Python - Input and Output
You want to print a list of items on the same line separated by commas, but without a trailing comma at the end. Which code achieves this?
You want to print a list of items on the same line separated by commas, but without a trailing comma at the end. Which code achieves this?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Understand how to print list items separated by commas
Usingjoin()on a list of strings creates a single string with commas between items and no trailing comma.Step 2: Analyze other options
print(*items, sep=', ')prints items separated by commas but no trailing comma; however, if items are not strings, it fails.print(items, sep=', ')prints the list as one object.print(items, end=', ')adds comma after entire list.Final Answer:
print(', '.join(items)) -> Option DQuick Check:
Use join() to format list without trailing comma [OK]
Quick Trick: Use join() to print list with separators cleanly [OK]
Common Mistakes:
MISTAKES- Using sep with list object directly
- Forgetting to unpack list with *
- Adding trailing comma with end parameter
Master "Input and Output" in Python
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