Exploring Pythons Built-in Functions: Math-Related Built-Ins & String Data Types @realpython
Exploring Pythons Built-in Functions: Math-Related Built-Ins & String Data Types  @realpython
Uploaded July 2026 | Updated September 2026, 2 weeks ago
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This is a preview of the video course, "Exploring Python's Built-in Functions". Python’s built-in functions are predefined functions you can use anywhere in your code without any imports. They handle common tasks across math, data type creation, iterable processing, and input and output. Knowing which ones to reach for makes your code shorter and more Pythonic.

This is a portion of the complete course, which you can find here: realpython.com/courses/exploring-pythons-built-in-functions

And the original text tutorial is here: realpython.com/python-built-in-functions

The rest of the course covers:
- Covering Collection Types
- Exercise: Give a Class Two String Forms
- Looking at Iterators and Iterables
- Acting on Iterables
- Combining and Extracting Iterables
- Becoming Iterable
- Functional Programming
- Exercise: Rank Items by Rating
- Printing and Formatting
- Getting Input
- Exercise: Format a Number as Currency
- Decorating
- Managing Attributes
- Getting Class and Object Info
- Understanding Callables
- Inheriting Data and Methods
- Exercise: Build a Subclass From a Parent Class
- Scoping It Out
- Introspecting Objects
- Executing From Strings
- Miscellaneous Built-Ins
- Exercise: Check Whether a Value Is Hashable
- Exploring Python's Built-in Functions (Quiz)



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Exploring Python's Built-in Functions: Math-Related Built-Ins & String Data Types

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