Without going into too much detail on academic source referencing because this is a just a blog, I think it is fair to say that Python is at least one of the most commonly used programming languages in scientific application development. Python is great in that is is easy to learn, is very popular and
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Use PyMOL legally without license (open source)
This will allow you to run PyMOL without an aqcuired license which you certainly would need if you were to use the compiled binaries provided from the PyMOL website. This is just a very simple guide providing a list of the packages you need to install, and showing how to run the scripts you need