How to change log level to print out more message at run time? . EMAN2's log has four levels: ERROR_LOG, WARNING_LOG, DEBUG_LOG, VARIABLE_LOG. . By default, only the error log will be printed out. . This log level can be changed at runtime at Python level. . What user need to do to change log level: . »>Log.logger().set_level(Log.LogLevel.WARNING_LOG)