To get started working with Python 3, you’ll need to have access to the Python interpreter. There are several common ways to accomplish this:
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Note: There is a chance that Python may have been shipped with your operating system and is already installed. Even if that is the case, it may be that the installed version is outdated, in which case you will want to obtain the latest version anyhow.
In this Python installation guide, you’ll see step by step how to set up a working Python 3 distribution on Windows, macOS, Linux, iOS, and Android. So let’s get started!
Windows
It is highly unlikely that your Windows system shipped with Python already installed. Windows systems typically do not. Fortunately, installing does not involve much more than downloading the Python installer from the python.org website and running it. Let’s take a look at how to install Python 3 on Windows:
Step 1: Download the Python 3 Installer
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Once you have chosen and downloaded an installer, simply run it by double-clicking on the downloaded file. A dialog should appear.
Important: You want to be sure to check the box that says Add Python 3.x to PATH as shown to ensure that the interpreter will be placed in your execution path.
Then just click Install Now. That should be all there is to it. A few minutes later you should have a working Python 3 installation on your system.
Mac
While current versions of macOS (previously known as “Mac OS X”) include a version of Python 2, it is likely out of date by a few months. Also, this tutorial series uses Python 3, so let’s get you upgraded to that.
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- Open a browser and navigate to http://brew.sh/. After the page has finished loading, select the Homebrew bootstrap code under “Install Homebrew”. Then hit Cmd+C to copy it to the clipboard. Make sure you’ve captured the text of the complete command because otherwise the installation will fail.
- Now you need to open a Terminal.app window, paste the Homebrew bootstrap code, and then hit Enter. This will begin the Homebrew installation.
- If you’re doing this on a fresh install of macOS, you may get a pop up alert asking you to install Apple’s “command line developer tools”. You’ll need those to continue with the installation, so please confirm the dialog box by clicking on “Install”.
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$ brew install python3 |
Note: When you copy this command, be sure you don’t include the $ character at the beginning. That’s just an indicator that this is a console command.
This will download and install the latest version of Python. After the Homebrew brew install command finishes, Python 3 should be installed on your system.
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Assuming everything went well and you saw the output from Pip in your command prompt window…congratulations! You just installed Python on your system, and you’re all set to continue with the next section in this tutorial.
[Reference: https://realpython.com/installing-python/]