Change python3.10 to your installed Python version in the command. Using pyenv makes it easy to install and switch between multiple versions of Python on a Linux system. If you have never used venv, you should first install its dependencies on your computer with the following command. Venv is the recommended way to create a virtual environment in Python and it comes preinstalled. Therefore, it is advisable to use a virtual environment for your Python projects. If you don’t use virtual environments, you don’t have any control on the versions of the packages you have used in your project, which is problematic when you try to run your software on a different machine. easy user management, multiple Python and R versions with core packages installed. Think of a virtual environment as an isolated room that has minimal dependencies. It’s an isolated Python environment that has its own tools and libraries independent of the main setup. This is where a virtual environment comes in handy. As Linux comes with a preinstalled version of Python and uses different packages to run the operating system, manually installed packages in the global scope can disrupt its functioning. If you use the default package installer, pip, or pip3 to install Python libraries and packages, it will install the packages globally. Python is not good at managing dependencies. Pycharm can be configured with this venv as simply as just pointing to it.Sudo update-alternatives -config python Manage Python Projects With Virtual Environments To deactivate (though you don't really have to) - you can just type deactivate in the terminal. Now you can do normal python operations as long within this venv and it'll all target 3.6 64 bit (or any other version you choose to build the venv with). Now whenever you need to do any python commands, you no longer need to do py -version, you can just do python and even use pip - BUT before that, you need to activate the venv > & '.\name_of_venv\Scripts\Activate.ps1' This will make a venv named of name_of_venv in your project directory and the python version will be 3.6 64 bit. To make a venv, go to your project directory (preferably) and do- > py -3.6-64 -m venv name_of_venv To remove Spyder previous settings you need to: 1) close Spyder, 2) open a terminal and run: rm -Rf /.spyder2, and 3) restart Spyder again. If you are a Fedora user, you might want to read about multiple Python versions. Tashkinov at 15:26 Add a comment 1 Answer Sorted by: 2 Python 3.8 and 3.9 are available in the default repositories just install the python38 or python39 package. For example installing the python3.9 package on Fedora 32 to get Python 3.9. Now, you'll also want to use a virtual env and point pycharm to the venv. What is the proper way to manage multiple python versions Artem S. The recommended way of having multiple Python versions installed is to install each from source - they will happily coexist together. It can install multiple Python versions, specify the version. Note that on some Linux distributions including Ubuntu and Fedora the pip command is meant for Python 2, while the pip3 command is meant for Python 3. The above will launch the 64 bit version of python 3.6 (if installed). Install Pyenv: Pyenv is a program thats used for Python version management on macOS and Linux. command -v pip To install pip, follow the official pip installation guide - this will automatically install the latest version of setuptools. virtualenv -p python2.7 env source env/bin/activate python -version prints «Python 2.7.3» pip install pyopencv. It displays all the python versions and installs the. It downloads, installs, and configures Pyenv. If you've the py launcher you can simply launch your desired python version using- py -3.6-64 In CMake GUI these flags (most of them) are hidden unless you mark the 'Advanced' tick. This article installs and manages multiple python versions in Windows Subsystem for Linux 2. This makes it easy to launch whichever python version you want through the commandline, with no need to rely on PATH nonsense. You can install any number of python versions on your windows, though please also install the py launcher that it comes with. The preferred way to use python virtual environments now is venv.
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