Python lists: a desk-side cheat sheet

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A quick reference for a useful everyday data structure.

Key Takeaways
  • Create, append, slice
  • Transform values

Create, append, slice

Example
values = [10, 20, 30]
values.append(40)
first_two = values[:2]

Transform values

Example
squared = [x ** 2 for x in values]

Use lists when order matters and you need a mutable collection.

Read the Python tutorial


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