7_dictionaries.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "#**DICTIONARY**"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "#This is a dictionary\n",
    "#Dictionaries are used to store data values in key:value pairs\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "myDict = {\n",
    "    \"brand\": \"Ford\",\n",
    "    \"model\": \"Mustang\",\n",
    "    \"year\": 1964\n",
    "}"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "#add an item to the dictionary"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "myDict[\"color\"] = \"red\""
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "#remove an item from the dictionary"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "myDict.pop(\"model\")"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "#remove the last item from the dictionary"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "myDict.popitem()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "#remove all items from the dictionary"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "myDict.clear()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "#copy the dictionary"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "myDict2 = myDict.copy()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "#join two dictionaries"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "myDict3 = dict(myDict, **myDict2)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "#Dictionary methods\n",
    "\n",
    "#get() - returns the value of the specified key\n",
    "#items() - returns a list containing a tuple for each key value pair\n",
    "#keys() - returns a list containing the dictionary's keys\n",
    "#pop() - removes the element with the specified key\n",
    "#popitem() - removes the last inserted key-value pair\n",
    "#values() - returns a list of all the values in the dictionary"
   ]
  }
 ],
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