centos 7 安装 BeautifulSoup 和requests

• 安装beautifulsoup

wget https://www.crummy.com/software/BeautifulSoup/bs4/download/4.5/beautifulsoup4-4.5.1.tar.gz

tar xvzf beautifulsoup4-4.5.1.tar.gz

cd beautifulsoup4-4.5.1

python2.7 setup.py install

• 安装requests

yum install python-requests 【此路不同，装完没反应】

只能装pip后再安装所需第三方库

wget https://bootstrap.pypa.io/get-pip.py

python  get-pip.py

pip install requests

• 安装 lxml ，解析html网页

pip install lxml