3 Python For Loops
1. What is a For Loop?
A for loop is used to repeat code for each item in a sequence.
In simple words:
👉 Python takes one item at a time
👉 Runs the code for that item
👉 Stops when items are finished
2. Where Do We Use For Loop?
We use for loop with:
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Lists
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Tuples
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Sets
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Dictionaries
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Strings
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Range of numbers
3. Simple For Loop Example
Example
4. For Loop with Numbers (range())
Example
Output:
Print 1 to 5
5. For Loop with String
Example
6. For Loop with List
Example
7. For Loop with Tuple
Example
8. For Loop with Dictionary
Loop Keys
Loop Values
Loop Key & Value
9. For Loop with Condition
Example
10. Stop Loop Using break
Example
11. Skip One Step Using continue
Example
12. For Loop with Else
else runs when loop finishes normally.
Example
13. Nested For Loop (Loop Inside Loop)
Example
14. Important Rule: Indentation
Python uses spaces to understand loop body.
❌ Wrong
✔ Correct
15. Common Beginner Mistakes
❌ Forgetting Colon :
❌ Using Wrong Variable
✔ Correct:
16. Simple Practice Examples
Example 1: Print Even Numbers
Example 2: Sum of Numbers
Example 3: Count Letters
17. Summary (Python For Loop)
✔ Used to repeat code
✔ Works with sequences
✔ Cleaner than while loop
✔ Supports break & continue
✔ Very important in Python
📘 Perfect for Beginner eBook
This chapter is ideal for:
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Python beginner books
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School & college students
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Self-learners
If you want next, I can write:
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Break & Continue
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Loop Exercises
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Functions
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Mini Python Projects
Just tell me 😊
