使用urllib2 - diacritics打开页面

Question

我试图使用urllib2打开多个页面。问题是有些页面不能打开。它返回urllib2.HTTPerror: HTTP Error 400: Bad Request

我从另一个网页中得到这个页面的参考文件(页面的顶部是charset = "utf-8")。只有当我试图在url中打开包含“č‘，’ž”或“ř”的页面时，才会返回错误。

以下是代码：

def getSoup(url):
    req = urllib2.Request(url)

    response = urllib2.urlopen(req)
    page = response.read()
    soup = BeautifulSoup(page, 'html.parser')
    return soup




hovienko = getSoup("http://www.hovno.cz/hovna-az/a/1/")
lis = hovienko.find("div", class_="span12").find('ul').findAll('li')

for liTag in lis:

    aTag = liTag.find('a')['href']
    href = "http://www.hovno.cz"+aTag  """ hrefs, I'm trying to open using urllib2 """
    soup = getSoup(href.encode("iso-8859-2")) """ here occures errors when 'č','ž' or 'ř' in url """

有人知道我该怎么做才能避免错误吗？

谢谢

Answer 1

解决办法很简单。我应该使用used 2.引号()。

编辑代码：

for liTag in lis:

    aTag = liTag.find('a')['href']
    href = "http://www.hovno.cz"+urllib2.quote(aTag.encode("utf-8"))
    soup = getSoup(href)

Answer 2

这个网站是UTF-8。为什么需要href.encode("iso-8859-2")？我已经从http://programming-review.com/beautifulsoasome-interesting-python-functions/获取了下一个代码

    import urllib2
    import cgitb
    cgitb.enable()
    from BeautifulSoup import BeautifulSoup
    from urlparse import urlparse

# print all links
def PrintLinks(localurl):
    data = urllib2.urlopen(localurl).read()
    print 'Encoding of fetched HTML : %s', type(data)
    soup = BeautifulSoup(data)
    parse = urlparse(localurl)
    localurl = parse[0] + "://" + parse[1]
    print "<h3>Page links statistics</h3>"
    l = soup.findAll("a", attrs={"href":True})
    print "<h4>Total links count = " + str(len(l)) + '</h4>'
    externallinks = [] # external links list
    for link in l:
    # if it's external link
        if link['href'].find("http://") == 0 and link['href'].find(localurl) == -1:
            externallinks = externallinks + [link]
    print "<h4>External links count = " + str(len(externallinks)) + '</h4>'


    if len(externallinks) > 0:
        print "<h3>External links list:</h3>"
        for link in externallinks:
          if link.text != '':
            print '<h5>' + link.text.encode('utf-8')
            print ' => [' + '<a href="' + link['href'] + '" >' + link['href'] + '</a>' +  ']' + '</h5>'
          else:
            print '<h5>' + '[image]',
            print ' => [' + '<a href="' + link['href'] + '" >' + link['href'] + '</a>' +  ']' + '</h5>'


PrintLinks( "http://www.zlatestranky.cz/pro-mobily/")

Answer 3

这里有几件事。

首先，您的URI不能包含非ASCII。你得换掉它们。参见：如何用Python urlopen获取非ascii url？

其次，为自己省下一个痛苦的世界，并将请求用于HTTP内容。