Welcome to Part 8 of the Python Basics for GIS Programming series on GIS Gallery.
In this tutorial, you’ll learn how to work with sets in Python and understand why they are extremely useful in GIS scripting and data processing.
✅ In this video, you’ll learn:
What a set is and how it differs from lists & tuples
Why sets store only unique values
Common set methods:
add()
remove()
discard()
union()
intersection()
difference()
Practical GIS-style examples like removing duplicate attribute values or comparing datasets
These concepts are widely used when working with ArcPy, PyQGIS, and geospatial data cleaning tasks.
