class Demo(object):
def __init__(self, root):
self.root = root
self.fade = Fade(256) #default 0-255
self.label = Label(root, text="text", fg="#000000", font=("Arial", 54))
self.label.pack()
Button(root, text="Reset", command=self.reset).pack()
self.fade_more()
def reset(self):
self.fade.reset()
self.fade_more()
def fade_more(self):
try:
current = self.fade.next()
self.label.config(fg=dec2hex(current)) #configures text to next color
self.label.pack()
root.after(100, self.fade_more)
except StopIteration:
return
def test_reset(): f = Fade(10) for each in f: pass f.reset() assert f.index == 0