Challenge
Last five readings
Show only the five most recent CO2 readings with the slice [-5:], as a dashboard does, then add a new reading and print how much the level changed across the window.
Results for “negative slice”
6 results
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Challenge
Off-by-one slice
A slice meant to take the number from the container tag CG-0042 gives -004. Predict it, work out where indexes start and where a slice ends, fix it, then slice a sample label yourself.
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Example
String Indexing and Slicing
Accessing individual characters and text fragments. Zero-based indexing in Python.
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Quiz
Python Strings Quiz
…quiz on Python strings: 15 questions on joining, indexing, slicing, len(), split(), join() and string methods, with instant answers.
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Example
List Indexing and Modification
Accessing list elements by index. Changing and removing elements.
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Article Python Fundamentals
Python Functions for Beginners
…doing any maths. Stretch goal: add a function that rejects negative numbers and asks again. 2. Countdown Write countdown(start) that prints the numbers from start down to 1, followed by "Liftoff!"…
