Auntie Claire - Lesson 2_strings_.ipynb

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   "source": [
    "# Python index() Method\n",
    "\n",
    "\n",
    "The Python index() method returns the index position of an item in a list or a character or range of characters in a string. This method accepts one argument: the item you want to find in your list or string."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 29,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "C\n"
     ]
    }
   ],
   "source": [
    "name = 'Claire'\n",
    "print(name[0])\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 30,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "i\n"
     ]
    }
   ],
   "source": [
    "print(name[3]) #= ’i’\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 31,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "e\n"
     ]
    }
   ],
   "source": [
    "print(name[-1]) #= ’e’"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "4\n"
     ]
    }
   ],
   "source": [
    "#What is the index of r in the name Claire\n",
    "\n",
    "text = \"Claire\"\n",
    "\n",
    "result = text.index(\"r\")\n",
    "\n",
    "print(result)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "5\n"
     ]
    }
   ],
   "source": [
    "text = \"Claire\"\n",
    "\n",
    "result = text.index(\"e\")\n",
    "\n",
    "print(result)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 32,
   "metadata": {},
   "outputs": [
    {
     "ename": "IndexError",
     "evalue": "string index out of range",
     "output_type": "error",
     "traceback": [
      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[0;31mIndexError\u001b[0m                                Traceback (most recent call last)",
      "\u001b[0;32m<ipython-input-32-39ae7014532b>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[1;32m      7\u001b[0m \u001b[0mtext\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0;34m\"Sammy\"\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m      8\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m----> 9\u001b[0;31m \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mtext\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0;36m6\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
      "\u001b[0;31mIndexError\u001b[0m: string index out of range"
     ]
    }
   ],
   "source": [
    "\"\"\"\n",
    "IndexError - IndexErrors are one of the most common types \n",
    "of runtime errors in Python. They're raised when you try to \n",
    "access an index value inside a Python list that does not exist.\n",
    "\"\"\"\n",
    "\n",
    "text = \"Sammy\"\n",
    "\n",
    "print(text[6])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "m\n"
     ]
    }
   ],
   "source": [
    "text = \"Sammy\"\n",
    "\n",
    "print(text[2])"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "#### Negative Index - means that the index value of -1 gives the last element, and -2 gives the second last element"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "m\n"
     ]
    }
   ],
   "source": [
    "#negative index\n",
    "\n",
    "text = \"Sammy\"\n",
    "\n",
    "print(text[-3])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "y\n"
     ]
    }
   ],
   "source": [
    "#look for the last character\n",
    "\n",
    "text = \"Sammy\"\n",
    "print(text[-1])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "y\n"
     ]
    }
   ],
   "source": [
    "#look for the last character\n",
    "\n",
    "text = \"Sammy\"\n",
    "print(text[4])"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Slicing in Python[::] \n",
    "\n",
    "- is a feature that enables accessing parts of sequences like strings, tuples, and lists. "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "was\n"
     ]
    }
   ],
   "source": [
    "#Slicing strings\n",
    "\n",
    "#[start:stop:step]\n",
    "\n",
    "test = \"Test was extremely Hard\"\n",
    "\n",
    "print(test[5:8])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "was e\n"
     ]
    }
   ],
   "source": [
    "print(test[5:10])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Test was e\n"
     ]
    }
   ],
   "source": [
    "print(test[:10])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "xtremely Hard\n"
     ]
    }
   ],
   "source": [
    "print(test[10:])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "was\n"
     ]
    }
   ],
   "source": [
    "test = \"Test was extremely Hard\"\n",
    "\n",
    "print(test[5:8:1])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "w\n"
     ]
    }
   ],
   "source": [
    "test = \"Test was extremely Hard\"\n",
    "\n",
    "print(test[5:8:4])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 19,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "wee\n"
     ]
    }
   ],
   "source": [
    "print(test[5:14:4])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 20,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "was extre\n"
     ]
    }
   ],
   "source": [
    "test = \"Test was extremely Hard\"\n",
    "\n",
    "print(test[5:14])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 21,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "wee\n"
     ]
    }
   ],
   "source": [
    "test = \"Test was extremely Hard\"\n",
    "\n",
    "print(test[5:14:4])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 22,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "3456\n"
     ]
    }
   ],
   "source": [
    "test = \"123456789\"\n",
    "\n",
    "print(test[2:6])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 23,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "3456\n"
     ]
    }
   ],
   "source": [
    "test = \"123456789\"\n",
    "\n",
    "print(test[2:6:1])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 24,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "35\n"
     ]
    }
   ],
   "source": [
    "test = \"123456789\"\n",
    "\n",
    "print(test[2:6:2])"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 25,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "123456789\n"
     ]
    }
   ],
   "source": [
    "print(test[::])"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Exercise:\n",
    "\n",
    "1. Print the name of your school in anaconda \n",
    "2. Print three words let each word be on its own line\n",
    "3. Use len to give me the size of the word ‘anaconda’\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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