{
 "cells": [
  {
   "cell_type": "markdown",
   "id": "8b7f2e13",
   "metadata": {},
   "source": [
    "## Nesting Dictionaries\n",
    "\n",
    "Given a file named \"grades.csv\" that has the contents\n",
    "\n",
    "```\n",
    "name, grade1, grade2, …\n",
    "ali, 67, 82, …\n",
    "cady, 94, 98, …\n",
    "tiernan, 83, 96, …\n",
    "```\n",
    "\n",
    "Write a function that returns a dictionary whose keys are strings (names), and values are a list of that person's grades. There may be any number of grades.\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "005c74e8",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{'ali': [67, 82], 'cady': [94, 98], 'tiernan': [83, 96]}\n"
     ]
    }
   ],
   "source": [
    "grades = {}\n",
    "with open('grades.csv') as file:\n",
    "    lines = file.readlines()\n",
    "    for line in lines[1:]:\n",
    "        line = line.strip()\n",
    "        parts = line.split(', ')\n",
    "\n",
    "        name = parts[0]\n",
    "        grades[name] = []\n",
    "        \n",
    "        for grade in parts[1:]:\n",
    "            grade = int(grade)\n",
    "            grades[name].append(grade)\n",
    "\n",
    "print(grades)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "f9743cc7",
   "metadata": {},
   "outputs": [],
   "source": [
    "{'ali': {'Homework 1': 67, 'Quiz 2': 82}, 'cady': [94, 98], 'tiernan': [83, 96]}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "7c2c9a74",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "['name', 'Homework 1', 'Quiz 2']\n",
      "0\n",
      "67\n",
      "Homework 1\n",
      "1\n",
      "82\n",
      "Quiz 2\n",
      "0\n",
      "94\n",
      "Homework 1\n",
      "1\n",
      "98\n",
      "Quiz 2\n",
      "0\n",
      "83\n",
      "Homework 1\n",
      "1\n",
      "96\n",
      "Quiz 2\n",
      "{'ali': {'Homework 1': 67, 'Quiz 2': 82}, 'cady': {'Homework 1': 94, 'Quiz 2': 98}, 'tiernan': {'Homework 1': 83, 'Quiz 2': 96}}\n"
     ]
    }
   ],
   "source": [
    "grades = {}\n",
    "with open('grades.csv') as file:\n",
    "    lines = file.readlines()\n",
    "    labels = lines[0].strip().split(', ')\n",
    "    print(labels)\n",
    "\n",
    "    for line in lines[1:]:\n",
    "        line = line.strip()\n",
    "        parts = line.split(', ')\n",
    "\n",
    "        name = parts[0]\n",
    "        grades[name] = {}\n",
    "        \n",
    "        for grade_index in range(len(parts[1:])):\n",
    "            print(grade_index)\n",
    "            grade = int(parts[grade_index + 1])\n",
    "            print(grade)\n",
    "            # grades[name].append(grade)\n",
    "\n",
    "            label = labels[grade_index + 1]\n",
    "            print(label)\n",
    "            grades[name][label] = grade\n",
    "\n",
    "print(grades)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "82d7d8c6",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{'name': 'ali', ' Homework 1': ' 67', ' Quiz 2': ' 82'}\n",
      "{'name': 'cady', ' Homework 1': ' 94', ' Quiz 2': ' 98'}\n",
      "{'name': 'tiernan', ' Homework 1': ' 83', ' Quiz 2': ' 96'}\n",
      "{'ali': {' Homework 1': ' 67', ' Quiz 2': ' 82'}, 'cady': {' Homework 1': ' 94', ' Quiz 2': ' 98'}, 'tiernan': {' Homework 1': ' 83', ' Quiz 2': ' 96'}}\n"
     ]
    }
   ],
   "source": [
    "import csv\n",
    "\n",
    "grades = {}\n",
    "with open('grades.csv') as file:\n",
    "    csv_reader = csv.DictReader(file)\n",
    "    for line in csv_reader:\n",
    "        print(line)\n",
    "\n",
    "        name = line['name']\n",
    "        del line['name']\n",
    "        grades[name] = line\n",
    "\n",
    "print(grades)"
   ]
  }
 ],
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   "name": "python"
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