Centos上安装Python3.4

yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make

wget http://mirrors.sohu.com/python/3.4.1/Python-3.4.1.tar.xz[/code] 
3 编译安装

tar –xvf Python-3.4.3.tar.xz
cd Python-3.4.3
./configure --prefix=/usr/local
make
make install


4 备份旧版python

mv /usr/bin/python /usr/bin/pythonbak


5 创建新python软连接

ln -sf /usr/local/bin/python3.4 /usr/bin/python


6 修改yum python 版本

#!/usr/bin/python2.6
import sys
..............省略


7  安装 libxml

yum install libxml2-devel libxslt-devel
/usr/local/python34/bin/pip3 install lxml


8 安装 PyMySQL，PyQuery，bs4，setuptools

/usr/local/python34/bin/pip3 install mysql-connector-python --allow-external mysql-connector-python
/usr/local/python34/bin/pip3 install mysql-connector
/usr/local/python34/bin/pip3 install PyMySQL
/usr/local/python34/bin/pip3 install BeautifulSoup4
/usr/local/python34/bin/pip3 install PyQuery
wget https://bootstrap.pypa.io/ez_setup.py -O - | python