1）编译安装python2.7
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[root@mysql-master ~]
# python -V
Python 2.6.6
查看python的版本信息（之前的yum是通过yum安装的）
[root@mysql-master src]
# wget https://www.python.org/ftp/python/2.7.9/Python-2.7.9.tar.xz
[root@mysql-master src]
# file Python-2.7.9.tar.xz
Python-2.7.9.
tar
.xz: xz compressed data
[root@mysql-master src]
# xz -d Python-2.7.9.tar.xz
[root@mysql-master src]
# ls
debug kernels Python-2.7.9.
tar
[root@mysql-master src]
# tar -xf Python-2.7.9.tar
[root@mysql-master src]
# cd Python-2.7.9
[root@mysql-master Python-2.7.9]
# ./configure
[root@mysql-master Python-2.7.9]
# make && make install
[root@mysql-master Python-2.7.9]
# echo $?
0
[root@mysql-master Python-2.7.9]
# /usr/local/bin/python2.7 -V
Python 2.7.9
[root@mysql-master Python-2.7.9]
# mv /usr/bin/python /usr/bin/python2.6
mv
：是否覆盖
"/usr/bin/python2.6"
？
yes
[root@mysql-master Python-2.7.9]
# ln -s /usr/local/bin/python2.7 /usr/bin/python
[root@mysql-master Python-2.7.9]
# python -V
Python 2.7.9
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2）调整yum的配置
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因为yum使用会调用python的信息，避免重新安装python后，yum出现报错，编辑yum的文件：
[root@mysql-master Python-2.7.9]
# sed -i 's@#!/usr/bin/python@#!/usr/bin/python2.6@g' /usr/bin/yum
[root@mysql-master Python-2.7.9]
# cat /usr/bin/yum |head
#!/usr/bin/python2.6
import
sys
try:
import
yum
except ImportError:
print >> sys.stderr,
""
"\
There was a problem importing one of the Python modules
required to run yum. The error leading to this problem was:
%s
[root@mysql-master Python-2.7.9]
# python
Python 2.7.9 (default, Nov 16 2016, 19:53:47)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-16)] on linux2
Type
"help"
,
"copyright"
,
"credits"
or
"license"
for
more
information.
>>> print
"hello,world"
hello,world
到此，python2.7的基本安装也完成了。
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本文转自 冰冻vs西瓜 51CTO博客，原文链接：http://blog.51cto.com/molewan/1873670，如需转载请自行联系原作者
