Linux uninstall python 3

Ubuntu, how do you remove all Python 3 but not 2

I have recently get hold of a RackSpace Ubuntu server and it has pythons all over the place: iPython in 3.5, Pandas in 3.4 &2.7, modules I need like pyodbc etc. are only in 2,7 Therefore, I am keen to clean up the box and, as a 2.7 users, keep everything in 2.7. So the key question is, is there a way to remove both 3.4 and 3.5 efficiently at the same time while keeping Python 2.7?

6 Answers 6

Removing Python 3 was the worst thing I did since I recently moved to the world of Linux. It removed Firefox, my launcher and, as I read while trying to fix my problem, it may also remove your desktop and terminal! Finally fixed after a long daytime nightmare. Just don’t remove Python 3. Keep it there!

If that happens to you, here is the fix:

@RohitNair Did you try the suggested fixes linked on my post (from askubuntu)? I tried them and they worked with me. If you don’t have a terminal (most probably), then press Ctrl+Alt+F1 to get a virtual console and get started

So, if a language version is removed, all hell breaks loose at the OS level? Not exactly an advertisement for Ubuntu.

EDIT: As pointed out in recent comments, this solution may BREAK your system.

You most likely don’t want to remove python3.

Please refer to the other answers for possible solutions.

Outdated answer (not recommended)

This stupid command removed many core packages from my system, and left it in a broken state, please remove this reply.

DO NOT run this command . python3 is used in many system utils and applications. RUNNING this command will destroy your system.

So I worked out at the end that you cannot uninstall 3.4 as it is default on Ubuntu.

All I did was simply remove Jupyter and then alias python=python2.7 and install all packages on Python 2.7 again.

Arguably, I can install virtualenv but me and my colleagues are only using 2.7. I am just going to be lazy in this case 🙂

You may want to dig deeper. Ubuntu still defaults to Python 2.7, although they are moving towards Python 3: wiki.ubuntu.com/Python/3 This could indicate a different issue with your setup.

First of all, don’t try the following command as suggested by Germain above.

 `sudo apt-get remove 'python3.*'` 

In Ubuntu, many software depends upon Python3 so if you will execute this command it will remove all of them as it happened with me. I found following answer useful to recover it.

If you want to use different python versions for different projects then create virtual environments it will be very useful. refer to the following link to create virtual environments.

Creating Virtual Environment also helps in using Tensorflow and Keras in Jupyter Notebook.

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How to Uninstall Python

We may want to remove Python in our Linux or Windows systems for different reasons – conflicting packages and the need for a given Python version are some top reasons. Unlike in Windows, Python is a core program in most Linux distributions. In this case, uninstalling Python without utmost care may cause your Linux system to break. This article focuses on how we can safely remove Python from Windows and Linux systems.

How to Uninstall Python in Linux

Most Linux distros come with Python installed. In fact, in most cases, the default Python coming with the operating system is a core package for the system such that if it is removed, the graphical display manager breaks down, among other awful things. Other Python version(s) can also be installed alongside Linux-inbuilt Python (we will discuss how to do this later). We can safely remove the Python built from the source, but removing the Python that came with the distribution is not recommended.

To uninstall Python installed from the source, follow these steps:

Step A. First of all, check all the Python versions installed using the whereis command in Linux

From Figure 1, what we are after are the binaries. They are located at bin/or local/bin. The inbuilt Python is in bin/, whereas the Python built from the source is mainly installed at the local/bin. In our case, we have Python3.9 (inbuilt – we don’t want to uninstall this) and Python3.6 located in local/bin directory, and we can safely remove it.

The following list can fully explain the Linux directories we are interested in:

• /bin – binary or executable programs.
• /lib – it contains kernel modules and a shared library.
• /usr – user-related programs.
• The /usr/local directory is where locally compiled applications are installed by default, preventing them from mucking up the rest of the system.
• /etc – system configuration files.

Misc A: Why it is not recommended to uninstall Python at /usr/bin

Many programs in most Linux distributions depend on pre-installed Python. You can identify the default Python by running python on the terminal. You can also find it by using which command.

If we take a closer look at the long listing of /usr/bin you will realize that Python and its dependencies are linked to other programs.

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Uninstall Python in Ubuntu 22.04

Python is one of the most popular programming languages. It’s an interpreted general-purpose programming language with an emphasis on simplicity. Because of its versatility, Python is used for various purposes: web development, data analysis, artificial intelligence, and much more.

In this guide, we will have a look at uninstalling Python in Ubuntu 22.04.

Prerequisites

To follow this guide, you need the following components:

• A properly-configured Linux system. Learn more about setting up an Ubuntu virtual machine on VirtualBox.
• Access to a non-root user with sudo privilege. Check out the article on using sudoers to manage the sudo privilege.

Python Major Releases

As of now, the two major versions of Python are:

Python 2 received its last update (v2.7.18) on April 20, 2020. It’s been mostly phased out in favor of Python 3. This move, however, caused a major uproar in the community. Python 2 was so popular that the EOL had to be pushed multiple times into the future.

Although deprecated, you may still come across some Python 2 installations for compatibility reasons. By default, Ubuntu comes with installed Python 3.

