Dive into Basic Interview Questions

     

                                               Dive into Basic Interview Questions

Some basic and important Python interview questions along with their answers:

1.What is Python?

    Python is a high-level, interpreted, programming language its directly run from source code.

2.What are the key features of Python?

    Python has several key features, including:Simple and easy-to-learn syntax

• Interpreted and dynamically-typed.
• High-level built-in data structures.
• Extensive standard library.
• Supports object-oriented, procedural, and functional programming paradigms.

3.Python supports various data types?

• Floating-point numbers (float)
• Complex numbers (complex)
• Strings (str)
• Lists (list)
• Tuples (tuple)
• Dictionaries (dict)
• Sets (set)
  

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

    

    Lists are mutable, meaning their elements can be changed after creation, while tuples are                 immutable, meaning their elements cannot be changed after creation.

5.What is a dictionary in Python?

    A dictionary in Python is an unordered collection of key-value pairs. It is defined using curly braces {}, and keys are unique within the dictionary.

6.What is init in python ?

    In Python, __init__ is a special method used as a constructor in given classes. It is automatically called when a new instance of the class is created.

7.What is pass Keyword ?

    In Python, the pass statement is a null operation, meaning it does nothing when executed.

8.Explain the difference between Python 2 and Python 3 ?

    Python 2 is legacy and no longer maintained, while Python 3 is the current version with improvements like better Unicode support, syntax changes.

9.What is a Python module? How do you import a module?

    

    A Python module is a file containing Python code that can define functions, classes, and variables. Modules can be imported using the import statement followed by the module name.

10.How do you create a function in Python?

    

    Create a function in Python, you use the def keyword followed by the function name and     parameters within parentheses, followed by a colon. The function body is indented and contains the code to be executed.

11.Explain the concept of list comprehension in Python?

    List comprehension in Python provides a concise way to create lists by iterating over an iterable and applying an expression to each element, encapsulating a loop and conditionals into a single line of code.

12.What is the difference between append() and extend() methods in Python lists?

• append() adds a single element to the end of a list.
• extend() adds multiple elements by appending each element of the iterable to the end of the list.

13.How do you handle exceptions in Python?

    handle exceptions in Python by using try-except blocks. Code that might raise an exception is placed within the try block, and corresponding error-handling code is placed within the except block.

14.What are the different ways to loop in Python?

    

    In Python, you can loop using "for" loops, which iterate over a sequence of items, or "while" loops, which continue executing as long as a condition remains true, providing flexibility in iterating over data structures and performing repetitive tasks.

15.How do you comment in Python?

• Single-line comments : ( "#" symbol )
• multi-line comments.  : (''' ''' or """ """) 

    

•  Learn more about the Basic Interview Questions by visiting the URL below:https://www.w3schools.com/python/python_quiz.asp