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

?

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~#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

 

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~#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

 

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~#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

 

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cp Python-2.7.3.tar.bz2 /usr/src/ tar -jxvf Python-2.7.3.tar.bz2 vi Modules/Setup.dist

找到

 

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#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

 

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./configure --prefix=/usr/local/python2.7 make all make install make clean make distclean

安装成功

 

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~#/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

 

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~#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

 

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~#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

 

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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

 

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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

 

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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