sorted with and without key function.ipynb

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    "sortme = { 'aaathing': 2, 'bbbthhat': 1, 'cccwhat': 5, 'aBbother': 4}\n"
   ]
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       "['aaathing', 'aBbother', 'bbbthhat', 'cccwhat']"
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     "execution_count": 2,
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    "sorted(sortme, key=lambda values: [str(val).lower() for val in values])"
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       "['aBbother', 'aaathing', 'bbbthhat', 'cccwhat']"
      ]
     },
     "execution_count": 3,
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   "source": [
    "sorted(sortme)"
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