Python 中的 Scraper 给出了“拒绝访问" [英] Scraper in Python gives "Access Denied"

问题描述

我正在尝试用 Python 编写一个抓取工具以从页面中获取一些信息.就像出现在此页面上的优惠标题一样:
https://www.justdial.com/Panipat/Saree-Retailers/nct-10420585

I'm trying to code a scraper in Python to get some info from a page. Like the title of the offers that appear on this page:
https://www.justdial.com/Panipat/Saree-Retailers/nct-10420585

现在我使用这个代码:

import bs4
import requests

def extract_source(url):
    source=requests.get(url).text
    return source

def extract_data(source):
    soup=bs4.BeautifulSoup(source)
    names=soup.findAll('title')
    for i in names:
        print i

extract_data(extract_source('https://www.justdial.com/Panipat/Saree-Retailers/nct-10420585'))

但是当我执行这段代码时，它给了我一个错误:

But when I execute this code, it gives me an error:

<titlee> Access Denied</titlee>

我该怎么做才能解决这个问题?

What can I do to solve this?

推荐答案

正如评论中提到的，您需要指定允许的用户代理并将其作为 headers 传递:

As was mentioned in comments, you need to specify allowable user-agent and pass it as headers:

def extract_source(url):
    headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:50.0) Gecko/20100101 Firefox/50.0'}
    source=requests.get(url, headers=headers).text
    return source

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