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There are three effective methods you can use to downgrade the version of Python installed on your device: virtualenvthe downgrade method, Control Panelthe downgrade method, and Anacondathe downgrade method. In our tutorial, we will provide you with the details and sample code you need to downgrade your Python version.

virtualenvDowngrade Python 3.9 to 3.8 using the module

virtualenvMethods are used to create and manage different virtual environments for Python on the device; this helps solve dependency, version, and permission issues between projects.

Let's say we are working on a project that requires a different version of Python to run. In this case, we can use virtualenvthe module to create a new virtual environment for that particular project and install the required Python version in that virtual environment. To create a virtual environment, we first have to install vritualenvthe module. Here is the command to install this module:

pip install virtualenv

Now, we can virtualenvcreate our virtual environment using the module. Given below is the command to create a new virtual environment.

virtualenv \path\to\env -p \path\to\python_install.exe

Here, \path\to\envis the path to the virtual environment, and \path\to\python_install.exeis the path to the required version of Python that has been installed. For this command to work, we must first install the required version of Python on our device.

After installation, you just need to activate our virtual environment. You can do this by executing the following command:

\path\to\env\Scripts\activate.bat

Here, \path\to\envis the path to the virtual environment.

Downgrade Python 3.9 to 3.8 using Anaconda

We can also virtualenvuse Anaconda to downgrade Python version just like . First, you need to install Anaconda on your device. After installation, we can use condathe package manager to create a new virtual environment for our project. Given below is condathe command to create a virtual environment using :

conda create -n downgrade python=3.8 anaconda

This command creates a new virtual environment called for our project using Python 3.8 降级. The next step is to activate our virtual environment. Given below is condathe command to activate the virtual environment using .

activate downgrade

The command above activates 降级the virtual environment. Now, we can install all the packages we need for our particular project.

This method virtualenvis very similar to the . However, condathe .py method is simpler and easier to use than the previous one. We don't even need to manually install another Python version; condathe package manager will automatically install it for us.

Downgrade Python 3.9 to 3.8 using the Control Panel

This method is applicable only to devices running Windows operating system. This method involves manually uninstalling the previously existing Python version and then reinstalling the required version.

We can uninstall Python by performing the following steps: Go to Control Panel -> Uninstall a program -> Search for Python -> Right Click on the Result -> Select Uninstall.

Now that the previous version of Python is uninstalled from your device, you can install the desired version of the software by going to the official Python download page.

This method is the least preferred among the methods discussed in this tutorial. This is because this method is available only on Windows and should only be used when we no longer need the previous version of Python.

The best way to downgrade Python or use a different Python version is to use Anaconda. The commands to use Anaconda are very simple and it automates most of the process for us.