> why is obtaining Python separately better than using a Python provided by the image?
I mostly work in a different domain than webdev, but feel strongly about trying to decouple base technologies of your OS and your application as much as possible.
It's one thing if you are using a Linux image and choose to grab their Python package and other if their boot system is built around the specific version of Python that ships with the OS. The goal being if you later need to update Python or the OS they're not tethered together.
I mostly work in a different domain than webdev, but feel strongly about trying to decouple base technologies of your OS and your application as much as possible.
It's one thing if you are using a Linux image and choose to grab their Python package and other if their boot system is built around the specific version of Python that ships with the OS. The goal being if you later need to update Python or the OS they're not tethered together.