Kit Library / Computer Science / Programming Fundamentals
Quick KitShared by a Veda learner · Generated with Veda AI
Veda Bites are swipeable micro-lessons — each one teaches exactly one idea. Here's a taste from this kit; the app has the full deck.
The Swiss Army knife of data.
A list in Python is an ordered, mutable collection of items. It can hold elements of different types (integers, strings, even other lists) and is defined using square brackets `[]`. Lists are zero-indexed, meaning the first element is at index `0`.
↳ A Python list is an ordered, changeable sequence written as a comma-separated list inside square brackets.
Start with empty or filled.
Create a list by placing items inside `[]` separated by commas. An empty list is simply `[]` or using the `list()` constructor.
↳ Use square brackets or the list() constructor to create a list.
Start at 0, end at -1.
Access items by their position. The first item has index `0`, the second `1`, and so on. Python also supports negative indexing, where `-1` refers to the last item, `-2` to the second last, etc.
↳ Use positive indices from the start (0) and negative indices from the end (-1).
Python lists are ordered, mutable sequences defined with square brackets. They support indexing (including negative), slicing, and a variety of methods for adding, removing, and modifying items. List comprehensions offer...
~8 min · full explanation, examples & memory tricks in the app
20 questions laddered from warm-up to topper-level, each with an explanation. A taste:
Which of the following correctly creates a list in Python?
Beginnerlist = [1, 2, 3]
Square brackets `[]` are used to create a list in Python. Curly braces create a set, parentheses create a tuple, and angle brackets are not valid.
What is the index of the first element in a Python list?
Beginner0
Python uses zero-based indexing, so the first element is at index 0.
Given `my_list = [10, 20, 30, 40]`, what does `my_list[-1]` return?
Beginner40
Negative indexing starts from the end; `-1` refers to the last element, which is 40.
What is the result of `len([1, 2, 3, 4])`?
Beginner4
The `len()` function returns the number of elements in the list, which is 4.
17 flashcards in this kit — the app reviews them with spaced repetition so the right card returns on the right day.
The full Veda Bites deck, complete notes, spaced-repetition flashcards, leveled MCQs, tests and games for this kit — plus Daily Facts and the Arena, every day.
