.pythonrc

# encoding: utf-8
import glob
import os
import sys

# indicate how many '/' there are in the root dir of a webapp
WEBAPPS_DIR_COUNT = 4

# retrieve the current working dir and count '/'
cwd = os.getcwd()
cwd_count = cwd.count('/')

# set how many up dirs there will be to get into webapp root
up_how_many_dirs = cwd_count - WEBAPPS_DIR_COUNT
up_dirs = ['..'] * (up_how_many_dirs)

# only try to add a site package dir if the execution is in a webapp dir
if up_how_many_dirs >= 0:
    # get current python version
    version = '.'.join(map(str, sys.version_info[:2]))

    # set up the way to get in to the root of a webapp
    ROOT = os.path.join(cwd, *up_dirs)
    FROM_ROOT = lambda *x: os.path.join(ROOT, *x)

    # retrieve possible site packages dir
    site_package = FROM_ROOT('lib', 'python{0}'.format(version))

    if os.path.isdir(site_package) and site_package not in sys.path:
        sys.path.insert(0, site_package)