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[原创]Linux更新python版本

2017-11-08

[原创]Linux更新python版本

Linux默认版本2.6,更新2.7版本的简单汇总

Step 1 – 安装 GCC

# yum install gcc opensll-devel bzip2-devel

Step 2 – 下载

# cd /usr/src

# wget https://www.python.org/ftp/python/2.7.14/Python-2.7.14.tgz

Step 3 – 解压编译

# chmod a+x Python-2.7.14.tgz

# tar xzf Python-2.7.14.tgz

# cd Python-2.7.14

# ./configure --enable-optimizations

# make altinstall

Step 4 – 检查版本

# /usr/local/bin/python2.7 -V

# python -V

Step 5 – 安装pip

# curl "https://bootstrap.pypa.io/get-pip.py" -o "get-pip.py"

# python2.7 get-pip.py

默认python版本的指定:

# cd /usr/bin

# ls -l python*

# mv python python.2.6.6                                                                           

# ls -ltr /usr/local/bin/python2.7                                                                 

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

·

错误处理

描述:执行yum出错(更新python版本和yum冲突)

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:
2.7.14 (default, Nov 27 2017, 21:30:20) 
[GCC 4.4.7 20120313 (Red Hat 4.4.7-18)]

If you cannot solve this problem yourself, please go to 
the yum faq at:
  http://yum.baseurl.org/wiki/Faq

原因: 之前yum是用python2.6版本的,所以yum的命令脚本里面指定回2.6版本的python即可

解决如下:(声明指定:/usr/bin/python.2.6.6)

# which yum
/usr/bin/yum
# cat /usr/bin/yum | head -5
#!/usr/bin/python.2.6.6
import sys
try:
	import yum
except ImportError:
# 

++++++++++++++++ EOF LinHong ++++++++++++++++


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