Freaks City

To install the library along with a high-performence parser: pip install beautifulsoup4 lxml Begin by importing the class and initializing the parser with your markup: from bs4 import BeautifulSoup markup = """ <article class="product-listing"> <header> <h1 id="main-title">Electronics ...

Overview When scraping an entire website like Qiushibaike (Chinese joke site), you have two approaches: Method 1: Use Scrapy's base Spider class with recursive crawling (manual request callbacks). Method 2: Use CrawlSpider for automated link extraction and crawling (cleaner and more efficient). This guide covers: CrawlSpider introduction Crawl ...

GET Requests with Dictionary Parameters When making GET requests with query parameters, we can construct URLs dynamically using dictionaries: import urllib.request import urllib.parse import string def get_params(): base_url = "http://www.baidu.com/s" params = { "query": "中文", &quot ...

Installation Install the library using pip: pip install lxml XPath Core Concepts Node Types XPath defines seven node types: element, attribute, text, namespace, processing instruction, comment, and the document (root) node. An XML document is represented as a node tree, with the root of the tree being the document or root node. Consider this s ...

A web scraper automates the extraction of data from websites. The core process involves two primary steps: fetching web content and parsing the desired information. To begin, install the requests library, which handles HTTP requests. pip install requests Many websites restrict automated access. To mimic a real browser, you need to set a User-A ...

This article explores the fundamentals of web scraping using Python, covering aspects from basic browser automation to the powerful Scrapy framework. Web Scraping with Selenium Selenium is a popular tool for browser automation, enabling the simulation of user interactions with web pages. The following example demonstrates how to use Selenium wi ...

Web automation is frequently used to monitor e-commerce prices. The following script demonstrates how to track a product price and trigger an API notification when a target threshold is met. This example utilizes the mixed mode to handle navigation and data extraction seamlessly. from DrissionPage import WebPage import requests import time # I ...

Pandas can be used to load and filter Excel datasets containing geographic coordinates. For example, to extract Starbucks store locations in Shanghai from a spreadsheet, read the file and apply a city-based filter. import pandas as pd data_frame = pd.read_excel("stores_data.xlsx") shanghai_locations = data_frame[data_frame['city'] == ...

Often we need to download tabular data displayed on a web page as an Excel file. When the site does not provide a suitable download option, a custom script can be used to gather the data and export it. Using a Tampermonkey (userscript) makes it easy to share the solution with others. Below are two practical approaches: one that simulates manual ...

RedisSpider Overview RedisSpider extends Scrapy's base Spider class to enable distributed crawling. Instead of using a static start_urls list, this spider reads URLs from a Redis queue. Key Differences from Standard Spider The main modifications involve imports, inheritance, and replacing the static URL list with a Redis key: from scrapy_redis. ...