If that command doesn’t work, try with python3 command instead: $ python3 -version $ – requires given linux commands to be executed as a regular non-privileged user # – requires given linux commands to be executed with root privileges either directly as a root user or by use of sudo command Privileged access to your Linux system as root or via the sudo command. Requirements, Conventions or Software Version Used How to change from default to alternative Python version on Debian Linux Software Requirements and Linux Command Line Conventions Category
In this tutorial, you will see how to install multiple versions of python, and change the python version on Debian using the update-alternatives python command. If you have any questions or feedback, leave a comment below.Your Debian Linux installation may include multiple python versions and thus also include multiple python binary executables, and it’s possible to change python version that the system is using. This tutorial shows you multiple ways to install Python 3.9 on Debian 10 system.
Verify the installation by typing: python3.9 -version Python 3.9.0+ Conclusion # Python 3.9 has been installed from source and ready to be used. Once the build process is complete, install the Python binaries by typing: sudo make altinstall You would run the following command to start the build process for python: make -j 12įor faster build time, modify the -j to correspond to the number of cores in your processor. The -enable-optimizations option optimizes the Python binary by running multiple tests. It will do few checks that required dependencies are installed. Navigate to the Python source directory and execute the configure script. Once the download is finished, extract the tarball: tar -xf Python-3.9.0.tgz Step 3 – Configure script # Sudo apt update sudo apt install build-essential zlib1g-dev libncurses5-dev libgdbm-dev libnss3-dev libssl-dev libreadline-dev libffi-dev libsqlite3-dev wget libbz2-dev Step 2 – Download source code #Īfter that download the latest source code from Python download page using wget: wget
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