fix on_key_up signature to have correct number of params

Tenrec-Builders / pi-scan

Pi Scan is a simple, robust capture appliance for book scanners. It runs on a Raspberry Pi 2.

BSD 2-Clause "Simplified" License

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Closed meelash closed 6 years ago

meelash commented 6 years ago

I was getting an error while running on macos when pressing any keys:

TypeError: +on_key_up() takes exactly 6 arguments (4 given)

I don't understand why the signature doesn't match https://kivy.org/docs/api-kivy.core.window.html?highlight=request_keyboard#kivy.core.window.WindowBase.request_keyboard, but this is the correct number of arguments to fix that error, and I think they are labeled correctly...