安装python3
参考：https://www.yuzhi100.com/tutorial/centos/centos-anzhuang-python36
CentOS7系统自带的Python版本是Python2.7，如需使用Python3.6，需要自行安装Python3.6。
(1)安装IUS软件源
1
2
3
4
| #安装EPEL依赖
sudo yum install epel-release
#安装IUS软件源
sudo yum install https://centos7.iuscommunity.org/ius-release.rpm
|
(2)安装Python3.6
1
| sudo yum install python36u
|
安装Python3完成后的shell命令为python3.6，为了使用方便，创建一个到python3的符号链接
1
2
3
| # rm /bin/python
# sudo ln -s /bin/python3.6 /bin/python
sudo ln -s /bin/python3.6 /bin/python3
|
(3)安装pip3
安装完成python36u并没有安装pip，安/装pip
1
| sudo yum install python36u-pip
|
安装pip完成后的shell命令为pip3.6，为了使用方便，创建一个到pip3的符号链接
1
2
| sudo ln -s /bin/pip3.6 /bin/pip
sudo ln -s /bin/pip3.6 /bin/pip3
|
(4) 遇到的问题
1、使用yum命令报错File “/usr/bin/yum”, line 30 except KeyboardInterrupt, e:
1
2
3
4
5
6
7
8
| [root@10-41-140-1 ~]# yum install zsh
File "/usr/bin/yum", line 30
except KeyboardInterrupt, e:
^
SyntaxError: invalid syntax
[root@10-41-140-1 ~]# rm /bin/python
rm: remove symbolic link ‘/bin/python’? y
[root@10-41-140-1 ~]# sudo ln -s /bin/python2.7 /bin/python
|
问题出现原因：
yum包管理是使用python2.x写的，将python2.x升级到python3.1.3以后，由于python版本语法兼容性导致问题出现
解决办法： python软连接到指向python2.7
参考：https://blog.csdn.net/zsl10/article/details/52315319
安装zsh
参考:https://www.jianshu.com/p/556ff130fc65
(1)安装zsh包
(2)切换默认shell为zsh
(3)重启终端，让修改的配置生效
(4)安装oh-my-zsh
4.1 安装git
4.2 通过curl安装
1
| curl -L https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh | sh
|
4.2 或者通过wget安装
1
| wget https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh -O - | sh
|
4.3 修改oh-my-zsh主题
查看oh my zsh主题
修改主题
可以看到默认的主题是ZSH_THEME=”robbyrussell” 改成自己喜欢的即可.
4.4 重启终端，主题生效
虚拟环境
(1) 安装virtualenv相关依赖
1
2
| sudo pip install virtualenv
sudo pip install virtualenvwrapper
|
(2)修改 .zshrc
1
2
3
| ➜ ~ where is virtualenvwrapper.sh
is not found
/usr/bin/virtualenvwrapper.sh
|
1
2
3
4
| 复制内容,进入.zshrc
export VIRTUALENVWRAPPER_PYTHON=/usr/bin/python3
export WORKON_HOME=$HOME/.virtualenvs
source /usr/bin/virtualenvwrapper.sh
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
| ➜ ~ vim .zshrc
➜ ~ source .zshrc
virtualenvwrapper.user_scripts creating /root/.virtualenvs/premkproject
virtualenvwrapper.user_scripts creating /root/.virtualenvs/postmkproject
virtualenvwrapper.user_scripts creating /root/.virtualenvs/initialize
virtualenvwrapper.user_scripts creating /root/.virtualenvs/premkvirtualenv
virtualenvwrapper.user_scripts creating /root/.virtualenvs/postmkvirtualenv
virtualenvwrapper.user_scripts creating /root/.virtualenvs/prermvirtualenv
virtualenvwrapper.user_scripts creating /root/.virtualenvs/postrmvirtualenv
virtualenvwrapper.user_scripts creating /root/.virtualenvs/predeactivate
virtualenvwrapper.user_scripts creating /root/.virtualenvs/postdeactivate
virtualenvwrapper.user_scripts creating /root/.virtualenvs/preactivate
virtualenvwrapper.user_scripts creating /root/.virtualenvs/postactivate
virtualenvwrapper.user_scripts creating /root/.virtualenvs/get_env_details
➜ ~
|
(3) 测试是否成功
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
| ➜ ~ mkvirtualenv test01 -p python3 # -p 参数指定 python 版本
Using base prefix '/usr'
No LICENSE.txt / LICENSE found in source
New python executable in /root/.virtualenvs/test01/bin/python3.6
Also creating executable in /root/.virtualenvs/test01/bin/python
Installing setuptools, pip, wheel...
done.
virtualenvwrapper.user_scripts creating /root/.virtualenvs/test01/bin/predeactivate
virtualenvwrapper.user_scripts creating /root/.virtualenvs/test01/bin/postdeactivate
virtualenvwrapper.user_scripts creating /root/.virtualenvs/test01/bin/preactivate
virtualenvwrapper.user_scripts creating /root/.virtualenvs/test01/bin/postactivate
virtualenvwrapper.user_scripts creating /root/.virtualenvs/test01/bin/get_env_details
(test01) ➜ ~
(test01) ➜ ~ deactivate
➜ ~ workon test01
(test01) ➜ ~
|
(4)确定下虚拟环境内，python的路径，为在supervisor配置文件里使用
1
2
3
4
5
| (test01) ➜ ~ where is python
is not found
/root/.virtualenvs/test01/bin/python
/usr/bin/python
(test01) ➜ ~
|
