pyenv + virtualenv all the things

# should pick up pyenv as dep
brew install pyenv-virtualenv 

# add to your .bash_profile or other .profile
eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"

# List available pythons versions
$ pyenv install -l 

# Pick a base version and install it
$ pyenv install 2.7.12

# source your profile to rehash
$ source ~/.bash_profile

# create a new $COOLAPP specific virtualenv
$ pyenv virtualenv 2.7.12 my-sqlmap-env-2.7.12

# pull down your cool app
$ cd ~/bin
$ git clone git@github.com:sqlmapproject/sqlmap.git --depth=1

# set the virtualenv for this app via 'pyenv local'
$ python --version
Python 2.7.10
$ cd ~/bin/sqlmap
$ pyenv local my-sqlmap-env-2.7.12
$ python --version
Python 2.7.12

(my-sqlmap-env-2.7.12) :~/bin/sqlmap$python sqlmap.py 
         _
 ___ ___| |_____ ___ ___  {1.0.7.13#dev}
|_ -| . | |     | .'| . |
|___|_  |_|_|_|_|__,|  _|
      |_|           |_|   http://sqlmap.org

Usage: python sqlmap.py [options]

sqlmap.py: error: missing a mandatory option (-d, -u, -l, -m, -r, -g, -c, -x, --wizard, --update, --purge-output or --dependencies), use -h for basic or -hh for advanced help