How do you actually use PyPNGImage?

[Pshemas]

Sorry for a noob question, but I'm having trouble using this lib.
By default if I do:

somedata = "...curses..."
another_attempt = qrcode.make(somedata)

I get 'qrcode.image.pure.PyPNGImage object. And I fail to do anything with it. If I try to use it as a TkInter labe I get an error:

image "<qrcode.image.pure.PyPNGImage object at 0x7f5c6a78f100>" doesn't exist

If I try to convert with someimg = tk.PhotoImage(data=another_attempt) I get an error too.
So my question is how do you actually make types match and make result useful? Is it doable without saving?