Triangle Star Pattern in Python

Triangle star pattern in Python | We will develop a program to print shapes of triangles using stars.

Python Program to Print Triangle Star Pattern

Triangle Star Pattern-1

Enter number of row: 5
*
* *
* * *
* * * *
* * * * *

# Python star pattern to print left half pyramid 

def pattern(n):
   for i in range(1, n+1):
      # print star
      print("* " * i)
 
# take input
n = int(input('Enter number of row: '))

# function call
pattern(n)

Triangle Star Pattern-2

Enter number of row: 6
* * * * * *
* * * * *
* * * *
* * *
* *
*

# Python star pattern to print downward left half triangle

def pattern(n):
   for i in range(n):
      # print star
      print("* " * (n-i))
 
# take input
n = int(input('Enter number of row: '))

# function call
pattern(n)

Triangle Star Pattern-3

Enter number of row: 6

          * 
        * * 
      * * * 
    * * * * 
  * * * * * 
* * * * * *

# Python star pattern to print right half triangle

def pattern(n):
   for i in range(1, n+1):
      # print star
      print(" " * (n-i) + "*" * i)
 
# take input
n = int(input('Enter number of row: '))

# function call
pattern(n)

Triangle Star Pattern-4

Enter number of row: 5

  * * * * 
    * * * 
      * * 
        * 

def pattern(n):
   for i in range(n-1):
      for j in range(i+1):
         print(" ",end=" ")
      for k in range(n-i-1):
         print("* ",end="")
      print()
 
# take input
n = int(input('Enter number of row: '))

# function call
pattern(n)

Triangle Star Pattern-5

Enter number of row: 6

     * 
    * * 
   * * * 
  * * * * 
 * * * * * 
* * * * * * 

# Python star pattern to print triangle

def pattern(n):
   for i in range(n):
      # print star
      print(" " * (n-i-1) + "*" * (2*i+1))
 
# take input
n = int(input('Enter number of row: '))

# function call
pattern(n)

Triangle Star Pattern-6

Enter number of row: 3

    * * * * 
     * * * 
      * * 
       *

def pattern(n):
   a = (2 * n) - 2
   for i in range(n, -1, -1):
      for j in range(a, 0, -1):
         print(end=" ")
         
      a = a + 1
      for j in range(0, i+1):
         print("* ",end="")
      print("\r")
 
# take input
n = int(input('Enter number of row: '))

# function call
pattern(n)

Triangle Star Pattern-7

Enter number of row: 6

     *   
    *   *   
   *   *   *   
  *   *   *   *   
 *   *   *   *   *   
*   *   *   *   *   *  

def pattern(n):
   a = n - 1
   for i in range(n):
      for j in range(a):
         print(end=" ")
         
      a = a - 1
      for j in range(i+1):
         print("* ",end="  ")
      print("\r")
 
# take input
n = int(input('Enter number of row: '))

# function call
pattern(n)

Triangle Star Pattern-8

Enter number of row: 4

      * 
    * * 
  * * * 
* * * * 
  * * * 
    * * 
      * 

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

   for i in range(n-1):
      for j in range(i+1):
         print(" ",end=" ")
      for j in range(n-i-1):
         print("* ",end="")
      print()
 
# take input
n = int(input('Enter number of row: '))

# function call
pattern(n)

Triangle Star Pattern-9

Enter number of row: 3
*
* *
* * *
* *
*

# Python star pattern to print right pascal triangle

def pattern(n):
   for i in range(n):
      print('* ' * (i + 1))
   for i in range(n):
      print('* ' * (n - i - 1))
 
# take input
n = int(input('Enter number of row: '))

# function call
pattern(n)

Star Triangle in Python using While Loop

Triangle Star Pattern-10

Enter number of row: 3
*
* *
* * *

def pattern(n):
   i = 1
   while i<=n:
      print("* " * i)
      i+=1 
 
# take input
n = int(input('Enter number of row: '))

# function call
pattern(n)

Triangle Star Pattern-11

Enter number of row: 3
* * *
* *
*

# Python star pattern to print downward left half triangle 

def pattern(n):
   i = n
   while i>=1:
      # printin star
      print("* " * i)
      i-=1 
 
