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#!/usr/bin/env python3
from blessed import Terminal
term = Terminal()
fill = "█" * term.height * term.width
empty = " " * term.height * term.width
print(term.bold_red("Warning! Screen may blink rapidly!"))
print()
print("Press return to continue, 'q' to stop test")
term.inkey()
with term.fullscreen():
for step in range(300):
with term.synchronized_output():
print(term.home + empty, flush=True)
print(term.home + fill, flush=True)
print(term.home + f'step={step}')
if term.inkey(0.01) == 'q':
break
print(term.clear + "Test complete!")
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