Merge List in Python next to the same index-CodePudding

I have two list, i wanted to merge both the list in next to the same index with the delimiter.

list1 = ['1', '2', '3', '4']
list2 = ['A', 'B', 'C', 'D']

Expected result,

['1 - A', '2 - B', '3 - C', '4 - D']

I can merge both the lists using Concatenate, append or extend methods. But not sure to concatenate with the delimiter of every equivalent record.

CodePudding user response：

Try this using zip() and list comprehension:

list1 = ['1', '2', '3', '4']
list2 = ['A', 'B', 'C', 'D']


result = [f'{i} - {j}' for i,j in zip(list1, list2)]

the result will be:

Out[2]: ['1 - A', '2 - B', '3 - C', '4 - D']

CodePudding user response：

Without using zip():

[n ' - ' list2[i] for i, n in enumerate(list1)]

[list1[i] ' - ' list2[i] for i in range(len(list1))]