5.Dictionaries.ipynb

{
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  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "<type 'dict'>\n"
     ]
    }
   ],
   "source": [
    "empty_dictionary = {}\n",
    "print(type(empty_dictionary))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{'Hobby': 'Music', 'Age': [35], 'Name': 'Bob Marley', 'Height': '5.6 ft'}\n"
     ]
    }
   ],
   "source": [
    "bio_data = {'Name': 'Bob Marley', 'Age':[35], 'Height':\"5.6 ft\", 'Hobby': 'Music'}\n",
    "print(bio_data)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "credentials = { 'UserA' : 'wkliopnc' , 'UserB': 98760 , 'UserC' :98760 } "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Music\n"
     ]
    }
   ],
   "source": [
    "hobby = bio_data['Hobby']\n",
    "print(hobby)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "[35]\n"
     ]
    }
   ],
   "source": [
    "age = bio_data['Age']\n",
    "print(age)\n",
    "bio_data."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "[35]\n"
     ]
    }
   ],
   "source": [
    "age = bio_data.get('Age')\n",
    "print(age)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{'Hobby': 'Music', 'Age': 36, 'Name': 'Bob Marley', 'Height': '5.6 ft'}\n"
     ]
    }
   ],
   "source": [
    "bio_data['Age'] = 36\n",
    "print(bio_data)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{'Hobby': 'Music', 'Age': 36, 'Profession': 'Singer', 'Name': 'Bob Marley', 'Height': '5.6 ft'}\n"
     ]
    }
   ],
   "source": [
    "#add a key, val\n",
    "bio_data['Profession'] = 'Singer'\n",
    "print(bio_data)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "True\n"
     ]
    }
   ],
   "source": [
    "print('Profession' in bio_data)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "['Hobby', 'Age', 'Profession', 'Name', 'Height']\n",
      "['Music', 36, 'Singer', 'Bob Marley', '5.6 ft']\n"
     ]
    }
   ],
   "source": [
    "#get list of keys\n",
    "print(list(bio_data.keys()))\n",
    "\n",
    "#get list of values\n",
    "print(list(bio_data.values()))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{'Country': 'Jamaica', 'Songs': ['One Love', 'Misty Morning']}\n"
     ]
    }
   ],
   "source": [
    "new_dictionary = dict(Country='Jamaica', Songs=['One Love','Misty Morning'])\n",
    "print(new_dictionary)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{'Name': 'Bob Marley', 'Country': 'Jamaica', 'Hobby': 'Music', 'Age': [35], 'Songs': ['One Love', 'Misty Morning'], 'Height': '5.6 ft'}\n"
     ]
    }
   ],
   "source": [
    "bio_data.update(new_dictionary)\n",
    "print(bio_data)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{'Name': 'Bob Marley', 'Country': 'Jamaica', 'Hobby': 'Music', 'Age': [35], 'Height': '5.6 ft'}\n"
     ]
    }
   ],
   "source": [
    "del bio_data['Songs']\n",
    "print(bio_data)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{1: ['Shivam Bansal', 24], 2: ['Udit Bansal', 25], 3: ['Sonam Gupta', 26], 4: ['Saif Ansari', 24], 5: ['Huzefa Calcuttawala', 27]}\n"
     ]
    }
   ],
   "source": [
    "students_data = { 1:['Shivam Bansal', 24] , 2:['Udit Bansal',25], 3:['Sonam Gupta', 26], 4:['Saif Ansari',24], 5:['Huzefa Calcuttawala',27]}\n",
    "\n",
    "print(students_data)\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "5\n"
     ]
    }
   ],
   "source": [
    "print(len(students_data))\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "[['Shivam Bansal', 24], ['Udit Bansal', 25], ['Sonam Gupta', 26], ['Saif Ansari', 24], ['Huzefa Calcuttawala', 27]]\n"
     ]
    }
   ],
   "source": [
    "#see all the details of students. \n",
    "print(list(students_data.values()))\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{1: ['Shivam Bansal', 24], 2: ['Udit Bansal', 25], 3: ['Sonam Gupta', 26], 4: ['Saif Ansari', 24], 5: ['Huzefa Calcuttawala', 27], 6: ['Manasi Sharma', 22]}\n"
     ]
    }
   ],
   "source": [
    "students_data[6] = ['Manasi Sharma', 22]\n",
    "print(students_data)\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{1: ['Shivam Bansal', 24], 3: ['Sonam Gupta', 26], 4: ['Saif Ansari', 24], 5: ['Huzefa Calcuttawala', 27], 6: ['Manasi Sharma', 22]}\n"
     ]
    }
   ],
   "source": [
    "del students_data[2]\n",
    "print(students_data)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "print(list(students_data.keys()))\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "help(dict)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": []
  }
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