Basic questions asked in Python interview ? Avatar

1.What is Python?

Python is a dynamic, high-level, and free open-source programming language. It supports both object-oriented and procedural-oriented programming paradigms.

Key characteristics:

Interpreted: Python code is executed line by line without the need for compilation.

Dynamically typed: Variables don’t require explicit type declarations.

Readable and expressive syntax: Python emphasizes code readability through significant indentation.

Large community support: Python has an active community on platforms like Stack Overflow.

Extensive libraries: Python offers a rich ecosystem of libraries and frameworks.

2.How to Install Python?

Python can be installed on various platforms:

Windows: You can download the official installer from the Python website.

macOS: Use the official installer or install via package managers like Homebrew.

Linux: Install using package managers specific to your distribution (e.g., apt-get for Ubuntu).

3.What are the key features of Python?

Easy to code: Python’s simple syntax makes it beginner-friendly.

Object-Oriented: Supports classes, encapsulation, and inheritance.

GUI Programming: Libraries like Tkinter, PyQt, and Kivy enable GUI development.

High-level language: Abstracts system architecture and memory management.

Large community support: Active community on platforms like Stack Overflow.

Easy to debug: Clear error traces aid in identifying issues.

Portable: Code written for one platform can run on others.

Integrated: Easily integrates with other languages (e.g., C, C++).

Interpreted: No need for compilation.

Readability: Python’s straightforward syntax enhances readability.

4.What are the applications of Python?

Web Development: Python is widely used for building websites using frameworks like Django and Flask.

AI and Machine Learning: Python is the go-to language for data analysis, ML models, and AI applications.

Game Development: Pygame and other libraries facilitate game creation.

Desktop GUI Development: Tkinter, WxPython, and others support GUI applications.

Enterprise/Business Applications: Python is used for business management software (e.g., Odoo).

Software Development: Python aids in building, testing, and managing software.

Educational Purposes: Its simplicity makes it ideal for beginners.

5.What is a dynamically typed language?

In Python, variables don’t require explicit type declarations. Their type is determined at runtime based on the assigned value.

6.Difference between list and tuples in Python:


Mutable (can be modified after creation).

Denoted by square brackets ([]).

Supports operations like append, remove, and sort.


Immutable (cannot be modified after creation).

Denoted by parentheses (()).

Used for fixed data that shouldn’t change.

7.What are Pickling and Unpickling?

Pickling: Serialization process to convert Python objects into a byte stream (usually for storage or transmission).

Unpickling: Deserialization process to reconstruct Python objects from the byte stream. Avatar

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