How Can I Run Different Python Versions on Windows?

Running Multiple Python Versions on Windows

When working with multiple Python versions on your Windows machine, you may encounter the need to specify which version to use for different projects. Here's a step-by-step explanation on how to achieve this:

Under Windows, running a specific Python version is as simple as invoking its corresponding executable. When you type "python" into the command line, Windows searches the PATH environment variable for an executable with that name. If multiple directories containing Python executables exist in the PATH, Windows will run the first matching executable.

To run a specific Python version, explicitly call its executable. For instance, to launch Python 2.6, navigate to its installation directory (e.g., c:python2.6) and execute "python.exe". Alternatively, to run Python 2.5, navigate to its directory and run "python.exe".

Another option is to create shortcuts to each Python executable, naming them differently (e.g., "python25" and "python26"). By running these shortcuts from the command line, you can easily specify which version to use.

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