How to Install Python on Your System: A Guide
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Installing the latest version of Python on your computer could be a common requirement for you as a Python programmer. Fortunately, you’ll have a multitude of installation options. For example, you can download the official Python installer from Python.org, use your operating system’s package manager or app store, and more.
In this tutorial, you’ll focus on official CPython distributions, which are generally the best option for learning to program with the language. However, you’ll also learn about a few other distributions, like the one available on Homebrew for macOS users.
In this tutorial, you’ll learn how to:
- Check whether a version of Python is installed on your system
- Install or update to the latest Python on Windows, macOS, and Linux
- Install Python on mobile devices like phones or tablets
- Use Python on your browser with online interpreters
This tutorial covers installing the latest Python on the most important platforms or operating systems, such as Windows, macOS, Linux, iOS, and Android. However, it doesn’t cover all the existing Linux distributions, which would be a huge task. Anyway, you’ll find instructions for the most popular distros nowadays.
To get the most out of this tutorial, you should be comfortable using your operating system’s terminal or command line.
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Take the Quiz: Test your knowledge with our interactive “Python Installation and Setup” quiz. You’ll receive a score upon completion to help you track your learning progress:
Interactive Quiz
Python Installation and SetupIn this quiz, you'll test your understanding of how to install or update Python on your computer. With this knowledge, you'll be able to set up Python on various operating systems, including Windows, macOS, and Linux.
Windows: How to Check or Get Python
In this section, you’ll learn to check whether Python is installed on your Windows operating system (OS) and which version you have. You’ll also explore three installation options that you can use on Windows.
Note: In this tutorial, you’ll focus on installing the latest version of Python in your current operating system (OS) rather than on installing multiple versions of Python. If you want to install several versions of Python in your OS, then check out the Managing Multiple Python Versions With pyenv tutorial. Note that on Windows machines, you’d have to use pyenv-win instead of pyenv.
For a more comprehensive guide on setting up a Windows machine for Python programming, check out Your Python Coding Environment on Windows: Setup Guide.
Checking the Python Version on Windows
To check whether you already have Python on your Windows machine, open a command-line application like PowerShell or the Windows Terminal.
Follow the steps below to open PowerShell on Windows:
- Press the Win key.
- Type
PowerShell. - Press Enter.
Alternatively, you can right-click the Start button and select Windows PowerShell or Windows PowerShell (Admin). In some versions of Windows, you’ll find Terminal or Terminal (admin).
Note: To learn more about your options for the Windows terminal, check out Using the Terminal on Windows.
With the command line open, type in the following command and press the Enter key:
PS> python --version
Python 3.x.z
Using the --version switch will show you the installed version. Note that the 3.x.z part is a placeholder here. In your machine, x and z will be numbers corresponding to the specific version you have installed.
Alternatively, you can use the -V switch:
PS> python -V
Python 3.x.z
Using the python -V or python—-version command, you can check whether Python is installed on your system and learn what version you have. If Python isn’t installed on your OS, you’ll get an error message.
Knowing the Python Installation Options on Windows
Read the full article at https://realpython.com/installing-python/ »
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August 26, 2024 at 07:30PM
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