Method 1: Removing Python Using APT

Step 1: Finding the Installed Python Package

Run the following commands:

• We ask the Python executable to print its version.
• Ubuntu 22.04 comes with pre-installed Python 3. So, the first command returns a version number.
• Ubuntu 22.04 doesn’t come with pre-installed Python 2. So, the expected result is an error. However, if the command returns a version number, Python 2 is later installed.

On Debian/Ubuntu, the core Python packages are as follows:

Step 2: Uninstalling Python

Now that we know what Python version is currently installed on the system, we can start to work on uninstalling them.

To remove Python 2, run the following command:

To remove Python 3, run the following command:

Optional: Remove All Python Packages

Removing all the Python-related packages is generally not recommended since various parts of the system depend on them. If you wish to proceed, ensure that you backed up all your important data.

To remove all the Python packages from the system, run the following command:

• The APT package manager looks for packages that match the given regular expression (*python*). The matching packages are marked for removal.
• APT also marks the dependencies of those packages for removal.

Method 2: Removing Python from the Source

If Python was compiled and installed from its source code, APT won’t be able to recognize the installation. In that case, the uninstallation process will be different.

Assuming you still have the source directory which contains the compiled Python package, run the following commands:

If you removed the source directory, you could try removing the installed libraries and binaries manually:

Note that this is meant to be the last resort. It may lead to corrupted and broken configurations throughout the system.

Method 3: Removing PyPy

PyPy aims to be a replacement for CPython (the default Python implementation). It’s built with RPython which was simultaneously developed with it. The key advantage to using PyPy other than CPython is performance. Although it’s an implementation of Python, certain differences can impact compatibility. Learn more about PyPy.

Similar to the classic Python, PyPy also has two major releases:

To install PyPy, run the following commands:

Similarly, to uninstall PyPy, run the following commands:

Bonus: Removing PIP

PIP is the de-facto standard package manager for Python packages/modules. By default, it’s configured to use the Python Package Index as the source of packages. Starting from Python 3 (v3.4 and later), PIP comes pre-installed with Python 3. The term “PIP” is a recursive acronym for “PIP Installs Packages”. Learn more about PIP.

Similar to the Python major releases, PIP has unique versions for both Python 2 (python-pip) and Python 3 (python3-pip).

If you removed all the Python packages, PIP is also uninstalled by default. However, if you desire to specifically uninstall PIP, run the following commands:

Conclusion

We demonstrated the multiple ways of removing Python from Ubuntu 22.04. We demonstrated uninstalling both CPython and PyPy from the system using APT. We also discussed uninstalling Python if it is installed from the source code.

Need to reinstall Python? Check out this guide on installing Python on Ubuntu 22.04. Interested in starting your journey with Python? The following guide features 30 example scripts to get started. The Python sub-category also contains numerous guides on various aspects of Python programming.

About the author

Sidratul Muntaha

Student of CSE. I love Linux and playing with tech and gadgets. I use both Ubuntu and Linux Mint.

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Uninstall Python in Ubuntu

1. Check if Python Installed in Your System
2. Ways to Remove/Uninstall Python in Ubuntu

This article demonstrates how to delete or uninstall Python from Ubuntu.

Check if Python Installed in Your System

Open the Terminal using Ctrl + Alt + T .

After opening the terminal, check whether your system has python installed or not by using the command python3 —version .

If the command replies with the specific version of python, then leave it because you have already installed python on your pc/desktop.

If the command replies with Command not found , then to install python, write the command sudo apt install python3 .

There are many ways for its uninstallation depending upon a user’s needs. Different commands in the terminal do different tasks.

If there is only a need to delete specific dependencies related to a specific module of python or if there is a need to delete all the dependencies or to remove the Python3 package.

Depending upon the specific needs and requirements, the user can run the commands in the terminal for specific actions.

Ways to Remove/Uninstall Python in Ubuntu

Uninstall/Delete a Specific Version

Suppose a user wants to delete a specific version of Python installed on the Ubuntu machine. Run the below command and enter your user password. The version of Python will be removed from the machine.

sudo apt purge python-minimal 

Remove Only the python3 Package

If a user wants to remove the specific package of Python, i.e., python 3.5 , run the below command and select and remove the python3 packages.

sudo apt-get remove python3.5 

Remove Packages With Their Dependencies

Suppose you want to remove a package and all the dependencies related to that package, run the below-mentioned command, enter your ubuntu password, and the package will be removed along with its dependencies.

sudo apt-get remove –auto-remove python3.5 

Remove Settings, Configs, Datafiles Collectively

Suppose a user wants to remove all the configurations and settings or data files related to a python package. In that case, he should mention the below command in the terminal and enter the machine’s password to continue.

sudo apt-get purge python3.5 

Remove Configs, Data Files, and Dependencies of python3.5

If a user wants to collectively remove any Python package’s configuration, files, and dependencies, then the user must use the below command.

sudo apt-get purge –auto-remove python 

sudo apt-get purge –auto-remove python3.5 

Hello! I am Salman Bin Mehmood(Baum), a software developer and I help organizations, address complex problems. My expertise lies within back-end, data science and machine learning. I am a lifelong learner, currently working on metaverse, and enrolled in a course building an AI application with python. I love solving problems and developing bug-free software for people. I write content related to python and hot Technologies.

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