代码运行不了 下载不了图片

Question

#! python3

downloadXkcd.py - Downloads every single XKCD comic.

import requests, os, bs4

url = 'http://xkcd.com' # starting url
os.makedirs('xkcd', exist_ok=True) # store comics in ./xkcd
while not url.endswith('#'):
# Download the page.
print('Downloading page %s...' % url)
res = requests.get(url)
res.raise_for_status()

soup = bs4.BeautifulSoup(res.text, 'lxml')

# Find the URL of the comic image.
comicElem = soup.select('#comic img')
if comicElem == []:
    print('Could not find comic image.')
else:
    comicUrl = comicElem[0].get('src')
    # Download the image.
    print('Downloading image %s...' % (comicUrl))
    res = requests.get(comicUrl)
    res.raise_for_status()

    # Save the image to ./xkcd
    imageFile = open(os.path.join('xkcd', os.path.basename(comicUrl)), 'wb')
    for chunk in res.iter_content(100000):
        imageFile.write(chunk)
    imageFile.close()

# Get the Prev button's url.
prevLink = soup.select('a[rel="prev"]')[0]
url = 'http://xkcd.com' + prevLink.get('href')

print('Done.')

代码是这样的，但是运行之后就是有错误，想问一下到底是哪里出错了

Answer 1

我觉得是不是URL不太对，报错Invalid url