How to update python wsl

Install Python 3.9.1 on WSL

This article summarizes the steps to install Python 3.9.1 on Windows Subsystem for Linux Debian distro. You can also apply them to other similar distros.

Installation steps

Run the following commands in your WSL terminal.

2) Install dependent libraries

sudo apt install build-essential zlib1g-dev libncurses5-dev libgdbm-dev libnss3-dev libssl-dev libsqlite3-dev libreadline-dev libffi-dev curl libbz2-dev

3) Download Python binary package

wget https://www.python.org/ftp/python/3.9.1/Python-3.9.1.tgz

5) Execute configure script

cd Python-3.9.1 
./configure --enable-optimizations

Verify the installation

Run the following command to install Python 3.9:

$ python3.9
Python 3.9.1 (default, Jan 8 2022, 14:44:10)
[GCC 6.3.0 20170516] on linux
Type "help", "copyright", "credits" or "license" for more information.

Make Python 3.9 the default

If you want to make Python 3.9 the default python program, you can follow these steps:

1) Change ~/.bashrc file to add the following line:

alias python='/usr/local/bin/python3.9'

2) And then run the following command to make it effective:

You can verify it using python command directly:

python --version 
Python 3.9.1

References

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Ah, then this has nothing to do with WSL, then. It’s «how to install a python version higher than that bundled with the distro». This would happen in regular Debian as well.

person Raymond access_time 9 months ago
Re: Install Python 3.9.1 on WSL

Hi, it is because the package is not available directly at the time when this article was published.

Hi, it is because the package is not available directly at the time when this article was published.

person Glenn access_time 9 months ago
Re: Install Python 3.9.1 on WSL

I don’t understand why you would build python from source.

glenn@RainbowDream:~$ sudo apt-get install python3 Reading package lists. Done Building dependency tree. Done The following additional packages will be installed: ca-certificates libexpat1 libmpdec3 libpython3-stdlib libpython3.9-minimal libpython3.9-stdlib libsqlite3-0 media-types openssl python3-minimal python3.9 python3.9-minimal Suggested packages: python3-doc python3-tk python3-venv python3.9-venv python3.9-doc binutils binfmt-support The following NEW packages will be installed: ca-certificates libexpat1 libmpdec3 libpython3-stdlib libpython3.9-minimal libpython3.9-stdlib libsqlite3-0 media-types openssl python3 python3-minimal python3.9 python3.9-minimal 0 upgraded, 13 newly installed, 0 to remove and 7 not upgraded. Need to get 7,027 kB of archives. After this operation, 23.8 MB of additional disk space will be used. Do you want to continue? [Y/n] y

followed by the download and install and to prove the point:

glenn@RainbowDream:~$ python3 Python 3.9.2 (default, Feb 28 2021, 17:03:44) [GCC 10.2.1 20210110] on linux Type «help», «copyright», «credits» or «license» for more information.

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Upgrade Python to latest version (3.10) on Ubuntu Linux

Linux systems come with Python install by default, but, they are usually not the latest. Python also cannot be updated by a typical apt upgrade command as well.

To check the version of Python installed on your system run

python keyword is used for Python 2.x versions which has been deprecated

1. Update Python to the latest version
2. Fix pip & other Python related issues
3. While doing the above two, ensure your Ubuntu which is heavily dependent on Python does not break

Updating Python to the latest version

Ubuntu’s default repositories do not contain the latest version of Python, but an open source repository named deadsnakes does.

Python3.10 is not officially available on Ubuntu 20.04, ensure you backup your system before upgrading.

Step 1: Check if Python3.10 is available for install

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

Check if Python 3.10 is available by running

This will produce the below result, if you see python3.10 it means you can install it

Step 2: Install Python 3.10

Now you can install Python 3.10 by running

sudo apt install python3.10 

Now though Python 3.10 is installed, if you check the version of your python by running python3 —version you will still see an older version. This is because you have two versions of Python installed and you need to choose Python 3.10 as the default.

Step 3: Set Python 3.10 as default

Steps beyond here are tested on Ubuntu 20.04 in VM & WSL2, but are experimental , proceed at your own risk.

Changing the default alternatives for Python will break your Gnome terminal. To avoid this, you need to edit the gnome-terminal configuration file.

