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Pattern Programs in Python for Printing Pyramid

Python is extremely user-friendly and enables users to become good at programming by simplifying the coding process. Users can easily access different Python libraries with modules containing program codes that can structure a framework. That’s what makes Python extremely popular among programmers. 

Python encodes programs in different formats and shapes to develop recognized patterns. These patterns comprise different code combinations to help programmers improve their skills. In this article, we will specifically learn about pattern program in python.

Table of Content:

  1. Why Are Python Patterns Useful?
  2. Types of Pyramid Pattern Program in Python
  3. Conclusion
  4. FAQs

Why are Python Patterns Useful?

The different benefits of using the pattern program in Python are as follows:

  • A pyramid pattern in Python will improve code transparency for all developers likely to use it in future. 
  • You will be able to make a code reusable and apply it to different projects with the help of pattern printing in Python.
  • You can believe in solutions provided by patterns in Python because they are well-established.
  • Python patterns can make communication more effective.
  • A pyramid pattern in Python can help develop cohesive modules with minimal coupling. 

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Pattern Programs in Python for Printing Pyramid

Types of Patterns Program in Python

You will come across various types of patterns program in Python. Keep scrolling to learn about some of them.

How to Print a Simple Pyramid Pattern Program in Python

Let’s see the explanation of Pattern Program in Python with example:

Example:

# This is the example of print simple pyramid pattern  
n = int(input("Enter the number of rows"))  
# outer loop to handle number of rows  
for i in range(0, n):  
    # inner loop to handle number of columns  
    # values is changing according to outer loop  
        for j in range(0, i + 1):  
            # printing stars  
            print("* ", end="")       
  
        # ending line after each row  
        print()  
Outcome:
* 
* * 
* * * 
* * * * 
* * * * *

Explanation:

The above code involved initializing the n variable. It helped enter the number of rows for printing the pattern in Python. The value of n was chosen as 5, and the outer loop ranged between 0 to 4. 

The outer loop influences the interaction of the inner for loop. The inner loop remains responsible for printing the number of columns. 

In the first iteration, i equals 0, and it gets increased by 1. Therefore, it becomes 0+1. So the inner loop will be iterated for the first time to print one star (*).

In the second iteration, the value of i will be 1. If it is increased by 1, it will become 1+1. Therefore, the inner loop will be iterated twice, and two stars will get printed. 

The final argument won’t jump into another line. It will continue printing the star until the loop becomes valid.

The last print statement will ensure each line after a row ends. 

How to Print a Reverse Right Angle Pyramid Program in Python

Let’s see the explanation of Pattern Program in Python with example:

Code:
# This is the example of print simple reversed right angle pyramid pattern  
rows = int(input("Enter the number of rows:"))  
k = 2 * rows - 2 # It is used for number of spaces  
for i in range(0, rows):  
    for j in range(0, k):  
        print(end=" ")  
    k = k - 2 # decrement k value after each iteration  
    for j in range(0, i + 1):  
        print("* ", end="") # printing star  
    print("")  
Outcome:
      * 
     * * 
    * * * 
   * * * * 
  * * * * *

How to Print Inverted Pyramid Patterns Program in Python

Let’s see the explanation of Pattern Program in Python with example:

Code:
rows = int(input("Enter the number of rows: 5"))  
k = 0  
# Reversed loop for downward inverted pattern  
for i in range(rows, 0, -1):  
    # Increment in k after each iteration  
    k += 1  
    for j in range(1, i + 1):  
        print(k, end=' ')  
    print() 
Outcome:
Enter the number of rows: 5
1 1 1 1 1 
2 2 2 2 
3 3 3 
4 4 
5

Explanation:

The reversed loop is useful for inverted pyramid pattern printing in Python. In this type of pattern program in Python, the number will reduce after every iteration. 

