Python Program to print pattern of Letter D

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 ‘D’. In the previous tutorials, I have shown you the pattern for the letter ‘C’, Letter A, and Letter B. Here it’s now time for Pattern D.

Master the basics of data analysis in Python. Expand your skillset by learning scientific computing with numpy.

Take the course on Introduction to Python on DataCamp here https://bit.ly/datacamp-intro-to-python

Ad:

July Promo - Limited Time Sale

Limited time sale - 50% OFF Learn in-demand data and AI skills on the 17th of July

Program on Github

You can also watch the video on YouTube here.

Task:

Python program to print the pattern of letter ‘D’

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 ‘D’
  • following are 3 conditions for printing *’s
    We have 2 loops, outer loop() for rows and inner loop for columns.
    Ad:
    

    July Promo - Limited Time Sale

    

    Limited time sale - 50% OFF Learn in-demand data and AI skills on the 17th of July

    

    # Outer for loop
        for row in range(n): 
            # Inner for loop 
            for column in range(n - 2):

    • Print first and last row
      ((row == 0 or row == n-1) and (0 < column < n-3))
    • Print first column
      column == 0
    • Print last column
      column == n - 3 and (row != 0 and row != n - 1)
  • print   in remaining all cases.

Program on Github

Program:

__author__ = 'Avinash'


# Python3 program to print alphabet pattern D
def print_pattern(n):
  # Outer for loop for number of rows
  for row in range(n):
    # Inner for loop columns
    for column in range(n - 2):
      # prints first and last row
      if (
        ((row == 0 or row == n-1) and (0 < column < n-3)) or
        # prints first column
        column == 0 or
        # prints last column
        column == n - 3 and (row != 0 and row != n - 1)
      ):
        print("*", end=" ")
      else:
        print("  ", end="")
    print()

# Size of the letter
num = int(input("Enter the size \t"))

if num < 8:
  print("Enter a number atleast 8")
else:
  print_pattern(num)

Output:

Print Pattern D – Code Visualization

Program on Github

Feel free to look at other letters in this pattern series here https://www.youtube.com/playlist?list=PLrKr3rQwMgsiLQ__JeCz_Vvr5pbk6pILT

https://www.youtube.com/playlist?list=PLrKr3rQwMgsiLQ__JeCz_Vvr5pbk6pILT”]