将soup = BeautifulSoup(html, 'xml')修改成如下形式即可: soup = BeautifulSoup(html, 'html.parser')
执行python 爬虫脚本时提示bs4.FeatureNotFound: Couldn't find a tree builder with the features you requested: lxml. Do you need to install a parser library? from bs4 import BeautifulSoup from urllib.request import urlopen import re html = urlopen('http://***/').read().decode('utf-8') ...
又出现错误:如下 bs4.FeatureNotFound: Couldn't find a tree builder with the features you requested: lxml. Do you need to install a parser library? bs4.FeatureNotFound 解决方法: 首先安装'pip install wheel' https://www.zhihu.com/question/49221958/answer/115712155 pip install wheel 安装pip ins...
又出现错误:如下bs4.FeatureNotFound: Couldn't find a tree builder with the features you requested: lxml. Do you need to install a parser library? 解决方法: 首先安装’pip install wheel’https://www.zhihu.com/question/49221958/answer/115712155 安装pip install lxml 可参考链接1:https://www.zhih...
Building a complete Python installation requires the use of various additional third-party libraries, depending on your build platform and configure options. Not all standard library modules are buildable or usable on all platforms. Refer to theInstall dependenciessection of theDeveloper Guidefor current...
The examples directory includes a simple SQL parser, simple CORBA IDL parser, a config file parser, a chemical formula parser, and a four- function algebraic notation parser, among many others. Documentation There are many examples in the online docstrings of the classes and methods in pyparsing...
On the offline computer, install the pgympy Bayesian network library: cd /home/sifsuser/pythoninstall/ unzip /home/sifsuser/pythoninstall/dev.zip cd /home/sifsuser/pythoninstall/pgmpy-dev/ /usr/local/bin/python3.5 setup.py install On the offline computer, install spaCy. ...
conda install -c conda-forge parse 安装完毕后,在你的代码里使用from parse import *就可以直接使用这个库的方法了。 特性与用法 parse的API与Python Regular Expressions近似,主要就是parse,search及findall这三个方法。一些基础的使用可以通过parse的文档来了解。
cssutils - ACSS library for Python., MarkupSafe - Implements a XML/HTML/XHTMLbleach,漂白,基于HTML的白名单函数库。 xmltodict,类似JSON的XML工具包。 xhtml2pdf,HTML / CSS格式转换器,看生成pdf文档。 untangle,把XML文档,转换为Python对象,方便访问。
easy_install——软件包管理系统,提供一个标准的分配Python软件和 函式库的格式。是一个附带设置工具的模块,和一个第三方函式库。旨在加快Python函式库的分配程式的速度。类似Ruby语言的RubyGems 。 conda——跨平台,二进制软件包管理器。, Curdling——一个管理Python包的命令行工具。 wheel——Python发行的新标准...