Question

How do you print a list down and then across in Python?

l = [v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14]

v1 v4 v7 v10 v13  
v2 v5 v8 v11 v14  
v3 v6 v9 v12  

The length of the list can vary but for now I would like to print in a 5 column format.

Answer 1

Something like this should work:

>>> def print_list_matrix(lst, row_num):
...     for i in range(row_num):
...         print ' '.join(lst[i::row_num])
... 
>>> print_list_matrix(lst, 3)
v1 v4 v7 v10 v13
v2 v5 v8 v11 v14
v3 v6 v9 v12
>>> print_list_matrix(lst, 4)
v1 v5 v9 v13
v2 v6 v10 v14
v3 v7 v11
v4 v8 v12