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What is the difference between list and tuples in Python?
Lists and tuples in Python are both used to store collections of items, but they have key differences: 1. Mutability: - Lists are mutable (can be changed) - Tuples are immutable (cannot be changed) Think of a list like a whiteboard where you can add, remove, or change items. A tuple is more like a pRead more
Lists and tuples in Python are both used to store collections of items, but they have key differences:
1. Mutability:
– Lists are mutable (can be changed)
– Tuples are immutable (cannot be changed)
Think of a list like a whiteboard where you can add, remove, or change items. A tuple is more like a printed document – once created, its content is fixed.
2. Syntax:
– Lists use square brackets: [1, 2, 3]
– Tuples use parentheses: (1, 2, 3)
3. Performance:
– Tuples are slightly faster and use less memory
4. Usage:
– Lists are ideal for collections that might change
– Tuples are good for fixed data or as dictionary keys
Real-life comparisons:
– List: Shopping list (items can be added or removed)
– Tuple: Date of birth (day, month, year – doesn’t change)
Choose lists when you need a flexible, changeable collection. Use tuples for data that shouldn’t be altered, like coordinates or RGB color values.
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The four main principles of Object-Oriented Programming (OOP) are: Encapsulation: Bundling data and methods that operate on that data within a single unit (object). It's like a car's engine hidden under the hood - you don't need to know how it works to drive the car. Abstraction: Hiding complex implRead more
The four main principles of Object-Oriented Programming (OOP) are:
These principles help create organized, reusable, and efficient code. They allow programmers to model real-world objects and relationships in their software, making it easier to understand and maintain.
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