pattern_mj.py

  # Function to demonstrate printing pattern triangle 
def triangle(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("\r") 
  

n = int(input("Enter the no of rows"))
triangle(n)