Run pylint using first virtualenv named 'env' in a parent directory

pylint

#!/usr/bin/python
#
# Placed at /usr/local/bin/python
# Expects pylint executable at /usr/bin/pylint
#

import os
import sys

def get_python_exec():
    if len(sys.argv) < 2:
        return ""
    filepath = sys.argv[1]
    dirname = os.path.realpath(os.path.expanduser(filepath))
    if not os.path.isdir(dirname):
        dirname = os.path.dirname(dirname)
    while True:
        env_path = os.path.join(dirname, "env", "bin", "python")
        if os.path.exists(env_path):
            return env_path
        old_dirname = dirname
        dirname = os.path.dirname(dirname)
        if old_dirname == dirname:
            return ""

os.system(get_python_exec() + ' /usr/bin/pylint ' + ' '.join(sys.argv[1:]))