{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "from csv import DictReader"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# read in the input file and count by day\n",
    "input_file = open(\"hp_wiki.tsv\", 'r', encoding=\"utf-8\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "edits_by_day = {}\n",
    "for row in DictReader(input_file, delimiter=\"\\t\"):\n",
    "    day_string = row['timestamp'][0:10]\n",
    "\n",
    "    if day_string in edits_by_day:\n",
    "        edits_by_day[day_string] = edits_by_day[day_string] + 1\n",
    "    else:\n",
    "        edits_by_day[day_string] = 1"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "input_file.close()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# output the counts by day\n",
    "output_file = open(\"hp_edits_by_day.tsv\", \"w\", encoding='utf-8')\n",
    "\n",
    "# write a header\n",
    "print(\"date\\tedits\", file=output_file)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# iterate through every day and print out data into the file\n",
    "for day_string in edits_by_day.keys():\n",
    "    print(\"\\t\".join([day_string, str(edits_by_day[day_string])]), file=output_file)\n",
    "\n",
    "output_file.close()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
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    "name": "ipython",
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   "file_extension": ".py",
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