Open the terminal and run:

sudo nano /usr/bin/gnome-terminal 

In first line, change #!/usr/bin/python3 to #!/usr/bin/python3.8 . Press Ctrl +X followed by enter to save and exit.

Then save and close the file.

Next, update the default Python by adding both versions to an alternatives by running the below

sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.9 Now run

sudo update-alternatives --config python3 

Choose the selection corresponding to Python3.10 (if not selected by default).

Now run python3 —version again and you should see the latest Python as the output.

Fix pip and disutils errors

Installing the new version of Python will break pip as the distutils for Python3.10 is not installed yet.

Fix Python3-apt

Running pip in terminal will not work, as the current pip is not compatible with Python3.10 and python3-apt will be broken, that will generate an error like

Traceback (most recent call last): File "/usr/lib/command-not-found", line 28, in <module> from CommandNotFound import CommandNotFound File "/usr/lib/python3/dist-packages/CommandNotFound/CommandNotFound.py", line 19, in <module> from CommandNotFound.db.db import SqliteDatabase File "/usr/lib/python3/dist-packages/CommandNotFound/db/db.py", line 5, in <module> import apt_pkg ModuleNotFoundError: No module named 'apt_pkg' 

To fix this first remove the current version of python3-apt by running

sudo apt remove --purge python3-apt 

DO NOT RUN sudo apt autoremove as it will remove several packages that are required. This may break your system if you’re using GUI, if you’re on WSL2 you can proceed.

Finally, reinstall python3-apt by running

sudo apt install python3-apt 

Install pip & distutils

Running pip will still throw an error pip: command not found . We need to install the latest version of pip compatible with Python 3.10.

Also, if try to manually install the latest version of pip, it will throw an error like

ImportError: cannot import name 'sysconfig' from 'distutils' (/usr/lib/python3.10/distutils/__init__.py) 

Or you might also see an error stating No module named ‘distutils.util’ . This is because the distutils module is not installed yet, to install run the below command

sudo apt install python3.10-distutils 

Now you can install pip by running

curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py sudo python3.10 get-pip.py 

If you get an error like bash: curl: command not found then you need to install curl first by running sudo apt install curl

Now you can run pip and you should see the output of pip —version

Fix pip-env errors when using venv

When you try to create a new virtual environment using python -m venv env , you may into the following error.

Error: Command -Imensurepip--upgrade--default-pipYou can fix this by reinstalling venv by running

sudo apt install python3.10-venv 

All should be done now. It is complicated, but this is how you update Python to latest version.

Extra

If you have oh-my-zsh installed, you can avoid typing out python3 by running

Now you can run your files with py or python .

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Как установить и управлять несколькими версиями Python в WSL2

Эта статья является частью мини-серии, которая поможет читателям настроить все необходимое, чтобы начать изучать искусственный интеллект, машинное обучение, глубокое обучение и/или науку о данных. Он включает статьи с инструкциями по копированию и вставке кода и снимками экрана, чтобы помочь читателям получить результат как можно скорее. Он также включает статьи, содержащие инструкции с пояснениями и снимки экрана, чтобы помочь читателям узнать, что происходит.

Linux: 01. Install and Manage Multiple Python Versions 02. Install the NVIDIA CUDA Driver, Toolkit, cuDNN, and TensorRT 03. Install the Jupyter Notebook Server 04. Install Virtual Environments in Jupyter Notebook 05. Install the Python Environment for AI and Machine Learning WSL2: 01. Install Windows Subsystem for Linux 2 02. Install and Manage Multiple Python Versions 03. Install the NVIDIA CUDA Driver, Toolkit, cuDNN, and TensorRT 04. Install the Jupyter Notebook Server 05. Install Virtual Environments in Jupyter Notebook 06. Install the Python Environment for AI and Machine Learning 07. Install Ubuntu Desktop With a Graphical User Interface (Bonus) Windows 10: 01. Install and Manage Multiple Python Versions 02. Install the NVIDIA CUDA Driver, Toolkit, cuDNN, and TensorRT 03. Install the Jupyter Notebook Server 04. Install Virtual Environments in Jupyter Notebook 05. Install the Python Environment for AI and Machine Learning Mac: 01. Install and Manage Multiple Python Versions 02. Install the Jupyter Notebook Server 03. Install Virtual Environments in Jupyter Notebook 04. Install the Python Environment for AI and Machine Learning

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