Brief me about Python language. Why is it popular?
A very simple and easy-to-learn programming language is referred to as Python. Python is easily readable and showcases versatility. The popularity of Python involves clean syntax and large libraries. It is used to work across numerous platforms and programming styles.
Kindly state the differences between Python 2 and Python 3.
Nowadays, Python 3 is preferable for new projects as it has improved features like better Unicode handling, changes in division behavior, and updated libraries. Python 2 has become outdated and is no longer supported. known for its readability and versatility. The popularity of Python involves clean syntax, large libraries, and the ability to work across numerous platforms and programming styles.
How does Python deal with data types and variables?
Python is dynamically typed, so the variables do not need a type declared. Integer, float, string, list, tuple, and dictionary are some common types of data that can be used with variables very easily without their type declaration.
Do you know about a list and a tuple? How are they different?
A list is a changeable, ordered list that can be modified. A tuple is an unchangeable list, i.e., once formed, it cannot be modified. Lists take more memory and are slower than tuples.
What is meant by a dictionary in Python?
A dictionary keeps data in key-value pairs, enabling quick access to values via unique keys. It's handy when you want to map one data to another, such as keeping names and ages together.
How do you deal with errors and exceptions in Python?
{Try, Except} blocks are used to handle errors and exceptions. If there is an error in the (try) block, Python jumps to the (except) block to resolve it, thus avoiding crashes of the program.
What are Python functions, and how do you define them?
A Python function involving a reusable block of code for performing a specific task. So, to define the function, use the (def) keyword, followed by the function name and parameters. Example: def my_function():.
A shallow copy and a deep copy. Explain how they differ in Python.
A shallow copy duplicates the outer object, but not nested objects. A deep copy creates an entirely new object, including copies of nested objects, ensuring no shared references between the original and copied objects.
Can you explain how loops work in Python?
Loops allow repeating code. A (for) loop iterates over a sequence, like a list, while a (while) loop runs as long as a condition is true. Both help avoid code repetition.
Explain Python modules and how to import them.
Modules are files containing Python code (functions, variables). You can import them using the import keyword. Example: (import math) allows access to math functions like math.sqrt().
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