If you're a visual learner, pattern problems in Python are the perfect playground.
From simple triangles to pyramids and diamonds — every pattern teaches you how loops and logic work together. Ready to visualize code like never before?

Inverted Pyramid Using Nested Loop in Python.

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Before diving in, check out the previous patterns:
Reverse Right-Angled Triangle Pattern

Pyramid Using Nested Loop in Python
Once you understand both the pyramid and the reverse right-angled triangle, the logic behind the inverted pyramid becomes intuitive.

Code

 row=5 for i in range(row,0,-1): for j in range(row-i): print(" ",end=" ") for k in range(2*i-1): print("*",end=" ") print() 

Explanation:

• range(row, 0, -1) makes the rows decrease from 5 to 1, it will inverse the Pyramid.
• row - i controls the leading spaces to shift the stars rightward.
• 2*i - 1 ensures that each row has the correct number of stars to form a centered triangle.

Diamond Pyramid Pattern.

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Concept:

• First, you build the pyramid (top half).
• Then, you mirror it by adding the inverted pyramid (bottom half).
• Both parts share a common middle (the row with 9 stars).

Code

 row=5 for i in range(1,row+1): # Upper Pyramid for j in range(row-i): print(" ",end=" ") for k in range(2*i-1): print("*",end=" ") print() for i in range(row,0,-1): # Inverted Pyramid for j in range(row-i): print(" ",end=" ") for k in range(2*i-1): print("*",end=" ") print() 

Explanation

• range(1, row+1) builds the upper pyramid.
• range(row, 0, -1) builds the inverted lower half.
• Since both pyramids use the same logic (2*i - 1 stars and shifting spaces), the transition is seamless.

Explained the Inverted Right Angle Triangle Pattern
Explained the Pyramid Pattern