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How to update Python version in Terminal?

I’ve updated my version of Python to 3.11, but Terminal is printing different versions, depending on what command I enter. Entering python3 —version prints Python 3.9.13 . Entering python —version prints Python 3.9.6 . When I go to the actual Python framework, I can see that 3.11 is installed and is the current version, per the shortcut there. There are multiple versions of Python—Python 3.7, 3.8, etc.—there; perhaps this is the issue. I’ve looked into uninstalling some or all versions of Python, but I worry that will just make it worse—I’m not the most experienced programmer. I’ve also tried adding an alias to the .zshrc file per other posts, but it didn’t work. I did save the file correctly, for what it’s worth. Any advice is appreciated. macOS Ventura 13.0 Fix: I created a new user on my computer, which isn’t a true fix, but it allowed me to bypass this issue (messy PATH) with relative ease.

3 Answers 3

A terminal in a unix-based OS (including Darwin / MacOS and Linux) will search for the command you have typed in several places, in order, and the first match found will stop the search from finding other possible commands with the same name.

To simplify the answer, I’ll limit this to the bash shell as I don’t use ZSH, but I think the answer should be similar in both shells.

After you type in a line of input and hit enter, your shell will modify its input so that it expands variable interpolations and such things and then will take the first token (first «word») and search for that word as a command name.

Commands can be found in several places, from builtin commands, to aliases, to shell functions and if the command can’t be found there, the shell will begin looking at specific locations in your filesystem to look for files that are named the same as your command. The first match wins, so if you have several pythons in your PATH, the first one will be the one that is selected.

The set of locations in your filesystem the shell will look for the command is stored in an environment variable called PATH in the shell and is generally available to view and set.

or. for slightly easier reading:

which python will let you see what python version your shell is finding first in the PATH and type python will let you know if for some reason you have a function or alias named python that happens to overshadow your filesystem python executables.

Also, bash maintains an internal hash table of where it has previously found commands. So if you type python and bash finds it in /usr/bin/python, then it will remember that for the rest of the session. If you’d like it to look again, because perhaps you have installed a new python you expect it to find first, you can type hash -r to reset the hash table to a blank new one.

All that being said, if you are starting to develop in Python, you’re going to need to handle different versions of Python.

To start down that road, check out:

I recommend asdf as it can work for many things, not just python. Also, you’ll probably want a decent dependency manager sooner rather than later for your project, so I’d check out poetry and pipenv:

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How to Update Python Version? — [Upgrade Python Version]

Are you looking to update Python version to the latest python version? Then this blog post will guide you with how to upgrade Python version.

List of content you will read in this article:

Python is an open-source high-level programming language that allows users to execute commands, plugins on their machine, and even software from several major suppliers. It means you can operate it on many different operating systems, including the Windows VPS Server. Python is a cross-platform programing language.

Pip is one of the best applications for Python package installation and administration. Pip’s popularity stems from the many apps that use this tool. Pip enables 3rd Party package installed to manage binary packages with the quickly configured package manager. Since Python’s latest releases have piping as normal, this guide will explain how to install PIP and how to update Python version with a complete step-by-step guide.

What is PIP?

PIP is a software management framework for installing and managing Python-written program packages. It is called the ‘preferred software installer’ or ‘Pip Installs Packages.’ PIP, used for Python, is a command-line interface for handling PyPI program installation. You might need to upgrade PIP if you’re using an earlier version of Python on Windows. Download the application file, open the command- line and start the installer to run PIP on Windows quickly. It will teach you how PIP is installed on Windows and how it can be modified, upgraded, and set up.

How to update Python on Windows Operating System?

There are two simple ways to update your current Python version with the latest one. They are as follows:

So let’s see how we can update the Python version with these two methods, one by one.

Method 1: Python update on Windows using the Python Installer

This method of updating the Python version will work if Python is installed or not on your System.

If Python is already installed on your system, you can check it using the python -V command.

Step 1: Download the Python installer from the Official Website of Python

The easiest way to update the Python version is to download the latest version from the official website ( https://www.python.org/downloads/ )

You can click on the Download Python 3.11.0 button, and it will download the latest compatible Python version for your system.

Step 2: Install the Downloaded Python Installer

After downloading the exe file, double-click on it to install Python.

Step 3: Install Python

Now, you can install the latest version of Python.

Check the “Add python.ext to PATH”, then click on the “ Install Now ” button.

This will start the installation process.

After processing, the latest version of Python will be installed on your system.

Click on the “Close” Button.

Step 4: Verify the Update

After successful installation, you can verify whether or not the latest version is installed on your system. To check the version, you can again run the same command, python -V , on the prompt command.

Now, you can see that it is showing the latest installed version, i.e., Python 3.11.0.

Note: If it still shows the old version, you may restart your system . Or uninstall the old version from the control panel .

Method 2: Install Python using Command Line Only using the Chocolatey Package Manager

Chocolatey is a Package Manager command line tool for windows, and we can use it to install software for our window system. In our case, we can use it to install Python or update the current version of Python.

Step 1 Open The Powershell as Administrator

To install Chocolatey, you need to open PowerShell as Administrator.

Step 2: Install the Chocolatey Package Manager Command

Now, you can install the Chocolatey package manager using the following command.

Set-ExecutionPolicy Bypass -Scope Process -Force; [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; iex ((New-Object System.Net.WebClient).DownloadString(‘https://community.chocolatey.org/install.ps1’))

Step 3: Verify the Chocolatey Installation

Now, you need to check whether Chocolatey has been installed successfully. To check it, run the “ choco ” command.

It is installed successfully because it is showing version Chocolatey v1.2.0.

Step 4: Update Python with Chocolatey

With the help of the choco upgrade command, we can update our current Python version.

Step 5: Verify the Version

You can again check the latest installed Python version using the following command.

Note: The old version of Python will remain on your system. You can uninstall the old version from the control panel.

How To Upgrade Python on macOS?

You can download the latest version of Python for macOS from the official Python website, similar to what you did on windows OS to update Python version on your system. To check whether it is updated to the lasted version or not, follow the below-listed commands to check the Python version.

If you want to execute this new Python release with the python command instead of python3, install an alias in your $HOME directory’s bash profile file.

Open the terminal window and type the following commands:

$ cd $HOME
$ nano .bash_profile

Then, at the bottom, add this segment.

Python 3.9 version can be checked using the following command.

How to Update Python version on LINUX?

Users can use the below listed Linux commands to upgrade Python version on the Linux server:

ppa:deadsnakes/ppa can be added to the system’s Software Sources to upgrade the machine with unsupported packages from this untrusted PPA.

$ sudo add-apt-repository ppa:deadsnakes/ppa

This command is used to update the Python package.

$ sudo apt update
$ sudo apt install python3.9

Then, using the commands below, you can search the versions of your new and current Python installations:

This command will show you the following version of python installed in your system

Conclusion

We have seen how to update Python version on operating systems like Windows, Mac OS, and Linux. Follow the guide carefully to update your python software. We believe this guide fulfills your requirement though you can install the latest version successfully. Leave your comments below for your feedback and queries.

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What is the latest python version?

Python is a programming language with many features and libraries that can be used for various purposes. The latest version of Python is 3.11.0, which was released on Oct. 24, 2022. This version includes bug fixes and improvements to the standard library.

Master of word when it comes to technology, internet and privacy. I’m also your usual guy that always aims for the best result and takes a skateboard to work. If you need me, you will find me at the office’s Counter-Strike championships on Fridays or at a.yushkevych@monovm.com

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