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学习过程中安装virtualenvwrapper和virtualenv产生了如下问题，记录一下解决方案
根据百度上面的博客安装这两个模块包，需要修改配置文件，修改好后，在source命令后
# Python Virtualenv Settings
export WORKON_HOME=~/.virtualenvs
export VIRTUALENVWRAPPER_PYTHON=/usr/bin/python3
# 指定virtualenv的路径
export VIRTUALENVWRAPPER_VIRTUALENV=~/.local/bin/virtualenv
source ~/.local/bin/virtualenvwrapper.sh
source ~/.bashrc
出现了如下的错误：
-bash: /usr/bin/python3: 没有那个文件或目录
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=/usr/bin/python3 and that PATH is
set properly
?这是由于virtualenvwrapper_python的路径配置的不对，个人的系统文件路径不一样，都根据网上的修改，由于不太懂，很容易出问题，我就是其中一个
????????由于我的Python3路径通过软连接现在的准确路径是/usr/bin/python,不是网上大家的usr/bin/python3,这个可以通过which python这个命令查看个人的路径
? ? ? ? 修改好这个问题后，再source ~/.bashrc配置文件使其生效，发现不报错了，进入下一步，通过mkvirtualenv创建虚拟环境，发现又报错了
[yin@localhost myproject]$ mkvirtualenv temp
which: no virtualenv in (/usr/local/python/python3/lib/python3.7/site-packages)
ERROR: virtualenvwrapper could not find /usr/local/python/python3/lib/python3.7/site-packages/virtualenv in your path
?这里的报错和上面问题一样，是文件的路径不对，这个是由于virtualenvwrapper_virtualenv这里的配置不对，可以通过如下命令查到自己的路径
[yin@localhost ~]$ sudo find / -name virtualenv
/usr/local/python/python3/bin/virtualenv
/usr/local/python/python3/lib/python3.7/site-packages/virtualenv
/home/yin/.local/share/virtualenv
[yin@localhost ~]$ sudo find / -name virtualenvwrapper
/usr/local/python/python3/lib/python3.7/site-packages/virtualenvwrapper
?然后根据实际的地址将配置文件修改完成如下
# Python Virtualenv Settings
export WORKON_HOME=~/.virtualenvs
export VIRTUALENVWRAPPER_PYTHON=/usr/bin/python
# 指定virtualenv的路径
export VIRTUALENVWRAPPER_VIRTUALENV=/usr/local/python/python3/bin/virtualenv
source /usr/local/python/python3/bin/virtualenvwrapper.sh
?至此，安装顺利结束
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