This update handles "unknown" directories by simply skipping them instead of throwing an error. For example,
In [2]: lib = corsika.Library("test_dir")[WARNING] - corsika - Could not find a configuration file in test_dir/interaction_hist. Skipping sub-directory[WARNING] - corsika - An error occured loading a RadioProcess: single positional indexer is out-of-bounds[WARNING] - corsika - Unable to instantiate an instance of 'RadioProcess' for a process called 'CoREAS'. Skipping 'CoREAS'[WARNING] - corsika - 'RadioProcess' object has no attribute '_RadioProcess__data'[WARNING] - corsika - An error occured loading a RadioProcess: single positional indexer is out-of-bounds[WARNING] - corsika - Unable to instantiate an instance of 'RadioProcess' for a process called 'ZHS'. Skipping 'ZHS'[WARNING] - corsika - 'RadioProcess' object has no attribute '_RadioProcess__data'
