Programming 

Python Command Line Arguments

Adding the capability of processing Python command line arguments provides a user-friendly interface to your text-based command line program. It’s similar to what a graphical user interface is for a visual application that’s manipulated by graphical elements or widgets. Python exposes a mechanism to capture and extract your Python command line arguments. These values can be used to modify the behavior of a program. For example, if your program processes data read from a file, then you can pass the name of the file to your program, rather than hard-coding…

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Programming 

Python Regex – How to Match the Start of Line (^) and End of Line ($)

This article is all about the start of line ^ and end of line $ regular expressions in Python’s re library. These two regexes are fundamental to all regular expressions—even outside the Python world. So invest 5 minutes now and master them once and for all! Python Re Start-of-String (^) Regex You can use the caret operator ^ to match the beginning of the string. For example, this is useful if you want to ensure that a pattern appears at the beginning of a string. Here’s an example: >>> import re…

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MatLab 

Build a JavaScript Command Line Interface (CLI) with Node.js

As great as Node.js is for “traditional” web applications, its potential uses are far broader. Microservices, REST APIs, tooling, working with the Internet of Things and even desktop applications: it’s got your back. Another area where Node.js is really useful is for building command-line applications — and that’s what we’re going to be doing in this article. We’re going to start by looking at a number of third-party packages designed to help work with the command line, then build a real-world example from scratch. What we’re going to build is…

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trying to container after vertical line on right side

Trying to have container after vertical line on the right side** I have two separate flex containers, and one will be on the left side of the vertical line, while the other one will be on the right side of the vertical line. I was originally thinking to put all of both of them inside one grid container and then try to have appropriate padding to have one on the left side of the line and vice versa, but I was messing up and thought that idea was incorrect. What…

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