However, before going into these details, it's important to begin with the simplest implementation possible, as shown next: import requests To implement a command line tool that is useful in day-to-day life, you'll have to consider some aspects such as input validation and the use of command line arguments. As it is not part of Python's standard library, you're going to have to install it using pip, by running the following command: pip install requests Python's standard library has some alternatives to perform HTTP requests but most of them are not that easy to use.įortunately, there's Requests, a library that implements 'HTTP for humans', as said in its documentation page. To obtain the HTML code from a website, you'll need to perform an HTTP request. For that, you're going to obtain the HTML code from the website and look for patterns that represent links in this code. In this first code example, you're going to build a command line tool to gather all links presented on a given website page. Getting the day of the week from a dateġ.Getting the list of links from a website.So, grab your favorite code editor and get started with some useful Python code examples. Then you'll polish your work, turning it into a more professional command line tool, by including data validation and support to use them with command line arguments. For each of the examples, you'll begin by implementing a basic version of the tool to understand how it works.

In this resource, you'll go through some examples of command line tools to use in your day-to-day life as a developer. As you evolve in your developer career, you improve your collection of tools, libraries and also write some custom command line tools to facilitate your work.

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