Programming_Assingment12.ipynb

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   "cell_type": "code",
   "execution_count": 9,
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     "data": {
      "text/plain": [
       "{'v1', 'v2'}"
      ]
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   "source": [
    "# 1. Write a Python program to Extract Unique values dictionary values?\n",
    "dict1 = {'k1':'v1', 'k2': 'v2', 'k3': 'v1'}\n",
    "set(dict1.values())"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "9"
      ]
     },
     "execution_count": 14,
     "metadata": {},
     "output_type": "execute_result"
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   ],
   "source": [
    "# 2. Write a Python program to find the sum of all items in a dictionary?\n",
    "dict2= {'k4':1, 'k5': 3, 'k6': 5}\n",
    "sum(dict2.values())"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{'k1': 'v1', 'k2': 'v2', 'k3': 'v1', 'k4': 1, 'k5': 3, 'k6': 5}\n"
     ]
    }
   ],
   "source": [
    "# 3. Write a Python program to Merging two Dictionaries?\n",
    "dict3 = {**dict1, **dict2}\n",
    "print(dict3)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{1: 'Jan', 2: 'Feb', 3: 'March'}\n"
     ]
    }
   ],
   "source": [
    "# 4. Write a Python program to convert key-values list to flat dictionary?\n",
    "month_dict = {\n",
    "    'month_nums': [1,2,3],\n",
    "    'month_names': ['Jan', 'Feb', 'March']\n",
    "}\n",
    "months = dict(zip(month_dict['month_nums'], month_dict['month_names']))\n",
    "print(months)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 27,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "OrderedDict([('n1', '1'), ('n2', 2)])\n",
      "OrderedDict([('n1', '1'), ('n2', 2), ('n3', 'first')])\n",
      "OrderedDict([('n3', 'first'), ('n1', '1'), ('n2', 2)])\n"
     ]
    }
   ],
   "source": [
    "# 5. Write a Python program to insertion at the beginning in OrderedDict?\n",
    "from collections import OrderedDict\n",
    "ord_dict = OrderedDict(n1= '1', n2= 2)\n",
    "print(ord_dict)\n",
    "ord_dict['n3'] = 'first'\n",
    "print(ord_dict)\n",
    "ord_dict.move_to_end('n3', last=False)\n",
    "print(ord_dict)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 30,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "The string is \n",
      "hello Arvind\n",
      "The input pattern is \n",
      "ar\n",
      "The order of character is incorrect\n"
     ]
    }
   ],
   "source": [
    "# 6. Write a Python program to check order of character in string using OrderedDict()?\n",
    "from collections import OrderedDict\n",
    "def validat_order(my_input, my_pattern):\n",
    "   my_dict = OrderedDict.fromkeys(my_input)\n",
    "   pattern_length = 0\n",
    "   for key,value in my_dict.items():\n",
    "      if (key == my_pattern[pattern_length]):\n",
    "         pattern_length = pattern_length + 1\n",
    "\n",
    "      if (pattern_length == (len(my_pattern))):\n",
    "         return 'The order of character is correct'\n",
    "\n",
    "   return 'The order of character is incorrect'\n",
    "\n",
    "my_input = 'hello Arvind'\n",
    "input_pattern = 'Ar'\n",
    "print(\"The string is \")\n",
    "print(my_input)\n",
    "print(\"The input pattern is \")\n",
    "print(input_pattern)\n",
    "print(validat_order(my_input,input_pattern))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 47,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "[('rajnish', 9), ('ravi', 10), ('sanjeev', 15), ('suraj', 32), ('yash', 2)]\n"
     ]
    }
   ],
   "source": [
    "# 7. Write a Python program to sort Python Dictionaries by Key or Value?\n",
    "# Sort key by\n",
    "name_dict = {'ravi': 10, 'rajnish': 9,\n",
    "        'sanjeev': 15, 'yash': 2, 'suraj': 32}\n",
    "print(sorted(name_dict.items()))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 50,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "[('yash', 2), ('rajnish', 9), ('ravi', 10), ('sanjeev', 15), ('suraj', 32)]\n"
     ]
    }
   ],
   "source": [
    "#sort by values\n",
    "print(sorted(name_dict.items(), key=lambda keyValue: (keyValue[1], keyValue[0])))"
   ]
  }
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