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python版本升级及pip部署方法

 

Python版本升级

 

CentOS 6.3自带的Python版本为2.6,首先需要升级到2.7版本。由于旧版本的Python已被深度依赖,所以不能卸载原有的Python,只能全新安装。

 1.下载Python-2.7.4.tgz

wget http://python.org/ftp/python/2.7.4/Python-2.7.4.tgz

2. 解压安装,命令如下:

1 tar -xvf Python-2.7.4.tgz
2 cd Python-2.7.4
3 ./configure --prefix=/usr/local/python2.7
4 make
5 make install

3. 创建链接来使系统默认python变为python2.7

12

​mv /usr/bin/python /usr/bin/python.old​​​​ln -s /usr/local/python2.7/bin/python2.7 /usr/bin/python​

4. 查看Python版本

python –V

5. 修改yum配置(否则yum无法正常运行)

vim /usr/bin/yum

将第一行的#!/usr/bin/python修改为系统原有的python版本地址#!/usr/bin/python2.6

至此CentOS6.3系统Python已成功升级至2.7.4版本

Linux下python2.7安装pip

首先下载并安装setuptools:

#wget --no-check-certificate https://bootstrap.pypa.io/ez_setup.py
#python ez_setup.py --insecure

再到​​python官网​​下载pip安装包,解压到某个位置,我这里下载的是9.0.0版本,然后就可以安装了:

wget https://pypi.python.org/packages/11/b6/abcb525026a4be042b486df43905d6893fb04f05aac21c32c638e939e447/pip-9.0.1.tar.gz#md5=35f01da33009719497f01a4ba69d63c9
tar -xf pip-9.0.1.tar.gz
cd pip-9.0.1
python setup.py install

另一种安装pip方法:

Pip是一个安装和管理python包的工具。

安装方法如下:

1. 下载pip,地址 https://bootstrap.pypa.io/get-pip.py

2. 执行安装命令

12

​yum install setuptool zlib* -y​​​​python ​​​​get​​​​-pip.py​

3. 创建连接(否则会报错提示“命令不存在”)

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

测试:

12345678

​[root@localhost ~]​​​​# pip install redis​​​​Collecting redis​​​​/​​​​usr​​​​/​​​​local​​​​/​​​​python2.​​​​7​​​​/​​​​lib​​​​/​​​​python2.​​​​7​​​​/​​​​site​​​​-​​​​packages​​​​/​​​​pip​​​​/​​​​_vendor​​​​/​​​​requests​​​​/​​​​packages​​​​/​​​​urllib3​​​​/​​​​util​​​​/​​​​ssl_.py:​​​​90​​​​: InsecurePlatformWarning: A true SSLContext ​​​​object​​​​is​​​​not​​​​available. This prevents urllib3 ​​​​from​​​​configuring SSL appropriately ​​​​and​​​​may cause certain SSL connections to fail. For more information, see https:​​​​/​​​​/​​​​urllib3.readthedocs.org​​​​/​​​​en​​​​/​​​​latest​​​​/​​​​security.html​​​​#insecureplatformwarning.​​​​InsecurePlatformWarning​​​​Downloading redis​​​​-​​​​2.10​​​​.​​​​5​​​​-​​​​py2.py3​​​​-​​​​none​​​​-​​​​any​​​​.whl (​​​​60kB​​​​)​​​​100​​​​%​​​​|​​​​################################| 61kB 759kB/s​​​​Installing collected packages: redis​​​​Successfully installed redis​​​​-​​​​2.10​​​​.​​​​5​​​​  ​

至此pip安装完成!

如果安装pip时报如下错误:ImportError: cannot import name HTTPSHandle

执行 yum install sqlite-devel

 



Python版本升级

 

CentOS 6.3自带的Python版本为2.6,首先需要升级到2.7版本。由于旧版本的Python已被深度依赖,所以不能卸载原有的Python,只能全新安装。

 1.下载Python-2.7.4.tgz

wget http://python.org/ftp/python/2.7.4/Python-2.7.4.tgz

2. 解压安装,命令如下:

1 tar -xvf Python-2.7.4.tgz
2 cd Python-2.7.4
3 ./configure --prefix=/usr/local/python2.7
4 make
5 make install

3. 创建链接来使系统默认python变为python2.7

12

​mv /usr/bin/python /usr/bin/python.old​​​​ln -s /usr/local/python2.7/bin/python2.7 /usr/bin/python​

4. 查看Python版本

python –V

5. 修改yum配置(否则yum无法正常运行)

vim /usr/bin/yum

将第一行的#!/usr/bin/python修改为系统原有的python版本地址#!/usr/bin/python2.6

至此CentOS6.3系统Python已成功升级至2.7.4版本

Linux下python2.7安装pip

首先下载并安装setuptools:

#wget --no-check-certificate https://bootstrap.pypa.io/ez_setup.py
#python ez_setup.py --insecure

再到​​python官网​​下载pip安装包,解压到某个位置,我这里下载的是9.0.0版本,然后就可以安装了:

wget https://pypi.python.org/packages/11/b6/abcb525026a4be042b486df43905d6893fb04f05aac21c32c638e939e447/pip-9.0.1.tar.gz#md5=35f01da33009719497f01a4ba69d63c9
tar -xf pip-9.0.1.tar.gz
cd pip-9.0.1
python setup.py install

另一种安装pip方法:

Pip是一个安装和管理python包的工具。

安装方法如下:

1. 下载pip,地址 https://bootstrap.pypa.io/get-pip.py

2. 执行安装命令

12

​yum install setuptool zlib* -y​​​​python ​​​​get​​​​-pip.py​

3. 创建连接(否则会报错提示“命令不存在”)

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

测试:

12345678

​[root@localhost ~]​​​​# pip install redis​​​​Collecting redis​​​​/​​​​usr​​​​/​​​​local​​​​/​​​​python2.​​​​7​​​​/​​​​lib​​​​/​​​​python2.​​​​7​​​​/​​​​site​​​​-​​​​packages​​​​/​​​​pip​​​​/​​​​_vendor​​​​/​​​​requests​​​​/​​​​packages​​​​/​​​​urllib3​​​​/​​​​util​​​​/​​​​ssl_.py:​​​​90​​​​: InsecurePlatformWarning: A true SSLContext ​​​​object​​​​is​​​​not​​​​available. This prevents urllib3 ​​​​from​​​​configuring SSL appropriately ​​​​and​​​​may cause certain SSL connections to fail. For more information, see https:​​​​/​​​​/​​​​urllib3.readthedocs.org​​​​/​​​​en​​​​/​​​​latest​​​​/​​​​security.html​​​​#insecureplatformwarning.​​​​InsecurePlatformWarning​​​​Downloading redis​​​​-​​​​2.10​​​​.​​​​5​​​​-​​​​py2.py3​​​​-​​​​none​​​​-​​​​any​​​​.whl (​​​​60kB​​​​)​​​​100​​​​%​​​​|​​​​################################| 61kB 759kB/s​​​​Installing collected packages: redis​​​​Successfully installed redis​​​​-​​​​2.10​​​​.​​​​5​​​​  ​

至此pip安装完成!

如果安装pip时报如下错误:ImportError: cannot import name HTTPSHandle

执行 yum install sqlite-devel

 


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