Scrape recent Chrome and Firefox version numbers

Chrome_versions.ipynb

Firefox_versions.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Get Firefox versions (Major)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Imports"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import requests\n",
    "from lxml import html"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Preamble"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "url = \"https://www.mozilla.org/en-US/firefox/releases/\""
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Main"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "with open(\"firefox_versions.txt\", \"r\", encoding=\"utf-8\") as fh:\n",
    "    versions = fh.read().splitlines()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "versions = []"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "r = requests.get(url)\n",
    "tree = html.fromstring(r.content)\n",
    "\n",
    "new_versions = [version for version in tree.xpath('//ol[@class=\"c-release-list\"]/li/strong/a/text()') if version not in versions]\n",
    "new_versions.remove(\"14.0.1\")\n",
    "new_versions = sorted(new_versions, key=float)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "new_versions"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "if new_versions:\n",
    "    with open(\"firefox_versions.txt\", \"a\", encoding=\"utf-8\") as fh:\n",
    "        for version in sorted(new_versions):\n",
    "            fh.write(version + \"\\n\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ],
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