How to run Multiple Terminal Sessions on Linux VPS Server

In this article, I will introduce you with one of the handy tool for your vps servers. It is an extremely useful app for maintaining multiple terminal sessions through just one window! This Command Line Utility is called Screen.You may think of it as a Manager who manages different terminal sessions for you using shell.…

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Python Nested List Comprehension for…in goes from left to right!

The Confusion Scenario: You were asked to write the equivalent list comprehension of the following code: for i in range(6): for j in range(i): j Before, starting with the above one we try the simplest one: t = [] for i in range(6): t.append(i**2) We already know the syntax of list comprehension is as follows: expression…

How to take Password input in Python

Did you know? There is a python module in Python Standard Library called getpass. The purpose of this library is to securely take input from user! The module is very handy for sensitive inputs such as passwords / keys or any kind of credentials. Simplest example of getpass could be this: import getpass password =…

When to use Abstract Class in Python?

In this article, I would like to answer a common question that pops up in mind whenever we start to learn Object Oriented Programming in Python.  But before we begin exploring the use case, first lets briefly discuss about what really is an abstract class in python: Abstract Class Abstract Class is a class that…