KwickClips Python · 40 sec · free
Why does print(marks.sort()) show None?
Short answer. sort() changes the list itself and returns None.
Does sorted() change the original list?
No. It gives a new sorted list.
Remember
| sorted(): new list |
| sort(): same list, returns None |
You printed a sorted list, and got None. Why? Sorted gives back a new sorted list. Sort changes the list itself and returns None. So print the list after sort. Sorted gives a new list. Sort changes the same list and returns None.
This clip is from the full lesson: List Methods and Built-in Functions — 7 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 11 Computer Science (083), CBSE Class 11 Computer Science (083), CBSE Class 11 Computer Science (083), CBSE Class 11 Computer Science Essentials (083)
More KwickClips from this lesson
Why did append give a nested list?45 sec
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How do you find an average without a loop?41 sec
Why did marks become None?41 secVoice-over is AI-generated; the script is written and checked by Kajal Ma'am. Confirm anything you plan around against your official board document. We never ask for a password or an OTP.

