Questions assigned in Full Stack Data Science Class -- 21-05-22.ipynb

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   "source": [
    "# Questions assigned in Full Stack Data Science Class -- 21-05-22"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "12e5a996",
   "metadata": {},
   "source": [
    "### l = [3,4,5,6,7 , [23,456,67,8,78,78] , [345,56,87,8,98,9] , (234,6657,6) , {\"key1\" :\"sudh\" , 234:[23,45,656]}]"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "62d5e004",
   "metadata": {},
   "source": [
    "### 1 . Try to reverse a list. "
   ]
  },
  {
   "cell_type": "markdown",
   "id": "560a8b1d",
   "metadata": {},
   "source": [
    "##### ANSWER: "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "d76bcd83",
   "metadata": {},
   "outputs": [],
   "source": [
    "l = [3,4,5,6,7 , [23,456,67,8,78,78] , [345,56,87,8,98,9] , (234,6657,6) , {\"key1\" :\"sudh\" , 234:[23,45,656]}]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "900f39a0",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[{'key1': 'sudh', 234: [23, 45, 656]},\n",
       " (234, 6657, 6),\n",
       " [345, 56, 87, 8, 98, 9],\n",
       " [23, 456, 67, 8, 78, 78],\n",
       " 7,\n",
       " 6,\n",
       " 5,\n",
       " 4,\n",
       " 3]"
      ]
     },
     "execution_count": 2,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# Reverses the list only in run time and does not change the original list\n",
    "l[::-1]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "d629842b",
   "metadata": {},
   "outputs": [],
   "source": [
    "# Reverses the original list \n",
    "l.reverse()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "3841665f",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[{'key1': 'sudh', 234: [23, 45, 656]},\n",
       " (234, 6657, 6),\n",
       " [345, 56, 87, 8, 98, 9],\n",
       " [23, 456, 67, 8, 78, 78],\n",
       " 7,\n",
       " 6,\n",
       " 5,\n",
       " 4,\n",
       " 3]"
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "l"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "95719c53",
   "metadata": {},
   "source": [
    "### 2. Try to access 234 out of this list."
   ]
  },
  {
   "cell_type": "markdown",
   "id": "49d66f7f",
   "metadata": {},
   "source": [
    "##### ANSWER:  "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "8911e287",
   "metadata": {},
   "outputs": [],
   "source": [
    "l = [3,4,5,6,7 , [23,456,67,8,78,78] , [345,56,87,8,98,9] , (234,6657,6) , {\"key1\" :\"sudh\" , 234:[23,45,656]}]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "id": "81066af0",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "234"
      ]
     },
     "execution_count": 6,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "l[7][0]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "a0badd40",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "234"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "list(l[8].keys())[1]"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "d704b670",
   "metadata": {},
   "source": [
    "### 3 . Try to access 456."
   ]
  },
  {
   "cell_type": "markdown",
   "id": "bd5c1179",
   "metadata": {},
   "source": [
    "##### ANSWER:  "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "id": "de347e43",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "456"
      ]
     },
     "execution_count": 7,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "l[5][1]"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "a8a63878",
   "metadata": {},
   "source": [
    "### 4 . Try to extract only a list collection form list l. "
   ]
  },
  {
   "cell_type": "markdown",
   "id": "5ec7f969",
   "metadata": {},
   "source": [
    "##### ANSWER:  "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "id": "4d6d3c8c",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[[23, 456, 67, 8, 78, 78], [345, 56, 87, 8, 98, 9]]"
      ]
     },
     "execution_count": 8,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "l[5:7]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "672a5119",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[23, 456, 67, 8, 78, 78]"
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "l[5]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "id": "fa2966a5",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[345, 56, 87, 8, 98, 9]"
      ]
     },
     "execution_count": 5,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "l[6]"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "2d1dcb99",
   "metadata": {},
   "source": [
    "### 5 . Try to extract \"sudh\"."
   ]
  },
  {
   "cell_type": "markdown",
   "id": "b88284fe",
   "metadata": {},
   "source": [
    "##### ANSWER:  "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "id": "a5d0a94f",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'sudh'"
      ]
     },
     "execution_count": 9,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "l[8]['key1']"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "3e455b8f",
   "metadata": {},
   "source": [
    "### 6 . Try to list all the key in dict element avaible in list. "
   ]
  },
  {
   "cell_type": "markdown",
   "id": "1f7f98d2",
   "metadata": {},
   "source": [
    "##### ANSWER:  "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "id": "e5def247",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'key1': 'sudh', 234: [23, 45, 656]}"
      ]
     },
     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "l[8]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "id": "513fbbae",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "dict_keys(['key1', 234])"
      ]
     },
     "execution_count": 11,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "l[8].keys()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "id": "823decf6",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['key1', 234]"
      ]
     },
     "execution_count": 6,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "list(l[8].keys())"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "9d35cb90",
   "metadata": {},
   "source": [
    "### 7 . Try to extract all the value element form dict available in list."
   ]
  },
  {
   "cell_type": "markdown",
   "id": "0c23e2a8",
   "metadata": {},
   "source": [
    "##### ANSWER:  "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "id": "fc693a91",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'key1': 'sudh', 234: [23, 45, 656]}"
      ]
     },
     "execution_count": 12,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "l[8]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "id": "9a7d23c7",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "dict_values(['sudh', [23, 45, 656]])"
      ]
     },
     "execution_count": 13,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "l[8].values()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "id": "ea5584ac",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['sudh', [23, 45, 656]]"
      ]
     },
     "execution_count": 7,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "list(l[8].values())"
   ]
  }
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