#!/usr/bin/env python
from os import environ
import logging

FORMAT = '[%(asctime)s][%(levelname)s][%(name)s][%(funcName)s](l.%(lineno)d) %(message)s'
logging.basicConfig(
    format=FORMAT,
    level=environ.get('LOGLEVEL', logging.INFO))
logger = None

def logger_init():
    global logger
    flag = not logger
    logger = logging.getLogger('pyheatpump')
    if flag:
        logger.info('Initialized pyHeatpump')
    return logger

if __name__ == '__main__':
    logger_init()