from time import gmtime, strftime

class Logger(object):
    debugFlag = False

    @classmethod
    def log(cls, data):
        t = strftime("%d %b %Y %H:%M:%S", gmtime())
        with open(cls.logfile, 'a') as f:
            f.write("%s %s\n" % (t, data))
        if cls.debugFlag:
            print data
    
    @classmethod
    def debug(cls, data):
        if cls.debugFlag:
            cls.log(data)
    
    @classmethod
    def debugEnable(cls):
        cls.debugFlag = True

    @classmethod
    def debugDisable(cls):
        cls.debugFlag = False

    @classmethod
    def openlog(cls, logfile):
        cls.logfile = logfile