Error report message

5

The error was trying to set fewer axes than there currently are; it gives the popup instead of printing when running it from a button:

# run with a font having a few axes
from vanilla import Window, Button
class Test:
	def __init__(self):
		W, H = 100, 100
		self.w = Window((W, H))
		self.w.buttom = Button((10, 10, -10, -10), 'Run', callback = self.run)
		self.w.open()

	def run( self, sender ):
		for master in Font.masters:
			newAxes = master.axes[0:-1]
			master.axes = newAxes

Test()