Hola! Question Kritters 
I’m new to Krita and… there’s no way to erase a part of a vector drawing? There’s nothing out there that touches this topic, not even the Krita manual. At least if it’s impossible it should say it on the manual!
I’m not talking about the undo button, I’m looking for a simple way to erase a part of a vector drawing that I don’t need.
Thank you 
The simplest way to get an ‘end result’ is to convert the vector layer (or a copy of it) to a paint layer and then use an eraser on the resulting raster image.
The next simplest way is to put a white filled vector shape over the part of the vector drawing you want to ‘erase’ so that it gets masked off. This assumes you have a white background layer (or use whatever colour, same as the background).
The more complicated and better way is to convert your vector object to a Path and use the path editing tool to break lines and reposition the resulting end-points.
You can’t ‘erase’ part of a vector object unless you turn it into a new vector object that has the appearance you want.
Edit:Add …and vector subtraction - see below 
Well, the way vectors and vector shapes work you can not simply erase something like you would with a raster image. What you can do is use the shape editing tool and delete the vertices you don’t need or you use logical vector operations to cut out forms from other forms.
For example, when you want to “erase” a circle from a square, you make two shapes, select the one you want to erase from, than your other shape and use Substract.
Thank you! 
Krita does Boolean operations? wwwooooooooooooowwwww keanu voice
I just learnt something, thanks @Takiro
I just recently learned they’re doing a new Bill and Ted 
Krita’s vector tools are still a bit hard to use and unintuive in some places but yeah the basics are there 
There is no eraser for Vectors yet. You can use transparency masks too but it affects whole layer But as @Takiro said you can use boolean operations or you can convert it to raster layer and erase
