Python's len() Function (Summary)

This course covered how len() works and how to apply it to different data types. You learned how to:

• Find the length of built-in data types using len()
• Use len() with third-party data types
• Provide support for len() with user-defined classes

For more information on concepts covered in this course, you can check out:

• NumPy Tutorial: Your First Steps Into Data Science in Python
• Using Pandas and Python to Explore Your Dataset
• The Pandas DataFrame: Make Working With Data Delightful
• Python’s len() documentation