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   "source": [
    "# 16-32 · Отладка и качество GUI\n",
    "\n",
    "Практика к разделу [«Отладка интерфейса и качество GUI»](../../site/chapters/glava-16/16-32-debugging-i-kachestvo.html)."
   ]
  },
  {
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   "source": [
    "## Цель\n",
    "\n",
    "Распознавать, какие действия безопасны внутри GUI-callback."
   ]
  },
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     "text": [
      "False True False\n"
     ]
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   "source": [
    "def is_safe_for_gui_callback(action):\n",
    "    unsafe_actions = {\"time.sleep\", \"while_true_poll\", \"huge_synchronous_computation\"}\n",
    "    return action not in unsafe_actions\n",
    "\n",
    "check_sleep = is_safe_for_gui_callback(\"time.sleep\")\n",
    "check_after = is_safe_for_gui_callback(\"root.after\")\n",
    "check_while = is_safe_for_gui_callback(\"while_true_poll\")\n",
    "print(check_sleep, check_after, check_while)"
   ]
  }
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