COMMON PYTHON INTERVIEW QUESTIONS AND ANSWERS

Common Python Interview Questions and Answers

Common Python Interview Questions and Answers

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Basic Python Interview Questions

1. What is Python?


Python is a high-level, interpreted programming language known for its simplicity and readability. Python Course in Bangalore  It supports multiple programming paradigms, including procedural, object-oriented, and functional programming. Python is widely used in web development, data analysis, artificial intelligence, scientific computing, and more

2. What are Python's key features?



  • Simple and Readable Syntax: Easy to learn and understand.


  • Interpreted Language: Executes code line by line, facilitating debugging.


  • Dynamic Typing: No need to declare variable types explicitly.


  • Extensive Standard Library: Provides modules and functions for various tasks.Python Training in Bangalore


  • Cross-Platform Compatibility: Runs on Windows, macOS, Linux, etc.



  1. What is a decorator in Python? How do you use them?


A decorator is a way to add functionality to a function in a reusable manner. It's essentially a function that takes another function as input, adds some behavior to it, and returns the modified function. Best Python Course in Bangalore

  1. What is the difference between a list and a tuple in Python?






























Feature List Tuple
Mutability Mutable (elements can be changed) Immutable (elements cannot be changed)
Syntax Defined using square brackets [] Defined using parentheses ()
Performance Generally slightly slower for iteration and appending Generally slightly faster for iteration
Use Cases Collections of items that might need modification Collections of items that should not be changed (e.g., coordinates, configuration)


  1. What is the Global Interpreter Lock (GIL) in Python? What are its implications?


The Global Interpreter Lock (GIL) is a mutex (or a lock) that allows only one thread to hold control of the Python interpreter at any given time. This means that in a multi-threaded Python program, only one thread can execute Python bytecode at a time, even if the machine has multiple CPU cores.Python Course Training in Bangalore

 

  1. Explain Python's memory management.


Python uses automatic memory management. This means that you don't have to explicitly allocate and deallocate memory like in languages such as C or C++. Python's memory manager handles this behind the scenes through:

  • Reference Counting: Python keeps track of how many references (variables pointing to an object) an object has. Best Python Course in Bangalore

  • When the reference count of an object becomes zero, it means no other part of the program is using it, and its memory can be deallocated.


Conclusion


In 2025,Python will be more important than ever for advancing careers across many different industries. As we've seen, there are several exciting career paths you can take with Python , each providing unique ways to work with data and drive impactful decisions., At Nearlearn is the Top Python Training in Bangalore  we understand the power of data and are dedicated to providing top-notch training solutions that empower professionals to harness this power effectively. One of the most transformative tools we train individuals on is Python.

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