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Python list operations.

Python/Codingeasy0.4 min readPremium
Frequency
Low
Asked at 1 company
Category
179
questions in Python/Coding
Difficulty Split
127E|24M|28H
in this category
Total Bank
1,863
across 7 categories
Asked at these companies
Comcast
Key Concepts Tested
python
Expert AnswerPremium
78 wordsInterview-ready
**Core Operations:** Indexing, slicing (lst[i:j:k]), append, extend, insert, remove, pop, sort, reverse. Membership (in) is O(n); for repeated lookup use set. **Gotchas:** lst.reverse() and lst.sort() mutate in-place, return None. reversed(lst) and sorted(lst) return new iterable/list. lst += [1] mutates; lst = lst + [1] creates new. Slice assignment lst[1:3] = [a,b] can change length. **Production:** Prefer list comprehensions over manual loops. Use bisect for sorted lists....
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