qpython运行 原代码:    soup = BeautifulSoup(r.text,'lxml') 报错:bs4.FeatureNotFound: Couldn't find a tree builder with the features you requested: lxml. Do you need to install a parser library? 改成:    soup = BeautifulSoup(r.text,'html.parser') ok…

Python小白,学习时候用到bs4解析网站,报错 bs4.FeatureNotFound: Couldn't find a tree builder with the features you requested: lxml. Do you need to install a parser library? 几经周折才知道是bs4调用了python自带的html解析器,我用的mac,默认安装的是python2,所以内置的解释器也是捆绑在python2上,而我学习的时候又自己安装了python3…

python3 bs4解析网页时报错: bs4.FeatureNotFound: Couldn’t find a tree builder with the features you requested: lxml. bs4调用了python自带的html解析器,python3没有html解释器,所以会报错.给python3装一个html解析器:pip3 install lxml…

安装beautifulsoup后,运行测试报错 from urllib import requestfrom bs4 import BeautifulSoup url = "http://www.baidu.com"rsp = request.urlopen(url)content = rsp.read() soup = BeautifulSoup(content, "lxml") print(soup.title.string) -----------------…

from bs4 import BeautifulSoupfrom urllib.request import urlopenimport re html = urlopen('http://****/').read().decode('utf-8')#print(html) soup = BeautifulSoup(html,features='lxml') #提示此行错误img_links = soup.find_all('img',{'src':re.compile('.*?\.jpg')…

Python报错总结: 常见异常 1,NameError: name 'a' is not defined:未定义函数名             2,IndentationError: unindent does not match any outer indentation level :代码缩进问题 3,IndentationError: unexpected indent:代码缩进问题 4,TypeError: %d format: a number is required, not st…

Python报错module 'scipy.misc' has no attribute 'imresize' 解决办法: 安装Pillow包,命令如下: pip install Pillow 然后重启python环境 Python报错module 'scipy.misc' has no attribute 'imread' 解决办法: 大部分解决办法都是说没有安装PIL第三方库,库名现在为Pillow,推荐直接使用命令pip install Pillow进行安装,但是我的问题并没有因此得到解决…

selenium python 报错如下: raise exception_class(message, screen, stacktrace)selenium.common.exceptions.WebDriverException: Message: Expected browser binary location, but unable to find binary in default location, no 'moz:firefoxOptions.binary' capability…

解决Python报错:local variable 'xxx' referenced before assignment(引) 解决Python报错:local variable 'xxx' referenced before assignment(引)   这个问题很囧,在外面定义了一个变量 xxx ,然后在python的一个函数里面引用这个变量,并改变它的值,结果报错local variable 'xxx' referenced before assignment,代码如下: view pl…

如题:python 报错 提示为 : wxPyDeprecationWarning: Using deprecated class PySimpleApp. 解决:将 wx.PySimpleApp() 替换为 wx.App(False) 即可. 参考:http://stackoverflow.com/questions/15144168/error-using-deprecated-class-pysimpleapp-after-removing-epd…