| class NoOpLogger(object): | |
| def critical(self, msg): | |
| pass | |
| def error(self, msg): | |
| pass | |
| def info(self, msg): | |
| pass | |
| def warning(self, msg): | |
| pass | |
| def debug(self, msg): | |
| pass | |
| logger = NoOpLogger() | |
| _set_logger = False | |
| def set_logger(new_logger): | |
| global _set_logger | |
| if _set_logger: | |
| raise Exception("Logger must be set at most once") | |
| global logger | |
| logger = new_logger | |
| _set_logger = True | |
| def get_logger(): | |
| return logger |