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Python Interview Question and Answers

Python Interview Question and Answers

Last Updated on Aug 23, 2023, 2k Views


Python Interview Question and Answers

Python Course interview questions along with their answers. Keep in mind that interview questions can vary in complexity, so these questions cover a range of topics from basic to more advanced. Remember to tailor your answers based on your level of expertise and the specific job you're applying for.

1. What is Python?

Python Course is a high-level, interpreted programming language known for its readability and ease of use. It emphasizes code readability and supports multiple programming paradigms.

2. How do you comment out multiple lines in Python?

You can use triple quotes (''') for multi-line comments.

3. What are the key differences between Python 2 and Python 3?

Python 3 Course is not backward compatible with Python 2 Course. Some differences include print statement vs. print function,
Unicode handling, division behavior, and more.

4. Explain the differences between a tuple and a list.

Tuples are immutable and use parentheses, while lists are mutable and use square brackets. Tuples are

typically used for fixed collections, while lists are used for dynamic collections.

5. How do you handle exceptions in Python?

You can use try, except, else, and finally blocks to handle exceptions. Exceptions are raised when errors occur

during program execution.

6. What is a virtual environment in Python?

A virtual environment is a self-contained directory that contains a specific Python interpreter and libraries. It

allows you to manage dependencies for different projects separately.

7. Explain the Global Interpreter Lock (GIL).

The GIL is a mutex used in CPython (the standard Python implementation) that allows only one thread to execute in the interpreter at a time. This limits the effectiveness of multi-threading for CPU-bound tasks.

8. How can you open and close a file in Python?

You can use the open() function to open a file and the close() method to close it. However, a better practice is to use a with statement which automatically closes the file when you're done.

9. What are decorators in Python?

Decorators are functions that modify the behavior of another function. They are often used to add functionality to functions without modifying their code directly.

10. How does list comprehension work?

List comprehension is a concise way to create lists. It consists of an expression followed by a for clause and an optional if clause. It applies the expression to each item in the sequence and filters with the if condition.

11. Explain the concept of inheritance in Python.

Inheritance is a fundamental OOP concept where a new class (subclass/derived class) is created from an existing class (superclass/base class). The subclass inherits attributes and methods from the superclass.

12. What is the difference between shallow copy and deep copy?

A shallow copy creates a new object but does not copy nested objects. A deep copy creates a completely independent copy of the original object, including all nested objects.

13. How can you handle data serialization in Python?

Python Course provides modules like pickle and json for serialization. pickle is used for serializing Python Course objects, while json is used for serializing data to a human-readable format.

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