exploring.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Park-Vorhersage"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Website to extract info from"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [],
   "source": [
    "url = r'https://www.parken-osnabrueck.de/'"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Selenium\n",
    "\n",
    "Use selenium to drive headless firefox (other browsers can be configured, too)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 37,
   "metadata": {},
   "outputs": [],
   "source": [
    "from selenium import webdriver\n",
    "from selenium.webdriver.firefox.options import Options"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 36,
   "metadata": {},
   "outputs": [],
   "source": [
    "options = Options()\n",
    "options.headless = True\n",
    "driver = webdriver.Firefox(options=options)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## robots.txt\n",
    "\n",
    "Check if crawling is generally not desired by website operator"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 35,
   "metadata": {},
   "outputs": [],
   "source": [
    "from urllib import robotparser"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "parser = robotparser.RobotFileParser(url=url)\n",
    "parser.read()\n",
    "'Website can be parsed: {}'.format(parser.can_fetch('*', url))"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Read page source and extract information"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 40,
   "metadata": {},
   "outputs": [],
   "source": [
    "driver.get(url)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Use BeautifulSoup to easily read page source"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 34,
   "metadata": {},
   "outputs": [],
   "source": [
    "from bs4 import BeautifulSoup"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "soup = BeautifulSoup(driver.page_source)\n",
    "\n",
    "for item in soup.find_all('span', 'parking-ramp-utilization'):\n",
    "    print(item.text)"
   ]
  }
 ],
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