# take input
n = int(input('Enter number of row: '))

# function call
pattern(n)

Triangle Star Pattern-12

Enter number of row: 4

   *
  **
 ***
****

# Python star pattern to print right half triangle 

def pattern(n):
   i = 1
   while i<=n:
      print(" "*(n-i) + "*" * i)
      i+=1 
 
# take input
n = int(input('Enter number of row: '))

# function call
pattern(n)

Triangle Star Pattern-13

Enter number of row: 6

******
 *****
  ****
   ***
    **
     *

def pattern(n):
   i = n
   while i>=1:
      print(" "*(n-i) + "*" * i)
      i-=1 
 
# take input
n = int(input('Enter number of row: '))

# function call
pattern(n)

Triangle Star Pattern-14

Enter number of row: 6

     * 
    * * 
   * * * 
  * * * * 
 * * * * * 
* * * * * *

def pattern(n):
   i = 1
   while i<=n:
      print(" "*(n-i) + "* " * i)
      i+=1 
 
# take input
n = int(input('Enter number of row: '))

# function call
pattern(n)

Triangle Star Pattern-15

Enter number of row: 5

* * * * * 
 * * * * 
  * * * 
   * * 
    *

def pattern(n):
   i = n
   while i>=1:
      # printin star
      print(" "*(n-i) + "* " * i)
      i-=1 
 
# take inputs
n = int(input('Enter number of row: '))

# function call
pattern(n)

Triangle Star Pattern-16

Enter number of row: 4
*
* *
* * *
* * * *
* * *
* *
*

def pattern(n):
   i = 1
   while i<n:
      print("* " * i)
      i+=1

   i = n
   while i>=1:
      print("* " * i)
      i-=1
 
# take input
n = int(input('Enter number of row: '))

# function call
pattern(n)

Triangle Star Pattern-17

Enter number of row: 4

   *
  **
 ***
****
 ***
  **
   *

def pattern(n):
   i = 1
   while i<n:
      print(" "*(n-i) + "*" * i)
      i+=1

   i = n
   while i>=1:
      print(" "*(n-i) + "*" * i)
      i-=1
 
# take inputs
n = int(input('Enter number of row: '))

# function call
pattern(n)

Triangle Star Pattern in Python

In the below programs, we will print the hollow triangle star pattern.

Triangle Star Pattern-18

Enter number of row: 6

* 
* * 
*   * 
*     * 
*       * 
* * * * * * 

def pattern(n):
   for i in range(1, n+1):
      for j in range(i):
         if j == 0 or j == i-1:
            print("*", end=" ")
         else:
            if i != n:
               # printing spaces
               print(" ", end=" ")
            else:
               # print star
               print("*", end=" ")
      print()
 
# take input
n = int(input('Enter number of row: '))

# function call
pattern(n)

Triangle Star Pattern-19

Enter number of row: 5

* * * * * 
*     * 
*   * 
* * 
* 

def pattern(n):
   for i in range(n, 0, -1):
      for j in range(i, 0, -1):
         if i == 1 or i == n or j == 1 or j == i:
            print("*", end=" ")
         else:
            # printing spaces
            print(" ", end=" ")
      print()

# take inputs
n = int(input('Enter number of row: '))

# function call
pattern(n)

Triangle Star Pattern-20

Enter number of row: 6

          * 
        *   * 
      *       * 
    *           * 
  *               * 
* * * * * * * * * * *

def pattern(n):
   for i in range(n):
      for j in range(n-i-1):
         print(" ", end=" ")
      
      for j in range(2*i+1):
         if j == 0 or j == 2*i:
            print("*", end=" ")
         else:
            if i == n-1:
               print("*", end=" ")
            else:
               print(" ", end=" ")
      print()
 
# take input
n = int(input('Enter number of row: '))

# function call
pattern(n)

Triangle Star Pattern-21

Enter number of row: 4

  * * * * * * * 
    *       * 
      *   * 
        * 

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

      for j in range(1, (n*2 - (2*i-1)) + 1):
         if i == 1 or j == 1 or j ==(n*2 -(2*i-1)):
            print("*", end=" ")
         else:
            print(" ", end=" ")
      print()

# take input
n = int(input('Enter number of row: '))

# function call
pattern(n)

Also See:- Pattern Programs in C

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