.bashrc that has config for virtual environments to be required and a nice little script 'eve' that tries to activate python virtualenv and if not prints a informative error

gistfile1.txt

export VIRTUALENVWRAPPER_PYTHON=/usr/bin/python2.7

MYSQL=/usr/local/mysql/bin
MYBIN=~/bin
export PATH=$PATH:$MYBIN
export PATH=$PATH:$MYSQL
export DYLD_LIBRARY_PATH=/usr/local/mysql/lib:$DYLD_LIBRARY_PATH


# Colors
RED='\033[0;31m'
GREEN='\033[0;32m'
NC='\033[0m' # No Color


###########################
#
# Python Settings
#
###########################

# Python VirutalEnv Setup
# https://hackercodex.com/guide/python-development-environment-on-mac-osx/
#
# Override requirement for a virtualenv to be set for pip
# (see ~/Library/Application\ Support/pip/pip.conf)
# (for upgrading system ones and other tools that aren't in a virtualenv)
#
# Example:
#   gpip install --upgrade pip setuptools wheel virtualenv
#
gpip(){
   PIP_REQUIRE_VIRTUALENV="" pip "$@"
}



pve() {
    # printf "In eve command\n\n"

    # dir_name=`basename $PWD`
    source bin/activate 2>/dev/null

    # Check to see if command succeeded.
    if [ "$?" = "0" ]; then
        printf "\n${GREEN}Enjoy working on $a${NC}\n\n\n"
    elif [ $? = 127 ]; then
        printf "\n${RED}You are not in a python virtual environment directory.${NC}\n\n"
    else
        printf "\n${RED}You are not in a python virtual environment directory.${NC}\n\n"
    fi
}

dpve() {
    deactivate 2>/dev/null

    # printf "Status is: "$?

    # Check to see if command succeeded.
    if [ "$?" = "0" ]; then
        printf "\n${GREEN} Goodbye! ${NC}\n\n"
    elif [ "$?" = "127" ]; then
        printf "\n${RED}Python Virtual Environment not currently active.${NC}\n\n"
    else
        printf "\n${RED}Python Virtual Environment not currently active.${NC}\n\n"
    fi

}


##############################################
#   ANSI COLOR CODES
#
#
#   Black        0;30     Dark Gray     1;30
#   Red          0;31     Light Red     1;31
#   Green        0;32     Light Green   1;32
#   Brown/Orange 0;33     Yellow        1;33
#   Blue         0;34     Light Blue    1;34
#   Purple       0;35     Light Purple  1;35
#   Cyan         0;36     Light Cyan    1;36
#   Light Gray   0;37     White         1;37
#
#
##############################################

Docs

The eve function is run by typing eve on command line. If you are in a python virtual environment directory it will activate it. If you are not, then it will give you a nice error message.

The dpve function is run by typing dpve on the command line. If you are in a python virtual environment directory it will deactivate it. If you are not, then it will give you a nice error message.