in a]

Which returns:

[['aux', 'iyr'], ['bac', 'oxr'], ['lmn', 'xpn']]

And then reverting the order:

output = [x[0] +' '+ x[1][::-1] for x in b]

Which returns:

['aux ryi', 'bac rxo', 'lmn npx']

answered Dec 22, 2020 at 14:30

Celius Stingher

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Comments

user2390182 · Accepted Answer · 2020-12-22 14:37:33Z

1

You can use the following simple comprehension:

[" ".join((x, y[::-1])) for x, y in map(str.split, a)]
# ['aux ryi', 'bac rxo', 'lmn npx']

answered Dec 22, 2020 at 14:37

user2390182

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