Linux 下升级python和安装pip

Linux版本升级：

1、首先确认Linux操作系统中自带的python 版本时候与自己所需要的版本一致

所有的python版本都在https://www.python.org/ftp/python/ 选择下载

2、 wget https://www.python.org/ftp/python/2.7.11/Python-2.7.11.tgz 进行下载

3、解压

tar -zxvf Python-2.7.11.tgz

进入Python-2.7.11目录输入./configure

make

make install

4、此时查看python版本还是系统默认的版本

执行：mv /usr/bin/python /usr/bin/python2.6

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

再次查看已经更新到你要安装的版本

Centos 6.4 安装Python 2.7 python-pip的详细步骤

. 准备工作

下载源码包

1	`wget http://python.org/ftp/python/2.7.3/Python-2.7.3.tar.bz2`

查看是否安装make工具

~#rpm -qa|grep make

automake-1.11.1-4.el6.noarch

make-3.81-20.el6.x86_64

如果没有安装make工具

1	`yum -y` `install` `gcc automake autoconf libtool` `make`

查看是否安装zlib库

~#rpm -qa|grep zlib

zlib-devel-1.2.3-29.el6.x86_64

zlib-1.2.3-29.el6.x86_64

安装zlib

1	`yum` `install` `zlib-devel`

检查是否安装ssl 库

~#rpm -qa|grep openssl

openssl-devel-1.0.1e-16.el6_5.x86_64

openssl-static-1.0.1e-16.el6_5.x86_64

openssl098e-0.9.8e-17.el6.centos.2.x86_64

openssl-1.0.1e-16.el6_5.x86_64

openssl-perl-1.0.1e-16.el6_5.x86_64

安装openssl

1	`yum` `install` `openssl*`

安装bzip2依赖库

1	`yum` `install` `-y` `bzip2*`

2. 编译安装

cp Python-2.7.3.tar.bz2 /usr/src/

tar -jxvf Python-2.7.3.tar.bz2

vi Modules/Setup.dist

找到

#SSL=/usr/local/ssl

#_ssl _ssl.c \

# -DUSE_SSL -I$(SSL)/include -I$(SSL)/include/openssl \

# -L$(SSL)/lib -lssl -lcrypto

......

#zlib zlibmodule.c -I$(prefix)/include -L$(exec_prefix)/lib -lz

把注释去掉

编译

./configure --prefix=/usr/local/python2.7

make all

make install

make clean

make distclean

安装成功

~#/usr/local/python2.7/bin/python2.7

Python 2.7.3 (default, Dec 18 2013, 15:43:35)

[GCC 4.4.7 20120313 (Red Hat 4.4.7-4)] on linux2

Type "help", "copyright", "credits" or "license" for more information.

>>>

1 2	`cd` `/usr/local/python2.7` `python setup.py` `install`

建立python2.7 软链

~#mv /usr/bin/python /usr/bin/python.bak

~#ln -s /usr/local/python2.7/bin/python2.7 /usr/bin/python2.7

~#ln -s /usr/bin/python2.7 /usr/bin/python

3. 解决yum无法使用的问题

~#yum update

There was a problem importing one of the Python modules

required to run yum. The error leading to this problem was:

No module named yum

Please install a package which provides this module, or

verify that the module is installed correctly.

It\'s possible that the above module doesn\'t match the

current version of Python, which is:

2.7.3 (default, Dec 18 2013, 15:43:35)

[GCC 4.4.7 20120313 (Red Hat 4.4.7-4)]

If you cannot solve this problem yourself, please go to

the yum faq at:

http://yum.baseurl.org/wiki/Faq

因为centos 6.4 下yum默认使用的是python2.6

vi /usr/bin/yum

----------------------------------------------------

#!/usr/bin/python

import sys

try:

import yum

except ImportError:

.......

修改为

1 2	`#!/usr/bin/python2.6` `........`

4. 安装python-pip工具

先安装setup-tools

wget https://pypi.python.org/packages/2.7/s/setuptools/setuptools-0.6c11-py2.7.egg --no-check-certificate

chmod +x setuptools-0.6c11-py2.7.egg

sh setuptools-0.6c11-py2.7.egg

安装pip

wget https://pypi.python.org/packages/source/p/pip/pip-1.3.1.tar.gz --no-check-certificate

cp pip-1.3.1.tar.gz /usr/src/

tar zxvf pip-1.3.1.tar.gz

cd pip-1.3.1

python setup.py install

ln -s /usr/local/python2.7/bin/pip /usr/bin/pip