Data Structures in Python : Lists and Tuples
Today's post is inspired by a combination of my recent trip to Miami and the Google Certification that I am currently pursuing.
As I marveled at the towering buildings in the city, I couldn’t help but think about the foundations that hold them up.
This reflection reminded me of my own work in data analytics, where seemingly simple structures like lists and tuples form the bedrock of larger, more intricate solutions.
One might think that revisiting such fundamental concepts as a data professional isn’t worthwhile—it's "something you already know."
However, as I worked through exercises on lists and tuples, I was struck by how many nuances I had overlooked during my initial learning.
For example, revisiting the differences in mutability between lists and tuples revealed new ways to optimize my code.
With these insights in mind, let's dive into some of the key similarities and differences between lists and tuples in the table below:
Aspect | List | Tuple | Similarity |
---|---|---|---|
Mutability | Mutable (can be modified after creation) | Immutable (cannot be modified after creation) | Both can store collections of elements. |
Syntax | Defined using square brackets [] | Defined using parentheses () | Both can contain heterogeneous data types (e.g., integers, strings). |
Performance | Slower due to mutability | Faster due to immutability | Both can be indexed and sliced. |
Memory Usage | Consumes more memory | Consumes less memory | Both support iteration using loops. |
Use Cases | Suitable for dynamic data that changes often | Suitable for static data that won’t change | Both can be nested (lists within lists, tuples within tuples, etc.). |
Methods | Supports more methods like append() and remove() | Limited built-in methods (e.g., count(), index()) | Both can be converted to each other using list() and tuple() functions. |
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