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Learn How To Make Python Pattern Programs With Examples

Last updated on Aug 14,2023 145.9K Views

45 / 62 Blog from Python Fundamentals

Python programming language is quite easy to learn. The implementation of various libraries with the ease of syntax makes it stand out, one of the many reasons why it has become the most popular programming language in this decade. While the learning part is easy, the interviewers often seek your approach in building the logic for pattern programs. As tricky as it may sound, with python it is a piece of cake. In this article, we will learn about various pattern programs in python. The following topics are covered in this blog:

The pattern programs incorporate a lot of nested loops. So if you are not familiar with loops in python, make sure to check out the detailed tutorial on loops in python.

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Star Pattern Programs

Following are a few star pattern programs in python.

Pyramid Pattern Program

def pattern(n):
      k = 2 * n - 2
      for i in range(0,n):
           for j in range(0,k):
               print(end=" ")
           k = k - 1
           for j in range(0, i+1):
                print("*", end=" ")
           print("&#92r")

pattern(5)

Output: pyramid - python pattern programs - edureka

 

Reverse Pyramid Pattern Program

def pattern(n):
      k = 2*n -2
      for i in range(n,-1,-1):
           for j in range(k,0,-1):
                print(end=" ")
           k = k +1
           for j in range(0, i+1):
                print("*", end=" ")
           print("&#92r")

pattern(5)

Output:reverse pyramid - python pattern programs - edureka

 

Right Start Pattern Program

def pattern(n):
      for i in range(0, n):
           for j in range(0, i + 1):
                print("* ", end="")
           print("&#92r")
      for i in range(n, 0 , -1):
          for j in range(0, i + 1):
               print("* ", end="")
          print("&#92r")

pattern(5)

Output:start pattern - python pattern programs - edureka

 

Left Start Pattern Program

def pattern(n):
    k = 2 * n - 2
    for i in range(0, n-1):
        for j in range(0, k):
            print(end=" ")
        k = k - 2
        for j in range(0, i + 1):
            print("* ", end="")
        print("&#92r")
    k = -1
    for i in range(n-1,-1,-1):
        for j in range(k,-1,-1):
            print(end=" ")
        k = k + 2
        for j in range(0, i + 1):
            print("* ", end="")
        print("&#92r")


pattern(5)

Output: left start pattern - python pattern programs - edureka

 

Hourglass Pattern Program

def pattern(n):
     k = n - 2 
     for i in range(n, -1 , -1):
          for j in range(k , 0 , -1):
               print(end=" ")
          k = k + 1     
          for j in range(0, i+1):
               print("* " , end="")
          print("&#92r")
      k = 2 * n  - 2
      for i in range(0 , n+1):
           for j in range(0 , k):
               print(end="")
           k = k - 1
            for j in range(0, i + 1):
                 print("* ", end="")
            print("&#92r")

pattern(5)

Output: hourglass - python pattern programs - edureka

 

Half-Pyramid Pattern Program

def pattern(n):
     for i in range(0,n):
         for j in range(0, i+1):
              print("* " , end="")
         print("&#92r")

pattern(5)

Output: half pyramid - python pattern programs - edureka

 

Left Half-Pyramid Pattern Program

def pattern(n):
     k = 2 * n - 2
     for i in range(0, n):
          for j in range(0, k):
               print(end=" ")
          k = k - 2 
          for j in range(0, i + 1):
              print("* ", end="")
          print("&#92r")
 
pattern(5)

Output: left half pyramid - python pattern programs - edureka

 

Downward Half-Pyramid Pattern Program

def pattern(n):
      for i in range(n, -1, -1):
           for j in range(0, i + 1):
               print("* ", end="")
           print("&#92r")

pattern(5)

Output:

 

Diamond Shaped Pattern Program

def pattern(n):
     k = 2 * n - 2
     for i in range(0, n):
          for j in range(0 , k):
               print(end=" ")
          k = k - 1
          for j in range(0 , i + 1 ):
               print("* ", end="")
          print("&#92r")
     k = n - 2
     for i in range(n , -1, -1):
          for j in range(k , 0 , -1): 
               print(end=" ")
           k = k + 1
           for j in range(0 , i + 1):
                print("* ", end="")
           print("&#92r")

pattern(5)

Output:

 

Diamond Star Pattern Program

for i in range(5):
    for j in range(5):
        if i + j == 2 or i - j == 2 or i + j == 6 or j - i == 2:
            print("*", end="")
        else:
            print(end=" ")
    print()

Output:

 

Number Pattern Programs

Here are a few programs with numeric patterns in java.

