How Can I Create Python Virtual Environments for Specific Python Versions Using Virtualenv?

Creating Virtual Environments for Specific Python Versions with Virtualenv

In Python environments, it's often desirable to isolate projects into their own self-contained environments. Virtualenv is a tool that allows developers to create virtual environments, enabling them to run different versions of Python and manage dependencies separately for each project.

To create a virtual environment for a specific version of Python using virtualenv, follow these steps:

1. Ensure you have virtualenv installed. You can install it using pip:

pip install virtualenv

2. Use the --python (or short -p) option when creating the virtual environment instance. This option specifies the Python executable you wish to use. For example, to create a virtual environment for Python 2.6, run:

virtualenv --python="/usr/bin/python2.6" "/path/to/new/virtualenv/"

Note: For Python 3.3 and above, refer to the answer provided by Aelfinn below.

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