python爬虫(2)-抓图片

环境：python3.6
目标：爬取HTML页面的图片，保存到本地

import requests
import os
from bs4 import BeautifulSoup


def downloadImages(imageLinks, localPath):

    if not os.path.isdir(localPath):
        os.mkdir(localPath)

    for (index, url) in enumerate(imageLinks):
        try:
            res = requests.get(url)
            filename = os.path.join(localPath, str(index) + ".jpg")
            with open(filename, "wb") as f:
                f.write(res.content)
                print("download %sth picture" % index)
        except:
            print("download failure ：", url)


def getImageLinks(htmlUrl):
    html = requests.get(htmlUrl).text
    bsObj = BeautifulSoup(html, "lxml")
    imgTags = bsObj.find_all("img", {"height":"265"})
    imageLinks = []
    for i in imgTags:
        if "src" in i.attrs:
            imageLinks.append(i.attrs["src"])
    return imageLinks


imageLinks = getImageLinks("http://www.27270.com/zt/xinggan/")
downloadImages(imageLinks, "/tmp/1118/")