Learn to Code. Shape Your Future
Understanding how Python virtualenv works is one of the things you should know when you get started with Python. Python virtualenv creates an isolated environment in which you can install all Python dependencies you need for your project. If you work on multiple projects that require different dependencies using virtual environments allows to keep those … Read more
I have heard people asking what is the difference between grep and find multiple times in the last few years. It seemed obvious to me, but maybe it’s not if you are getting started with Linux. What is the difference between the grep and find commands? Find is a utility to search for files and … Read more
In this tutorial you will learn how to find the port of a process running on a Linux system. This is a very common thing we need to know when we manage applications on Linux, especially if they have been configured by someone else. How do you find the port of a process running on … Read more
Are you using Linux and you have seen the “Command Not Found” error while trying to execute a command? It’s time to find out why. We will look at this error together and understand how to fix it. What is the cause of the command not found error? The “Command not found” error is caused … Read more
Create a Python program that converts any text you provide into speech (text-to-speech).
The export command is a built-in command of the Bash shell that is very handy to know when you work on Linux systems or create Bash scripts. What does the export command do in Linux? The export command is used to make variables or functions in the current shell environment also available to child processes … Read more
You execute your Python program and you see an error, “NameError: name … is not defined”. What does it mean? In this article I will explain you what this error is and how you can quickly fix it. What causes a Python NameError? The Python NameError occurs when Python cannot recognise a name in your … Read more
Have you ever seen the message “syntax error near unexpected token” while running one of your Bash scripts? In this guide, I will show you why this error occurs and how to fix it. “Error Near Unexpected Token” is a Bash syntax error that reports bad syntax in your script or command. Many things can … Read more
Knowing how to compare strings in Python is a must if you want to be a Python programmer. In this guide you will learn: First of all, Python compares strings character by character. Characters in the same position are read from both strings and compared. This is done behind the scenes by Python using the … Read more
I’m writing a Python program and when I execute it I see the KeyError message. How can I fix it? The KeyError exception is an error that many programmers see when they start using Python dictionaries. The following points are important to understand this error: What does KeyError mean? A KeyError is a way for … Read more
