Python爬虫视频教程零基础小白到scrapy爬虫高手-轻松入门
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YouTube教程
Python Web Scraping Signature Series Tutorial 1 : Get Request with Python, Google Translate Part 1
检测---network---第二个single？client=。。。。。 ---preview可见 翻译结果
name：第二个文件single?client=....
headers
request url:
http://translate.google.cn/translate_a/single?client=t&sl=en&tl=zh-CN&hl=zh-CN&dt=at&dt=bd&dt=ex&dt=ld&dt=md&dt=qca&dt=rw&dt=rm&dt=ss&dt=t&ie=UTF-8&oe=UTF-8&source=btn&srcrom=1&ssel=3&tsel=6&kc=0&tk=749722.875867&q=signature
复制这个链接，打开新的网页会下载一个txt
其内容是对具体的翻译解释
出现urllib2.HTTPError: HTTP Error 403: Forbidden错误是由于网站禁止爬虫，可以在请求加上头信息，伪装成浏览器访问
#伪装浏览器头
headers = {'User-Agent':'Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.6) Gecko/20091201 Firefox/3.5.6'}
req = urllib2.Request(url = 'http://topic.csdn.net/u/20110123/15/F71C5EBB-7704-480B-9379-17A96E920FEE.html',headers = headers)
feeddata = urllib2.urlopen(req).read()
#或者
#opener = urllib2.build_opener()
#feeddata = opener.open(request).read()
print feeddata.decode('u8')
#伪装浏览器头
headers = {'User-Agent':'Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.6) Gecko/20091201 Firefox/3.5.6'}
req = urllib2.Request(url = 'http://topic.csdn.net/u/20110123/15/F71C5EBB-7704-480B-9379-17A96E920FEE.html',headers = headers)
feeddata = urllib2.urlopen(req).read()
#或者
#opener = urllib2.build_opener()
#feeddata = opener.open(request).read()
print feeddata.decode('u8')