why does it need 6 extra dependencies? surely this could be a stand alone? i mean, why do i need petroleum handling for earlier access to trains??

I have removed pyalternative but the petroleum can't be reduced as it add many features about rails. It would be a heavy work to make this mod only for separated early py-mods and I don't have the plan recently.
I hope my response can be helpful for you.

it is. and thank you for respponding (and getting that i wasn't being snarky, but really wanted to know)

small qstion when are the py trains you guys using ofr py mod
being a standalone aswhell i like the red black colored 1
becausse i love trains i whould love to see them as a stand alone

1. if you want a separate early train mod , you can search for early-train, and it has already be made
2. if you want a red/black colored train, you can adjust the color of the trains in the top right part of the train menu.

I hope my response will help you.