1. 编译安装python
1.1 下载 python 源代码
$wget #/ftp/python/3.6.5/Python-3.6.5.tgz$tar -zxvf Python-3.6.5.tgz; cd Python-3.6.5/
1.2 安装 zlib 相关依赖
$sudo yum -y install zlib*
1.3 配置生成 makefile
$./configure --prefix=/usr/local --enable-shared LDFLAGS=“-Wl,-rpath /usr/local/lib” --enable-unicode=ucs4 --enable-optimizations
1.4 编译安装 python
$make$sudo make altinstall $sudo ln -sv /usr/local/bin/python3.6 /usr/local/bin/python$sudo unlink /usr/bin/python; sudo ln -sv /usr/local/bin/python /usr/bin/python$sudo unlink /home/tops/bin/python; sudo ln -sv /usr/local/bin/python /home/tops/bin/python
升级 python 之后可能会因为语法不一致导致依赖于旧版本 python 的软件工作不正常
例如运行 yum 可能会出现如下错误
$ yum File “/usr/bin/yum”, line 30 except KeyboardInterrupt, e: SyntaxError: invalid syntax
解决的办法:
1. 升级 yum
2. 或者修改 yum 使用的语法解释器
修改 #!/usr/bin/python 为 #!/usr/bin/python2.7
3. 在编译VIM之后把 /home/tops/bin/python 软连接回 python2.7
#Sctipt to switch to python 3$cat ~/rain/p3.sh sudo unlink /home/tops/bin/pythonsudo ln -sv /usr/local/bin/python /home/tops/bin/pythonls -al /home/tops/bin/python sudo unlink /usr/bin/python?sudo ln -sv /usr/local/bin/python /usr/bin/python?ls -al /usr/bin/python ################################# #Sctipt to switch to python 2$cat ~/rain/p2.sh sudo mv /home/tops/bin/python /home/tops/bin/python-baksudo ln -sv /home/tops/bin/python2 /home/tops/bin/pythonls -al /home/tops/bin/python sudo mv /usr/bin/python /usr/bin/python-bak?sudo ln -sv /usr/bin/python2 /usr/bin/python?ls -al /usr/bin/python
2. 编译安装VIM
2.1 安装相关依赖,如果可以直接安装 python可以省去前面编译过程
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