Recursive Pascals Triangle Layout

So i've managed to get Pascals Triangle to print successfully in terms of what numbers are printed, however, i can't get the formatting correct using: n = int(input('Enter value of

Solution 1:

You want to use the str.join() function, which prints out all elements in a list separated by a string:

>>> L = printPascal(6)
>>> for row in L:
...     print ' '.join(map(str, row))
... 
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
1 5 10 10 5 1

' '.join(list) means you're printing out every element in a list separated by a space (' ').

However, every element in the list needs to be a string in order for the join function to work. Yours are integers. To fix this, I've changed all the integers to strings by doing map(str, row). This is equivalent to:

new_list = []
for item in row:
    new_list.append(str(item))

Or as a list comprehension:

[str(item) for item in row]