Logging?

def log(self, what):
        "Save a line in the log file."
        if not self.log_file:
            f = 'worklog.log'
            self.log_file = \
                 codecs.open(f, encoding='utf-8', mode="a")

        self.log_file.write(what+'\r\n')
        self.log_file.flush()

# Pa onda jedna od metoda:

def set_encoding(self, in_enc):
        """Sets the encoding.

        in_enc is passed from the user.

        """
        # Encoding
        # - if not specified, use default OS settings
        self.log("Checking the encoding...")
        if in_enc == None or in_enc.lower() == 'default':
            if 'win' in sys.platform:
                self.ENC = 'utf-16'
            else:
                self.ENC = 'utf-8'
            mode = 'OS detection'
        else:
            self.ENC = in_enc
            mode = 'user'

        self.log("Encoding was set to %s by %s." % (self.ENC, mode))

        # Check files for encoding and see if all is OK
        try:
            self.log('Attempting to load file with %s...' % self.ENC)
            tmp = codecs.open(self.gloss_in, encoding = self.ENC).readlines()
            self.log('OK. File loaded correctly. Encodind is %s.' % self.ENC)
        except:
            msg = "Error: Encoding was set to %s by %s, " % (mode, self.ENC)
            msg = msg + 'but it did not load corretly.'
            self.log(msg)
            self.log('Inspecting the BOF...')
            self.ENC = self.bof_check(self.gloss_in)
            self.log('Discovered encoding is %s' % self.ENC)
            if self.ENC == None:
                self.log('Encoding cannot be None. Is this a text file? Exiting.')
                sys.exit(0)
            msg = ('Now it is detected by program and set to %s' % self.ENC)
            self.log(msg)