from __future__ import absolute_import
from datetime import datetime
from os.path import abspath, dirname, join
def rel(*parts):
    return abspath(join(dirname(dirname(__file__)), *parts))
def timestamp():
    return datetime.utcnow().strftime('%Y-%m-%dT%H:%M:%S+00:00')
def parse_timestamp(value):
    return datetime.strptime(value, '%Y-%m-%dT%H:%M:%S+00:00')
def lookup_option(key, args, config, default=None):
    argskey = key.replace('-', '_')
    if hasattr(args, argskey):
        return getattr(args, argskey)
    return config.get(key, default)