Find out: Top 10 Python Libraries You Must Know In 2023

How to Print Hourglass Pyramid Patterns Program in Python

Let’s see the explanation of Pattern Program in Python with example:

Code:
rows = int(input("Enter the number of rows: "))  
k = rows - 2  
# This is used to print the downward pyramid  
for i in range(rows, -1 , -1):  
    for j in range(k , 0 , -1):  
        print(end=" ")  
    k = k + 1  
    for j in range(0, i+1):  
        print("* " , end="")  
    print()  
  
# This is used to print the upward pyramid  
k = 2 * rows - 2  
for i in range(0 , rows+1):  
    for j in range(0 , k):  
        print(end="")  
    k = k - 1  
    for j in range(0, i + 1):  
        print("* ", end="")  
    print()  
Outcome:
Enter the number of rows: 5
   * * * * * * 
    * * * * * 
     * * * * 
      * * * 
       * * 
        * 
        * 
       * * 
      * * * 
     * * * * 
   * * * * * 
  * * * * * *

Explanation:

Hourglass pattern printing in Python is primarily based on logic and proper usage of loops. 

Understand: Tuple in Python: Function with Example

How to Print Number Pyramid Patterns Program in Python

You can use different pattern programs in Python for printing numbers. Some popular ones are as follows:

Pattern 1: Number Pattern

Code:
rows = int(input("Enter the number of rows: "))  
# Outer loop will print number of rows  
for i in range(rows+1):  
    # Inner loop will print the value of i after each iteration  
    for j in range(i):  
        print(i, end=" ") # print number  
    # line after each row to display pattern correctly  
    print(" ") 
Outcome:
Enter the number of rows: 5
1  
2 2  
3 3 3  
4 4 4 4  
5 5 5 5 5

Explanation: 

The above code revolved around printing numbers according to row value. The first row contains only one number. The second row contains two numbers, the third row contains three numbers, and so on. 

Pattern 2: Print 1 to 10

Code:
current_Number = 1  
stop = 2  
rows = 3 # Number of rows to print numbers  
  
for i in range(rows):  
    for j in range(1, stop):  
        print(current_Number, end=' ')  
        current_Number += 1  
    print("")  
    stop += 2 
Outcome:
1 
2 3 4 
5 6 7 8 9

Pattern 3: Print Odd Numbers

Code:
rows = int(input("Enter the number of rows: "))  
i = 1  
# outer file loop to print number of rows  
while i <= rows:  
    j = 1  
    # Check the column after each iteration  
    while j <= i:  
        # print odd values  
        print((i * 2 - 1), end=" ")  
        j = j + 1  
    i = i + 1  
    print()  
Outcome:
Enter the number of rows: 5
1 
3 3 
5 5 5 
7 7 7 7 
9 9 9 9 9

Learn: What Is a List in Python: Functions with Examples
Pattern Programs in Python for Printing Pyramid

Pattern Printing in Python for Letters and Alphabets

Every letter comes with a different ASCII value. You will have to define every character to get it printed on the screen. Find out how to print a right-angled pattern with characters:

Code:
print("The character pattern ")  
asciiValue = 65 #ASCII value of A  
for i in range(0, 5):  
    for j in range(0, i + 1):  
        # It will convert the ASCII value to the character  
        alphabate = chr(asciiValue)  
        print(alphabate, end=' ')  
        asciiValue += 1  
    print()  
Outcome:
The character pattern 
A 
B C 
D E F 
G H I J 
K L M N O

Explanation:

The ASCII value of A is assigned an integer value of 65. Next, a loop was defined to print five rows. The char() function was used to convert the ASCII value into the character. It helped print the characters while increasing the asciiValue after every iteration. 

Conclusion

Recruiters might ask you about a pattern program in Python to test your knowledge of the programming language. Therefore, it’s crucial for you to possess adequate knowledge about the different patterns program in Python. You can begin with simple pattern printing in Python before moving ahead to the difficult ones.

FAQ's

You can create different types of patterns programs in Python, including half pyramids, full pyramids, inverted pyramids, and inverted full pyramids.
You can use an arithmetic operator and print() or use the input () function. You can also use the For loop and range() or a Pandas DataFrame.
A function in Python is a block of reusable and organized code for performing one action multiple times. Functions make it easier to maintain the application code. Python users can create different functions or use the built-in ones.
A design pattern program in Python can be used for different purposes. You will come across three types of design patterns in Python, and each of them serves a different function. The three types of design patterns in Python are creational, structural, and behavioral patterns.
A literal string in Python represents a sequence of characters from the source. They are useful for representing the sequence. You will come across a specific way of writing the literal strings in Python.

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