config virtualevwrapper on bashrc or zshrc

config virtualevwrapper

#set where virutal environments will live
export WORKON_HOME=$HOME/.Envs
# ensure all new environments are isolated from the site-packages directory
export VIRTUALENVWRAPPER_VIRTUALENV_ARGS='--no-site-packages'
# use the same directory for virtualenvs as virtualenvwrapper
export PIP_VIRTUALENV_BASE=$WORKON_HOME
# makes pip detect an active virtualenv and install to it
export PIP_RESPECT_VIRTUALENV=true
if [[ -r /usr/local/bin/virtualenvwrapper.sh ]]; then
  source /usr/local/bin/virtualenvwrapper.sh
else
  echo "WARNING: Can't find virtualenvwrapper.sh"
fi