centos7安装virtualenv

centos环境

• python3.6
• centos7

virtualenv安装

1、安装virtualenv和virtualenvwrapper工具

# 可以在任何位置安装
 pip install virtualenv
 # pip install virtualenv -i https://mirrors.aliyun.com/pypi/simple/  #使用镜像下载
 pip install virtualenvwrapper
 # pip install virtualenvwrapper -i https://mirrors.aliyun.com/pypi/simple/# 使用镜像下载
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2、查看虚拟环境文件夹

cd ~
ls -la # 查看是否存在.envs 或者.virtualenv文件夹
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若不存在该文件夹，则自主创建该文件夹

mkdir .vens
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3、配置.bashrc文件
打开~/.bashrc添加一下信息

...
export WORKON_HOME=$HOME/.envs  # 指定虚拟环境的主目录
export VIRTUALENVWRAPPER_VIRTUALENV=/usr/bin/virtualenv  # 虚拟环境安装位置
VIRTUALENVWRAPPER_PYTHON=/usr/bin/python3  # Python3 解释器位置
source /usr/local/bin/virtualenvwrapper.sh  # 虚拟环境管理工具位置
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执行source .bashrc

source .bashrc
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• 路径获取方式

  • virtualenvwrapper.sh

  [root@localhost ~]# whereis virtualenvwrapper.sh
  virtualenvwrapper: /usr/local/bin/virtualenvwrapper.sh
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  • virtualenv

  [root@localhost ~]# whereis virtualenv
  virtualenv: /usr/bin/virtualenv
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4、验证
创建虚拟环境

mkvirtualenv env1
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virtualenv问题

问题1
报错信息：
which: no virtualenv in (/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin)
ERROR: virtualenvwrapper could not find virtualenv in your path

cd /usr/bin/
ls -al | grep virtualenv
cd /usr/local/python3/bin/
ln virtualenv /usr/bin/virtualenv
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问题2
/bin/python: No module named virtualenvwrapper
virtualenvwrapper.sh: There was a problem running the initialization hooks.

If Python could not import the module virtualenvwrapper.hook_loader,
check that virtualenvwrapper has been installed for
VIRTUALENVWRAPPER_PYTHON=/bin/python and that PATH is
set properly.

打开virtualenvwrapper.sh文件
将Python改为Python3

常用命令

# 创建虚拟环境
mkvirtualenv env1
# 退出虚拟环境
deactivate

# 查看虚拟环境
workon

# 进入虚拟环境
workon env1

# 删除虚拟环境
rmvirtualenv env1
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virtualenv卸载

pip uninstall virtualenv
pip uninstall virtualenvwarpper
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