{
 "cells": [
  {
   "cell_type": "markdown",
   "id": "843a42a8-35a1-4061-8d0b-2cbd7442ef4f",
   "metadata": {},
   "source": [
    "# Woche 01"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 19,
   "id": "9cc0f19c-2374-4cc4-ae0e-a3f4515442cd",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "8"
      ]
     },
     "execution_count": 19,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# assign 4 to the variable x\n",
    "x = 4\n",
    "x * 2"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "id": "3d0af26e-3aa0-49f8-b7fd-988b72d32d6a",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "int"
      ]
     },
     "execution_count": 16,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "x = 1         # x is an integer\n",
    "type( x )"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 20,
   "id": "c976e529-1fd1-43bc-881f-c813bc528cd0",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'hellohello'"
      ]
     },
     "execution_count": 20,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "x = 'hello'   # now x is a string\n",
    "x * 2"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "id": "fcffa208-d671-4937-9a13-08aa35216682",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "list"
      ]
     },
     "execution_count": 18,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "x = [1, 2, 3] # now x is a list\n",
    "type ( x )\n"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "e25c8f9e-ad27-4fd6-b78d-1e6337455c4a",
   "metadata": {},
   "source": [
    "## Exkurs: Datentypen nach Operatoren"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 21,
   "id": "98a85bd2-3c19-426c-b17d-7a84b29195dd",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "2.3333333333333335"
      ]
     },
     "execution_count": 21,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "7 / 3"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 22,
   "id": "ac3cd4f2-77d1-4ef8-81b2-841d9dd736cf",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "3.0"
      ]
     },
     "execution_count": 22,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "9/3"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 25,
   "id": "fed8277a-7e0b-44f3-970c-5e21d6be6c3d",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "int"
      ]
     },
     "execution_count": 25,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "type ( 7 % 3 )"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 26,
   "id": "0a2d3f2f-d8f7-4da9-8c22-8dcee01c087e",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "int"
      ]
     },
     "execution_count": 26,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "type ( 7 // 3 )"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "bee1ba62-8877-4191-944c-0dd77a317284",
   "metadata": {},
   "source": [
    "## Pointer"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 27,
   "id": "b10d5f0a-ba22-4e00-b3ea-7381656dde3d",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "(3, 3)"
      ]
     },
     "execution_count": 27,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "x = 3\n",
    "y = x\n",
    "\n",
    "x , y"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 28,
   "id": "48199b0a-fad6-41e3-9fc6-bd87c22be4ce",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "33"
      ]
     },
     "execution_count": 28,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "x = 33\n",
    "x"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 29,
   "id": "e3388fb3-0097-4f24-a9a8-723058eb963f",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "3"
      ]
     },
     "execution_count": 29,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "y"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 30,
   "id": "249d5da6-1bb6-4825-aa66-0fabd7197bdd",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "([1, 2, 3], [1, 2, 3])"
      ]
     },
     "execution_count": 30,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "p = [1, 2, 3]\n",
    "q = p\n",
    "\n",
    "p, q"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 31,
   "id": "36cd97db-8af9-4a45-8513-ee1635d6d30d",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[1, 2, 3, 99]"
      ]
     },
     "execution_count": 31,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "p.append( 99 )\n",
    "p"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 32,
   "id": "c2bd91f1-4152-429a-93eb-982ee4a0e33f",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[1, 2, 3, 99]"
      ]
     },
     "execution_count": 32,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "q"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 33,
   "id": "150670a1-abad-461c-8717-840c07d5a017",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[1, 2, 3, 99, 1001, 1002]"
      ]
     },
     "execution_count": 33,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "p.extend( [ 1001, 1002 ] )\n",
    "p"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 34,
   "id": "b23f09c8-2ab6-4729-828e-a30a54358944",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[1, 2, 3, 99, 1001, 1002]"
      ]
     },
     "execution_count": 34,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "q"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 35,
   "id": "af05c559-82e7-4132-b3ce-9c26b172c0cd",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[1, 2, 3, 99, 1001, 1002, 2001, 2002, 2003]"
      ]
     },
     "execution_count": 35,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "p = p + [ 2001, 2002, 2003 ]\n",
    "p"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 36,
   "id": "875aaf34-9c07-4a78-8d15-d5d2b4f54d9e",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[1, 2, 3, 99, 1001, 1002]"
      ]
     },
     "execution_count": 36,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "q"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 42,
   "id": "3fa8ffdb-81f2-43ea-a602-4a70327ff837",
   "metadata": {},
   "outputs": [],
   "source": [
    "l = [ 1, 2, 3]\n",
    "m = [ 100, 102, 102 ]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "75727bdd-4e50-4895-a2c8-b0f0e74b7749",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "True"
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "e_gleich_e = 1 == 1\n",
    "e_gleich_e"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "id": "b5eccd8b-3e09-4780-b991-6c25a41916a4",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "bool"
      ]
     },
     "execution_count": 5,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "type ( e_gleich_e )"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "id": "7ba2bdeb-058e-40f5-affb-b4fe3bd52c15",
   "metadata": {},
   "outputs": [],
   "source": [
    "x = None\n",
    "x"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "id": "7d9563bb-cdd6-4a5d-b7b1-b7b01275289a",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "None\n"
     ]
    }
   ],
   "source": [
    "print( x )"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "id": "d0bf7769-8a70-4de3-b341-395441164514",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "NoneType"
      ]
     },
     "execution_count": 8,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "type( x )"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "618a2483-a0bd-4976-8883-983c2793f1f2",
   "metadata": {},
   "source": [
    "# Listen und Strings"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "458f5235-3456-4864-b4aa-b7ec8e560e01",
   "metadata": {},
   "source": [
    "## Slicing"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "id": "7ce46afe-587d-4cc9-82bf-906de38f2ff0",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'Hallo!'"
