Concatenate removes comma from list, why?-CodePudding

After concatenating of 2 lists the commas are gone. But for columnar I need the commas. How to get them back ?

data list: [['bc1qxerefpfv3eaje77pmz44uuhkrtuss96pr8l86h', '0.01001904'], ['bc1qqd3v30aq6fsjnyl236rft7607rcdj4sjj3f4ty', '0.00476636']]
receiver list: [['36P29dTs6XnAiVxiMxZqmKBm1bFpsHfueR', '0.00167392'],['3D38TeCNgMdJBScz5CXnKkuKSUZpU7Y4mH',         '0.01011148']] 

import numpy as np
result=np.concatenate((data,receiver),axis=1)

result:[['bc1qxerefpfv3eaje77pmz44uuhkrtuss96pr8l86h' '0.01001904'
  '36P29dTs6XnAiVxiMxZqmKBm1bFpsHfueR' '0.00167392']
 ['bc1qqd3v30aq6fsjnyl236rft7607rcdj4sjj3f4ty' '0.00476636'
  '3D38TeCNgMdJBScz5CXnKkuKSUZpU7Y4mH' '0.01011148']]

2 Lists:

[[1,2],[3,4],[5,6],[7,8],[9,5]]
[[23,56][78,89]]

output should be:

1 2 23 56
3 4 78 89
5 6
7 8
9 5

result = list(map(list.__add__, list1, list2))
doesn't work

CodePudding user response：

Based on your last edit, it seems that you could use itertools.zip_longest. Use a triple loop and set your brackets right to get the desired structure:

from itertools import zip_longest

data = [[1,2],[3,4],[5,6],[7,8],[9,5]]
receiver = [[23,56],[78,89]]

result = [[x for l in tup for x in l] for tup in zip_longest(data, receiver, fillvalue=[])]

Output:

[[1, 2, 23, 56], [3, 4, 78, 89], [5, 6], [7, 8], [9, 5]]