python在列表列表中加入字符串

Question

I have a list of lists of individual litters, however II would like a list of lists of a string.

What I have:

[
  ['a', 'b', 'c', 'd', 'e'],
  ['b', 'c', 'd', 'e', 'a'],
  ['c', 'd', 'e', 'a', 'b'],
  ['d', 'e', 'a', 'b', 'c'],
  ['e', 'a', 'b', 'c', 'd']
]

What I need:

[
  ['a b c d e'],
  ['b c d e a'],
  ['c d e a b'],
  ['d e a b c'],
  ['e a b c d']
]

Answer 1

I guess below will work as you wish.

list = [
  ['a', 'b', 'c', 'd', 'e'],
  ['b', 'c', 'd', 'e', 'a'],
  ['c', 'd', 'e', 'a', 'b'],
  ['d', 'e', 'a', 'b', 'c'],
  ['e', 'a', 'b', 'c', 'd']
]

newList = [[' '.join(elem)] for elem in list]
print(newList)

Answer 2

列表理解：

result = [[' '.join(inner)] for inner in outer_list]

Answer 3

You can also do it with this

array = [['a', 'b', 'c', 'd', 'e'], ['f', 'g', 'h', 'i', 'j']] 

string = [' '.join(i).split(',') for i in array] 
print(string)

Answer 4

你也可以用map ，

list(map(lambda x:[' '.join(x)], lst))