Example
For Loop Basics
…iterates through sequence elements. Basic iteration over lists.
Results for “lists”
Showing 41–50 of 92
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Challenge
Any number of values
…number of numbers, call it with loose values and with a list unpacked by *, then add a keyword-only decimals option after *values and return None when there are no values.
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Challenge
One orbit short
…find out where range() stops, fix it with ORBITS + 1, then list every third orbit with a range() step.
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Challenge
Retry the uplink
Send a command up to three times, taking each result from a list of simulated radio replies, and stop at the first success with break; then wait 2, 4, 8 seconds between attempts, as real retry code…
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Challenge
Index by ID
…is found with one lookup instead of a search through the list, then answer a list of requests, including an ID that isn't on the manifest.
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Challenge
Normalise a command
…with strip() and lower(), check it against the command list, then accept underscores and dashes too, so commands match however operators type them.
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Challenge
Launch schedule digest
Every morning, mission control wants one short list: which launches are coming up, in what order, and how long until each. The launch archive's API has all of it, as JSON, in no particular order and…
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Challenge
Counter
…collections.Counter, which starts every key at 0, then list the levels from most to least common with most_common().
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Article Python Fundamentals
Nested Loops in Python
…") # Empty surface print() # New line after each row # List of found rovers print("\n=== FOUND ROVERS REPORT ===\n") for scan_y in range(10): for scan_x in range(10): for x, y, name in lost_rovers: if…
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Article Python Fundamentals
Variables and data types in Python
…= True engines_active = False Complex Data Types Lists Ordered collections of items, great for storing sequences of data: planet_names = ["Mercury", "Venus", "Earth", "Mars"] temperatures = [167, 464…
