Code Challenge
Swap two workshop labels without losing either original value. Use tuple unpacking rather than a temporary overwrite.
Understand the idea
Write your own solution before opening the worked answer. Predict the output from the supplied values, then compare the actual result. Check both an ordinary case and the boundary described below; a passing example is more useful when you can explain why it passes.
Where to try it
Open this example with Try in playground. The code loads as editable text and does not run until you select Run. The first run downloads Python. Each run starts fresh; temporary files created by a script are not files on your PC.
Your task
Swap two workshop labels without losing either original value. Use tuple unpacking rather than a temporary overwrite.
Show the worked solution
first, second = "SQL", "Python"
first, second = second, first
print(first, second)
Check the result
The output is Python SQL.
Test one more case
Repeat with two numeric values and explain when the right-hand expressions are evaluated.