How do i print a pattern n in python?

November 30, 2020 November 30, 2020

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.

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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 which 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:

__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: