我正在尝试使用xpath收集一堆链接,需要从下一页抓取但是,我一直得到只能解析字符串的错误?我试着看看lk的类型,在我投入之后它是一个字符串?什么似乎是错的?
def unicode_to_string(types):
try:
types = unicodedata.normalize("NFKD", types).encode('ascii', 'ignore')
return types
except:
return types
def getData():
req = "http://analytical360.com/access-points"
page = urllib2.urlopen(req)
tree = etree.HTML(page.read())
i = 0
for lk in tree.xpath('//a[@class="sabai-file sabai-file-image sabai-file-type-jpg "]//@href'):
print "Scraping Vendor #" + str(i)
trees = etree.HTML(urllib2.urlopen(unicode_to_string(lk)))
for ll in trees.xpath('//table[@id="archived"]//tr//td//a//@href'):
final = etree.HTML(urllib2.urlopen(unicode_to_string(ll)))
答案 0 :(得分:1)
你应该传入字符串而不是urllib2.orlopen。
也许更改代码如下:
trees = etree.HTML(urllib2.urlopen(unicode_to_string(lk)).read())
for i, ll in enumerate(trees.xpath('//table[@id="archived"]//tr//td//a//@href')):
final = etree.HTML(urllib2.urlopen(unicode_to_string(ll)).read())
此外,您似乎没有增加i
。