If you’re updating to a new patch of Python (3.x.a to 3.x.b), when you run the installer, it will prompt you to “Upgrade Now.” The installer will look like this:Ĭlicking on the button will replace the existing version of Python with the new version. All you have to do is visit the Python downloads page and download the latest version. Updating to a new Python version is easy on a computer running Windows. To verify the version of Python being used, you can run: python3 -V The prompt should look like this:Īll you have to do is type the right selection number, and you will have updated Python to the newest version on your Linux machine. Enter this command to configure Python 3: sudo update-alternatives -config python3Ī list of options will appear, and you will be prompted to pick which version of Python you want Python 3 to point to. However, by default, Python will point to the previously installed version of Python 3.Īfter installation completes, you must update Python 3 to point to Python 3.9. You can now update the apt cache and install the Python 3.9 package: sudo apt update Using the Apt package manager is the easiest method of installing Python 3.9 on Linux.įirst, you must configure the deadsnakes PPA to your machine by running the following command: sudo add-apt-repository ppa:deadsnakes/ppa If you’re having trouble installing Python on your computer, reading our Python installation guide will help. Note: If you’ve not installed Python on your computer yet, you cannot update to a newer version. Updating Python on computers with Linux or macOS can be more complicated. In other words, you won’t need to change the PATH variable every time you want to use another version of Python.īut the launcher only comes installed on the Windows version of Python 3. You can specify which version of Python you want to use to run code with simple switches in commands (like “py -3.6”).

Allows you to use two different versions of Python 3 at the same time.

Users can run Python from any shell using the command “py.” Typing “python” is no longer required.If you want to move from Python 2.x to 3.x, you don’t have to uninstall the previous version unless you don’t want to use it anymore.įurthermore, Python 3 now comes with the “py.exe” launcher integrated by default. It is possible to install two major versions of Python – say, Python 2.x and Python 3.x – on one computer and use both.

How to Update Python in Linux, Mac, or Windows

Update python version windows