13 Examples: Print Patterns with Loops in Python (Video in Khmer)

Hello friend! 👋 A loop can print a pattern many time. We use one loop for rows and another loop for items in each row.

In this post, I show you easy star patterns with Python loops. 🐍

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🎥 Video: Square Pattern in Python (Khmer)

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⭐ Square Pattern

Print 4 rows. Each row has 4 stars.

for row in range(4):
    for col in range(4):
        print("*", end=" ")
    print()

Output:

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

The inside loop print stars. The last print() move to a new line.

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🔺 Left Triangle Pattern

Each row has one more star than the row before.

for row in range(1, 5):
    for col in range(row):
        print("*", end=" ")
    print()

Output:

*
* *
* * *
* * * *

🎥 Video: Print Left Triangle Star Pattern Using Loop (Khmer)

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🔻 Down Left Triangle Pattern

Each row has one less star.

for row in range(4, 0, -1):
    for col in range(row):
        print("*", end=" ")
    print()

Output:

* * * *
* * *
* *
*

🎥 Video: Print Down Left Triangle Star Pattern Using Loop (Khmer)

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🔢 Number Pattern

Print the row number as the pattern.

for row in range(1, 5):
    for col in range(row):
        print(row, end=" ")
    print()

Output:

1
2 2
3 3 3
4 4 4 4

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💡 Tips

• The outside loop make each row.
• The inside loop print items in a row.
• Use print("*", end=" ") to keep items on one line.
• Use print() to start a new line after each row.
• Change range(4) to make more or less rows.
• Check your spaces and indentation. Code inside a loop need indentation.

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❓ Any Question?

Tell us in comment below! 👇

#Python #Loop #Pattern #ForLoop #LearnPython #Beginner

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📚 Related Post

• 🔁 How to Use For Loop in Python
• 🔄 While Loop with Break and Continue in Python