Python – Loop Dictionaries
1. What Does “Loop Dictionaries” Mean?
Looping a dictionary means going through its data one by one.
A dictionary has:
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Keys
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Values
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Key–Value pairs
We can loop through all of them.
2. Loop Through Keys (Default Way)
When you loop directly on a dictionary, you get keys.
Example
3. Loop Through Values
Use .values() to get all values.
Example
4. Loop Through Key and Value Together
Use .items() to get both key and value.
Example
5. Loop with Condition
Example
6. Loop Using Index (Convert to List)
Dictionaries do not use index numbers,
but we can convert keys to list.
Example
7. Loop Nested Dictionary
Example
8. Common Beginner Mistakes
❌ Forgetting .items()
❌ Error.
✔ Correct:
❌ Changing Dictionary While Looping
✔ Correct:
9. Simple Practice Examples
Example 1: Print All Keys
Example 2: Print All Values
Example 3: Print Key and Value
10. Summary (Loop Dictionaries)
✔ Default loop gives keys
✔ Use .values() for values
✔ Use .items() for both
✔ Nested loops work for nested dict
✔ Be careful while modifying
📘 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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Dictionary Methods
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Dictionary Exercises
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Mini Python Projects
Just tell me 😊
