Untitled.ipynb

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   "source": "# Polite error messages in IPython\n\nIPython allows registering a custom exception hook,\nwhich lets you do whatever you want when an error occurs.\n\nIf you want to hide the scary details of tracebacks for a bit,\nyou might use this.\n\nHere is an example showing a specific error message for NameErrors,\nand showing just the error message instead of a traceback for the rest.\n\nCareful! Eliminating the traceback can make it a lot harder to find where the mistake is."
  },
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   "source": "def polite_errors(ip, etype, evalue, tb, tb_offset=None):\n    if etype is NameError:\n        print(\"Oops! looks like {}.\"\n              \" Did you forget something or make a typo?\".format(evalue))\n    # elif other special errors you can make nice\n    else:\n        # fallback on just error type and message (no traceback)\n        print(\"%s: %s\" % (etype.__name__, evalue))\n    \nget_ipython().set_custom_exc((Exception,), polite_errors)\n",
   "execution_count": 1,
   "outputs": []
  },
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   "metadata": {
    "trusted": true
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   "cell_type": "code",
   "source": "undefined",
   "execution_count": 2,
   "outputs": [
    {
     "output_type": "stream",
     "text": "Oops! looks like name 'undefined' is not defined. Did you forget something or make a typo?\n",
     "name": "stdout"
    }
   ]
  },
  {
   "metadata": {
    "trusted": true
   },
   "cell_type": "code",
   "source": "{}['a']",
   "execution_count": 3,
   "outputs": [
    {
     "output_type": "stream",
     "text": "KeyError: 'a'\n",
     "name": "stdout"
    }
   ]
  },
  {
   "metadata": {
    "trusted": true
   },
   "cell_type": "code",
   "source": "1/0",
   "execution_count": 4,
   "outputs": [
    {
     "output_type": "stream",
     "text": "ZeroDivisionError: division by zero\n",
     "name": "stdout"
    }
   ]
  },
  {
   "metadata": {
    "trusted": true
   },
   "cell_type": "code",
   "source": "def foo()\n    pass",
   "execution_count": 4,
   "outputs": [
    {
     "output_type": "stream",
     "text": "SyntaxError: invalid syntax (<ipython-input-5-af92d274abf2>, line 1)\n",
     "name": "stdout"
    }
   ]
  }
 ],
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