Linux安装Python2.7环境

Linux将Python2.6升级至2.7

查看当前Python版本

# python -V
Python 2.6.6

下载Python2.7.5源码

# wget http://python.org/ftp/python/2.7.5/Python-2.7.5.tgz

解压源代码包

# tar xvf Python-2.7.5.tgz

进入解压目录并安装

# cd Python-2.7.5
# ./configure
# make all
# make install
# make clean
# make distclean

将系统默认的python设置为python2.7.5

# rm /usr/bin/python
# ln -s /usr/local/bin/python2.7 /usr/bin/python

检查Python版本

# python -V
Python 2.7.5

解决yum不能运行的问题

因为yum是依赖python2.6.6运行的，所以需要对yum做一些修改

# vim /usr/bin/yum
将第一行的#!/usr/bin/python修改为#!/usr/bin/python2.6

遇到问题

ImportError: cannot import name HTTPSHandler

原因在于openssl,openssl-devel两个文件包未正确安装。用下来的命令来安装：

yum install openssl -y
yum install openssl-devel -y

安装完成后，重新安装python:
# cd Python-2.7.5
# ./configure
# make all
# make install
# make clean
# make distclean

RuntimeError: Compression requires the (missing) zlib module

yum install zlib

yum install zlib-devel

安装完成后，重新编译 python2.7【不需要删除，只需要重新编译，make，安装就行了】

# cd Python-2.7.5
# ./configure
# make all
# make install
# make clean
# make distclean

缺少setuptools包

下载setuptools包

# wget http://pypi.python.org/packages/source/s/setuptools/setuptools-2.0.tar.gz

解压setuptools包

# tar zxvf setuptools-2.0.tar.gz
# cd setuptools-2.0

编译setuptools

# python setup.py build

开始执行setuptools安装

# python setup.py install

pip安装mysql-python报致命错误：my_config.h：没有那个文件或目录

只需要在 yum install mysql-devel

安装MySQLdb

下载MySQL-python-1.2.3.tar.gz，解压缩

进入下载MySQL-python-1.2.3，编辑site.cfg，把mysql_config那一行取消注释，并改成你自己系统安装的mysql_config路径

python setup.py install