Simple Numbers Program

def pattern(n):
    x = 0 
    for i in range(0 , n):
        x += 1  
        for j in range(0, i + 1):
            print(x , end=" ") 
        print("&#92r") 
pattern(5)

Output:number patter - python pattern programs - edureka

 

Pascal’s Triangle Program

def pascal(n):
    for i in range(0, n):
        for j in range(0, i + 1):
            print(function(i, j)," ", end="")
        print()

def function(n, k):
    res = 1
    if (k > n - k):
        k = n - k
    for i in range(0, k):
        res = res * (n - i)
        res = res // (i + 1)

    return res

pascal(7)

Output:pascal's traingle - python pattern programs - edureka

 

Half-Pyramid Pattern With Numbers

def pattern(n):
     for i in range(1, n):
         for j in range(1, i + 1):
             print(j, end= " ")
         print("&#92r")
pattern(5)

Output:

 

Diamond Pattern With Numbers

def pattern(n):
    k = 2 * n - 2
    x = 0
    for i in range(0, n):
        x += 1
        for j in range(0, k):
            print(end=" ")
        k = k - 1
        for j in range(0, i + 1):
            print(x, end=" ")
        print("&#92r")
    k = n - 2
    x = n + 2
    for i in range(n, -1, -1):
        x -= 1
        for j in range(k, 0, -1):
            print(end=" ")
        k = k + 1
        for j in range(0, i + 1):
            print(x, end=" ")
        print("&#92r")

pattern(5)

Output:

 

Descending Order Pattern Program

def pattern(n):
    for i in range(n, 0, -1):
        for j in range(1, i + 1):
            print(j, end=" ")

        print("&#92r")

pattern(5)

Output:

 

Binary Numbers Pattern Program

def pattern(n):
    k = 2 * n - 2
    for i in range(0, n):
        for j in range(0, k):
            print(end=" ")
        k = k - 1
        for j in range(0, i + 1):
            print('10', end="")

        print("&#92r")

pattern(5)

Output:

 

Characters Pattern Programs

Here are a few pattern programs in python with characters.

Right Alphabetical Triangle

def pattern(n):
    x = 65
    for i in range(0, n):
        ch = chr(x)
        x += 1
        for j in range(0, i + 1):
            print(ch, end=" ")
        print("&#92r")

pattern(5)

Output:character pattern- python pattern programs-edureka

 

Character Pattern Program

def pattern(n):
    k = 2 * n - 2
    x = 65
    for i in range(0, n):
        for j in range(0, k):
            print(end=" ")
        k = k - 1
        for j in range(0, i + 1):
            ch = chr(x)
            print(ch, end=" ")
            x += 1
        print("&#92r")


pattern(7)

Output:

 

K Shape Character Program

for i in range(7):
    for j in range(7):
        if j == 0 or i - j == 3 or i + j == 3:
            print("*", end="")
        else:
            print(end=" ")
    print()

Output:

 

Triangle Character Pattern Program

def pattern(n):
    k = 2 * n - 2
    x = 65
    for i in range(0, n):
        ch = chr(x)
        x += 1
        for j in range(0, k):
            print(end=" ")
        k = k - 1
        for j in range(0, i + 1):
            print(ch, end=" ")
        print("&#92r")


pattern(5)

Output:

 

Diamond Shaped Character Pattern Program

def pattern(n):
    k = 2 * n - 2
    for i in range(0, n):
        for j in range(0, k):
            print(end=" ")
        k = k - 1
        x = 65
        for j in range(0, i + 1):
            ch = chr(x)
            print(ch, end=" ")
            x += 1
        print("&#92r")
    k = n - 2
    x = 65
    for i in range(n, -1, -1):
        for j in range(k, 0, -1):
            print(end=" ")
        k = k + 1
        for j in range(0, i + 1):
            ch = chr(x)
            print(ch, end=" ")
            x += 1
        print("&#92r")


pattern(5)

Output:

 

This brings us to the end of this article where we have learned how we can implement different patterns in python using asterisk, numbers and characters with the help of loops in python. I hope you are clear with all that has been shared with you in this tutorial.

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Learn How To Make Python Pattern Programs With Examples

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