      ]
     },
     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "h = \"Hallo!\"\n",
    "h"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "8ade7ebe-16db-4689-a08e-3d25458548fd",
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "700d64f7-3e7f-4458-bcd0-0d4023494c9a",
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "88193c58-1854-4ac4-aacb-bacd454b96c3",
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "4347360d-ad77-4696-b83c-01a2c7e7d0fe",
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "fcca20bd-27ba-4c63-9641-55c880939b40",
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "id": "1ae57102-1734-4ff3-8f6d-e8cdae216121",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['H', 'a', 'l', 'l', 'o', '!']"
      ]
     },
     "execution_count": 11,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "l = [ 'H', 'a', 'l', 'l', 'o', '!' ] \n",
    "l"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 38,
   "id": "2bffd530-9503-4a6b-b0fc-0110616f9581",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['H', 'a', 'l', 'l', 'o', '!']"
      ]
     },
     "execution_count": 38,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "list( h )\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "id": "693bfeb1-2379-447d-800e-dcc7dc5d9860",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'H'"
      ]
     },
     "execution_count": 15,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "h[0]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "id": "e05a208c-a6ff-4d03-8b66-133b42897d58",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'H'"
      ]
     },
     "execution_count": 16,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "l[0]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "id": "c9d74b9b-af58-4541-a734-727057c70924",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'Hal'"
      ]
     },
     "execution_count": 17,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "h[ 0:3 ]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "id": "1811b53c-e61a-4809-9ec5-053f67811cdb",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['H', 'a', 'l']"
      ]
     },
     "execution_count": 18,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "l[ 0:3 ]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 25,
   "id": "8db56458-1d6c-4be7-b2a4-79bf56977bec",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "str"
      ]
     },
     "execution_count": 25,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "type( h[:] )"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 26,
   "id": "52cc067f-6ca7-4d91-94b6-f6802b3f6bfc",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "list"
      ]
     },
     "execution_count": 26,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "type( l[:] )"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 32,
   "id": "bfb48f83-fea2-4539-988d-f0b940d67859",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'!ollaH'"
      ]
     },
     "execution_count": 32,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "h[::-1]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 35,
   "id": "0cad29c2-daa6-463e-bc3a-fb1fc8b14b81",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['H', 'a', 'l', 'l']"
      ]
     },
     "execution_count": 35,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "l[ :-2 ]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 37,
   "id": "b6c5a3bd-d3bb-4c7a-82a1-45138ba58e57",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['H', 'a', 'l', 'l', 'o', '!']"
      ]
     },
     "execution_count": 37,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "list( h )"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 42,
   "id": "40c56955-12ee-45a3-91fa-9fc7a87f3a9e",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']\n"
     ]
    }
   ],
   "source": [
    "kleinbuchstaben = \"abcdefghijklmnopqrstuvwxyz\"\n",
    "print( list( kleinbuchstaben ) )"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 45,
   "id": "1d8fd94b-922c-408a-af47-e5b5761d5185",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "False"
      ]
     },
     "execution_count": 45,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "\"!\" in kleinbuchstaben"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 47,
   "id": "cb42d793-043b-4e12-b4dd-07d9b3d33bb5",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "True"
      ]
     },
     "execution_count": 47,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "\"xy\" in \"abcxyz\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 49,
   "id": "e9e3a5a8-766b-4c05-a3e4-7292d43986e8",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "('Hallo!', str)"
      ]
     },
     "execution_count": 49,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "h, type( h )"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 53,
   "id": "003154e6-e6f4-4c99-ad20-892294f63bb8",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'HALLO!'"
      ]
     },
     "execution_count": 53,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "h.upper()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 54,
   "id": "3fabfdf5-8065-415a-a6ce-2c25c70b75c1",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'HALLO WELT!'"
      ]
     },
     "execution_count": 54,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "\"Hallo Welt!\".upper()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 86,
   "id": "ae95e403-cad0-4c4d-a78c-85a1a6951f65",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "72\n",
      "72\n",
      "63\n"
     ]
    }
   ],
   "source": [
    "satz = \"     Die Methode stip()    entfernt linke und    rechte Leerzeichen.    \"\n",
    "print( len(satz) )\n",
    "satz.strip()  \n",
    "print( len(satz) )\n",
    "satz2 = satz.strip()\n",
    "print( len(satz2) )"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 89,
   "id": "7dfc24ec-3f09-4a19-9376-ae7a361cb34a",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'split() nimmt    einen     String und  teilt ihn am Split-Zeichen auf.'"
      ]
     },
     "execution_count": 89,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "satz = \"split() nimmt    einen     String und  teilt ihn am Split-Zeichen auf.\"\n",
    "satz"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 90,
   "id": "17c369c6-0da7-48b4-8804-9c11ee018794",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "['split()', 'nimmt', 'einen', 'String', 'und', 'teilt', 'ihn', 'am', 'Split-Zeichen', 'auf.']\n"
     ]
    }
   ],
   "source": [
    "satz_lvs = satz.split() # lvs ... Liste von Strings\n",
    "print( satz_lvs  )"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 91,
   "id": "4eb37bba-0174-4edc-964c-03d6da743e96",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'SPLIT()--NIMMT--EINEN--STRING--UND--TEILT--IHN--AM--SPLIT-ZEICHEN--AUF.'"
      ]
     },
     "execution_count": 91,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "\"--\".join( satz_lvs ).upper()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "8a4d7d2e-452b-4386-b6f6-8993c294e63d",
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
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