Pankaj Kumar

The idea of Python main function is to execute some code only when the Python script is executed directly. The function should not execute when the same script is imported as a Python module in another program. How to Write…

Environment variables is the set of key-value pairs for the current user environment. They are generally set by the operating system and the current user-specific configurations. For example, in a Unix environment, the environment variables are set using the user…

Python command-line arguments are the parameters provided to the script while executing it. The command-line arguments are used to provide specific inputs to the program. What is the benefit of Python Command Line Arguments? Python command-line arguments help us to…

Python doesn’t have a ternary operator. But, it supports writing an if-else statement in such a way that it works as a Python ternary operator. Why Python doesn’t have a special ternary operator? Many programming languages have ternary operators. But,…

Python self variable is used to bind the instance of the class to the instance method. We have to explicitly declare it as the first method argument to access the instance variables and methods. This variable is used only with…

Python modulo operator (%) is used to get the remainder of a division. The modulo operation is supported for integers and floating point numbers. The syntax of modulo operator is a % b. Here “a” is dividend and “b” is…

Python yield keyword is used to create a generator function. The yield keyword can be used only inside a function body. When a function contains yield expression, it automatically becomes a generator function. The generator function returns an Iterator known…

We can create loops in Python using for loop and while loop. The for loop is used to iterate over a collection of items such as Tuple, List, Set, Dictionary, String, etc. Python for loop is always used with the…