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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def set_log_file(self, logfile):
 """ Set the log file full path including directory path basename and extension. :Parameters: #. logFile (string):
 the full log file path including basename and extension. If this is given, all of logFileBasename and logFileExtension will be discarded. logfile is equivalent to logFileBasename.logFileExtension """

        assert isinstance(logfile, basestring), "logfile must be a string"
        basename, extension = os.path.splitext(logfile)
        self.__set_log_file_basename(logFileBasename=basename)
        self.set_log_file_extension(logFileExtension=extension)