Script to fix all virtualenvwrapper virtual environments after Brew python upgrade

fixvirtualenvs

#!/bin/bash
# Relies on having fixvirtualenv : https://gist.github.com/nathairtras/7b2df168d9a919b4e644b1d7da0aa05d
# Ensure virtualenv script exists
if [ -z $VIRTUALENVWRAPPER_SCRIPT ]
  then
    echo "VirtualEnvWrapper Script Environment Variable Not Found.  Please run `pip3 install virtualenvwrapper` to continue."
    exit 1
fi

# Ensure WORKON_HOME set
if [ -z $WORKON_HOME ]
  then
    echo "$WORKON_HOME is not set.  Please ensure this is set in your environment before continuing to ensure correct execution."
    exit 1
fi

source $VIRTUALENVWRAPPER_SCRIPT

for venv in `workon`
do
  workon $venv
  python -c "" > /dev/null 2>&1
  BADENV=$?
  deactivate
  if [ $BADENV -ne 0 ]
    then
      fixvirtualenv $venv
  fi
done