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🐍 15 Python Built-in Functions Every Developer Should Know

You don't always need another library.
Python already ships with powerful built-in functions that can make your code cleaner, shorter, and faster.

1. enumerate() - Loop through items while automatically keeping track of their index.

2. zip() - Combine multiple lists together element by element.

3. map() - Apply the same function to every item in an
iterable.

4. filter() - Keep only the elements that satisfy a condition.

5. sorted() - Return a new sorted list without changing the original.

6. any() - Returns True if at least one item is truthy.

7. all() - Returns True only if every item is truthy.

8. sum() - Quickly calculate the total of numeric values.

9. min() / max() - Find the smallest or largest value instantly.

10. len() - Count the number of items in any iterable.

11. set() - Remove duplicate values while creating a collection of unique items.

12. isinstance() - Check whether an object belongs to a specific type.
13. range() - Generate sequences of numbers efficiently.

14. reversed() - Iterate over data in reverse order without modifying it.

15. help() - Open the built-in documentation for almost any Python object.

Learning these built-ins will make your code look much more "Pythonic" and save you from writing unnecessary loops.
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