set default python version mac
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Certainly! Setting the default Python version on a Mac involves using the update-alternatives command to manage symbolic links. Follow these steps to set the default Python version on your Mac:
Before setting the default Python version, it's a good idea to check the Python versions installed on your system. Open a terminal and enter the following command:
This will list the available Python versions on your Mac.
If you don't have Homebrew installed, you can install it by running the following command:
Use Homebrew to install pyenv, a Python version management tool. Run the following commands:
Add the following lines to your shell profile configuration file (e.g., ~/.bash_profile, ~/.zshrc, or ~/.bashrc):
Then, restart your shell or run source ~/.your_shell_profile_file to apply the changes.
Now, use pyenv to install the Python versions you want. For example, to install Python 3.8.12 and Python 3.9.7, use the following commands:
Set the global Python version using the pyenv global command. For example, to set Python 3.9.7 as the default version, run:
Verify that the default Python version has been set by running:
This should display the version you set as the global version.
Sometimes, you might need to adjust your shell's PATH to ensure the correct Python version is used. You can add the following line to your shell profile configuration file:
Restart your shell or run source ~/.your_shell_profile_file after making changes.
Now you have successfully set the default Python version on your Mac using pyenv and Homebrew. You can use pyenv versions to list installed Python versions and switch between them as needed.
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