我试图通过抓取网站进行练习,但是我一直收到HTTP错误403(它认为我是机器人)吗?
这是我的代码:
#import requests
import urllib.request
from bs4 import BeautifulSoup
#from urllib import urlopen
import re
webpage = urllib.request.urlopen('http://www.cmegroup.com/trading/products/#sortField=oi&sortAsc=false&venues=3&page=1&cleared=1&group=1').read
findrows = re.compile('<tr class="- banding(?:On|Off)>(.*?)</tr>')
findlink = re.compile('<a href =">(.*)</a>')
row_array = re.findall(findrows, webpage)
links = re.finall(findlink, webpate)
print(len(row_array))
iterator = []
我得到的错误是:
File "C:\Python33\lib\urllib\request.py", line 160, in urlopen
return opener.open(url, data, timeout)
File "C:\Python33\lib\urllib\request.py", line 479, in open
response = meth(req, response)
File "C:\Python33\lib\urllib\request.py", line 591, in http_response
'http', request, response, code, msg, hdrs)
File "C:\Python33\lib\urllib\request.py", line 517, in error
return self._call_chain(*args)
File "C:\Python33\lib\urllib\request.py", line 451, in _call_chain
result = func(*args)
File "C:\Python33\lib\urllib\request.py", line 599, in http_error_default
raise HTTPError(req.full_url, code, msg, hdrs, fp)
urllib.error.HTTPError: HTTP Error 403: Forbidden
req
多个urlopen
电话是安全的。