Python Program to print pattern of letter N

Hello everyone! Welcome back to programminginpython.com. I am continuing with this pattern programming series, here I will tell you how to print the pattern of the letter N. In the previous tutorials, I have shown you the patterns of letters A to M. Here it’s now time for Pattern N. You can check the complete series on letter patterns here.

Program on GitHub

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Print Pattern N – Code Visualization

Task:

Python program to print the pattern of letter N

Approach:

• Read an input integer for asking the size of the letter using input()
• Check if the entered number is greater than 8,
  • if yes, call the function print_pattern()
  • else, show a message to enter a number that is greater or equal to 8
• print_pattern()
  • here we only do two things, print star(*) and print space( ), just writing conditions so the pattern of *‘s and ‘s will display the pattern N
  • following are 2 conditions for printing *’s
    We have 2 loops, an outer loop() for rows, and an inner loop for columns.

    # Outer for loop
        for row in range(n): 
            # Inner for loop 
            for column in range(n):

    Print first column
    column == 0


    Print last column
    column == n - 1


    Print slanting line
    row == column


  • print in remaining all cases.

Program on GitHub

Program:

__author__ = 'Avinash'

# Python3 program to print alphabet pattern N

# *             *
# * *           *
# *   *         *
# *     *       *
# *       *     *
# *         *   *
# *           * *
# *             *


def print_pattern(n):
    for row in range(n):
        for column in range(n):
            # first column
            if ((column == 0 or
                 # last column
                 column == n-1) or
                 # slanting line
                 row == column
               ):
                print("*", end=" ")
            else:
                print(" ", end=" ")
        print()

size = int(input("Enter the size: \t"))

if size < 8:
    print("Enter a value minumin of 8")
else:
    print_pattern(size)

Output:

Program on GitHub