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zip_longest() in Python Explained | Handle Uneven Lists Like a Pro!

Ever used Python’s zip() function and wondered why some list elements just vanish when the lengths don’t match?
In this beginner-friendly tutorial, we’ll introduce you to zip_longest() from Python’s itertools module — a powerful solution for combining iterables of unequal lengths without losing any data.

In This Video, You’ll Learn:
What the zip() function does and where it falls short
The problem with zipping lists of different lengths
How zip_longest() solves this issue
How to use the fillvalue argument to customize the output
When to use zip() vs. zip_longest()

This is the perfect tutorial for:
Python beginners looking to improve their understanding of iterables
Anyone who’s been frustrated by zip() cutting off elements
Developers working with real-world data where lengths may vary

Code Examples Covered:
Pairing two equal-length lists with zip()
Handling uneven lists with zip_longest()
Setting a custom default fillvalue (like None, "null", etc.)

Got questions about zip_longest() or Python iterables? Drop them in the comments — I’d love to help!

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