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…
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…
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…
[BUG回顾] 在学习Python爬虫时,运Pycharm中的文件出现了这样的报错: bs4.FeatureNotFound: Couldn’t find a tree builder with the features you requested: lxml. 也就是说lxml用不了,因此使用Anaconda Prompt打算安装一下. 结果执行pip install lxml时告知已经安装过了,但是运行还是一样的报错. [解决方案] 原因是电脑安装了Anaconda3(python3.7),…
执行shell脚本时提示bad interpreter:No such file or directory的解决办法 故障现象:在终端直接cd /var正常,在shell脚本中执行则报错.原因是脚本是在windows平台下写的,换行符与Linux不同,造成脚本不能正确执行 出现bad interpreter:No such file or directory(没有那个文件或目录)的原因,是文件格式的问题.这个文件是在Windows下编写的.换行的方式与Unix不一样,但是在vim下面如果不Set…