* Update python.md
this makes it clear how to alter `attributes` by using `packageOverrides`
* Update python.md
* Update python.md
* Update python.md
* Update python.md
* Update python.md
* Update python.md
If you are using the `bepasty-server` package somewhere, for example in `systemPackages` or indirectly from `services.bepasty`, then a `nixos-rebuild switch` will rebuild the system but with the `bepasty-server` package using a different `src` attribute. This way one can modify `python` based software/libraries easily. Using `self` and `super` one can also alter dependencies (`buildInputs`) between the old state (`self`) and new state (`super`).