Python lists practice
Python lists practice for solving collection problems step by step.
Lists are where Python practice starts to look like real problem solving. Use this hub to practice reading, counting, summing, filtering, transforming, and scanning list values.
Core skill
Work with many values without losing order
Best start
Iteration, totals, and counts
Next layer
Filtering, transforming, and scanning
Access path
Direct public lessons plus curriculum-safe links
Practice focus
List practice connects loops to data structures.
A list problem usually asks you to inspect each item and produce either one value or a new list. That means the important question is not just how to loop, but what state should change while the loop runs.
Work through these problems in groups. First read and count list values, then produce totals, then build a new list, then scan for a best or matching value. That order keeps the logic small enough to debug.
Exercise list
List exercises to solve next
The list contains public preview lessons plus full-curriculum practice targets. Full-curriculum items use the safe curriculum link until individual teaser pages are available.
List iteration
Print List Items
Read each list item once and keep the order clear.
List aggregation
Sum List Numbers
Turn many numeric values into one total.
List size
Count List Elements
Count items explicitly so loop mechanics become visible.
Filtering
Filter Even Numbers
Return a new list containing only values that pass a condition.
Transformation
Square Each Number
Build a new list by applying the same operation to each item.
Scanning
Find Maximum Value
Track the best value seen while moving through the list.
Practice routine
A simple list routine
- 1. Decide whether the output is one value or a new list.
- 2. Initialize the result before the loop.
- 3. Update the result once per item.
- 4. Check empty lists and single-item lists before moving on.
Related topic hubs
Continue with a related Python practice path.
Python loops practice
Practice iteration, accumulation, filtering, and loop control.
Python functions practice
Practice parameters, returns, small helpers, and reusable logic.
Python strings practice
Practice text values, formatting, traversal, and character checks.
Python practice hub
Use the main practice hub for beginner, topic, DSA, and interview paths.
Public preview links
Public preview exercises open directly as lesson pages for logged-out visitors.
Full curriculum links
Full-curriculum exercises point to the public curriculum page instead of gated lesson redirects.