Change Sub lists into one string-CodePudding

I have the following

[1, 3, 14, 26, 59, 535] [932, 462, 97, 38, 8] [3, 3, 64, 83] [288, 279, 50] [4, 19] [716] [9, 939, 37510]

that I wish to change into

1 3 14 26 59 535 932 462 97 38 8 3 3 64 83 288 279 50 4 19 716 9 939 37510

is there any quick fix?

I have already tried joining (' '.join(str(e) for e in result))

CodePudding user response：

It is possible to do this with a plain python comprehension

result = [[1, 3, 14, 26, 59, 535], [932, 462, 97, 38, 8], [3, 3, 64, 83], [288, 279, 50], [4, 19], [716], [9, 939, 37510]]

' '.join(str(n) for sublist in result for n in sublist)

Which will give you the string:

'1 3 14 26 59 535 932 462 97 38 8 3 3 64 83 288 279 50 4 19 716 9 939 37510'

You were almost there with your code, it just needed one more clause in the comprehension to unwind the inner lists.

CodePudding user response：

You can try the itertools module:

result = [[1, 3, 14, 26, 59, 535],[932, 462, 97, 38, 8], [3, 3, 64, 83], [288, 279, 50], [4, 19], [716], [9, 939, 37510]]

from itertools import *

>print(list(chain.from_iterable(result))  # this give a flat list

# if you do want a string:
> ' '.join(str(e) for e in list(chain.from_iterable(result)))
'1 3 14 26 59 535 932 462 97 38 8 3 3 64 83 288 279 50 4 19 716 9 939 37510'