Tech Library For Developers
In this tutorial, we will learn to evaluate a mathematical expression in a string which we can perform using an eval built -in function in a different way that we will discuss here. Mathematical Expression At times we get the input as a string wherein string there is an expression in such cases we have … Read more
In this tutorial, we will learn How to add to the PYTHONPATH in Windows, so it finds my modules/packages, which we need to do though opening the environment variable and adding the location address to the ‘PATH’ of it. To do the same we need to follow certain steps and to do so we need … Read more
In this tutorial, we will learn What meta classes in Python meta classes are nothing but the classes whose instances are classes only. Or we can also be called it the classes of the class. which has tasks to complete as defined by the behavior of the class at the time of the creation. We … Read more
In This tutorial, we will learn How do get the last element of a list there are four ways to do so slicing, using for Loop, using pop, and using negative indexing. So let’s discuss each with an example. List In Python There are different ways to get the last element of the list Using … Read more
In this tutorial, we will learn What Are Ternary Conditional Operators In Python where ternary operators are conditional operators which deal with if – else conditions in a single line with all the statements to be executed when if the condition is true or false Ternary Operators They are the operator used as if else, … Read more
In this tutorial, we will learn How to print colored text to the terminal where each color has its own color code for which we give the color to understand it there is a list below with most of the colors along with their code which will result into that particular color let’s look at … Read more
How Do I Remove All Packages Installed by pip n python it is a two- step process where first we select all the packages and then uninstall with the command uninstall to understand it in a better way following the instructions given below. Packages in Python Packages in Python are the directories of python modules … Read more
In this tutorial, we will learn How to Change the name of a key in the dictionary where the dictionary stores the data in the form of key value pair and to rename we simply use pop() to rename the old name with a new name. Dictionary In Python A dictionary in python is a … Read more
In this Tutorial, we will learn more about How To Add An Extra Column To A NumPy Array which we can do using two different ways which are using numpy. concatenate is somewhat the same as concatenating two arrays and numpy.vstack method. NumPy Numpy is a large library in python that deals with single and … Read more
In this tutorial, we will learn how to How compare two dates, we can compare two dates in python using a module datetime where we can perform an operation to find greater or lesser dates in between two given dates. Compare Two Dates In python, we perform most of the operations with the help of … Read more
