正如标题所说，我想从 url 显示图像，而无需下载。到目前为止我的代码：
from bs4 import BeautifulSoup as soup
from tkinter import *
import urllib.parse
from PIL import Image, ImageTk
import io
website = "http://www.porcys.com/review/"
openWebsite = soup(urllib.request.urlopen(website), 'html.parser')
reviews = openWebsite.find(name="section", attrs={'class': 'slider-content review'}).ul
results = []
for a in reviews(href=True):
temp = "http://www.porcys.com"+a['href']
results.append(temp)
mainWindow = Tk()
mainWindow.title("Latest Porcys reviews")
for i in range(0, 8):
review = results[i]
openReview = soup(urllib.request.urlopen(review), 'html.parser')
rating = openReview.find(name="span", attrs={'class': 'rating'})
album = openReview.find(name="div", attrs={'class': 'wrapper'}).i
artist = openReview.find(name="div", attrs={'class': 'wrapper'}).h2
coverWIP …我有这样的用户更改密码视图：
class ChangePasswordView(generics.UpdateAPIView):
serializer_class = ChangePasswordSerializer
permission_classes = [IsAuthenticated]
def put(self, request, *args, **kwargs):
data = request.data.copy()
data['user'] = self.request.user
serializer = self.get_serializer(data=data)
serializer.is_valid(raise_exception=True)
user = serializer.validated_data['user']
user.set_password(serializer.validated_data["new_password"])
user.save()
return Response(status=status.HTTP_204_NO_CONTENT)
此视图的序列化器如下所示：
class ChangePasswordSerializer(serializers.Serializer):
old_password = serializers.CharField()
new_password = serializers.CharField()
new_password_retyped = serializers.CharField()
def validate(self, data):
old_password = data.get('old_password')
new_password = data.get('new_password')
new_password_retyped = data.get('new_password_retyped')
user = data.get('user')
# misc validation checks
data['user'] = user
return data
我的问题是用户对象没有传递给序列化器，尝试打印它以查看其中的数据内容put：
<QueryDict: {'old_password': ['testpassword'], 'new_password': ['testpassword1'], 'new_password_retyped': ['testpassword1'], 'user': [<User: root>]}> …我试图读取XML文件,但type of the expression in the select clause is incorrect. Type inference failed in the call to 'Select'由于以下查询而收到错误:
List<Data> dogs = (from q in doc.Descendants("dog")
where (string)q.Attribute("name") == dogName
select new Data
{
name = q.Attribute("name").Value,
breed = q.Element("breed").Value,
sex = q.Element("sex").Value
}.ToList<Data>);
数据类:
public class Data
{
public string name { get; set; }
public string breed { get; set; }
public string sex { get; set; }
public List<string> dogs { get; set; }
}
我正在尝试从某个网站检索链接并将其保存到列表中以供进一步使用.到目前为止我得到的(这是我存储输出的.txt文件):
<ul>
<li><a class="active" href="/review/huerco-s-those-you-who-have-never-and-also-those-w/">Huerco S.<span><i>For Those Of You Who Have Never (And Also Those Who Have)</i></span></a></li>
<li><a href="/review/dam-funk-dj-kicks/">Dâm-Funk<span><i>DJ-Kicks</i> </span></a></li>
<li><a href="/review/skepta-konnichiwa/">Skepta<span><i>Konnichiwa</i></span></a></li>
<li><a href="/review/jessy-lanza-oh-no/">Jessy Lanza<span><i>Oh No</i></span></a></li>
<li><a href="/review/radiohead-moon-shaped-pool/">Radiohead<span><i>A Moon Shaped Pool</i></span></a></li>
<li><a href="/review/brodka-clashes/">Brodka<span><i>Clashes</i></span></a></li>
<li><a href="/review/james-blake-colour-anything/">James Blake<span><i> The Colour In Anything</i></span></a></li>
<li><a href="/review/kamaiyah-good-night-ghetto/">Kamaiyah<span><i>A Good Night In The Ghetto</i></span></a></li>
</ul>
我想将这些特定链接提取到列表中.我的代码:
website = "http://www.porcys.com/review/"
openWebsite = soup(urllib.request.urlopen(website), 'html.parser')
reviews = openWebsite.find(name="section", attrs={'class': 'slider-content review'}).ul
for a in reviews(href = True):
temp = str("http://www.porcys.com"+str(a['href']))
print(temp)
打印输出正是我想要的(这意味着 - 只是链接,没有任何HTML标签),但我将它移动到列表有困难.我试过了
results[a] = temp
a+=1
但我得到"列表索引必须是整数或切片,而不是标签"