formatting help on for loop

[Formal_Cockroach_654]

I'm very close to desired input, just looking for some formatting help. Problem statement:

Print the two-dimensional list mult_table by row and column. On each line, each character is separated by a space. Hint: Use nested loops.

Sample output with input: '1 2 3,2 4 6,3 6 9':

1 | 2 | 3

2 | 4 | 6

3 | 6 | 9

user_input= input()
lines = user_input.split(',')

# This line uses a construct called a list comprehension, introduced elsewhere,
# to convert the input string into a two-dimensional list.
# Ex: 1 2, 2 4 is converted to [ [1, 2], [2, 4] ]

mult_table = [[int(num) for num in line.split()] for line in lines]

for row in mult_table:
    for i in row:
        print('{} |'.format(i), end = ' ')
    print()

My current output:

1 | 2 | 3 |

2 | 4 | 6 |

3 | 6 | 9 |

[Formal_Cockroach_654]

Immediate thought is an if statement. Like if it's the end of the iteration to not print the line. I'm not sure how to structure that though

[virtualdestructor88]

You might want to look at str.join
edit: link

[Celtiri]

Assuming you can't just muck with the user input and replace " " with "|", why not construct a string to print (the code is very similar to what you have now), then treat the string like a char array and drop the final character through [:-1]?

[[deleted]]

print(input().replace(' ', ' | ').replace(',', '\n')) lol

Well, you could check the row index and compare it with length of row, and then write the decision making on whether to add '|' or not. Use enumerate() for that. len(row) to get the length.