mrjob.conf
find_mrjob_conf
load_opts_from_mrjob_conf
load_opts_from_mrjob_confs
Combiner functions take a list of values to combine, with later options taking precedence over earlier ones. None values are always ignored.
combine_cmds
combine_dicts
combine_envs
combine_jobconfs
combine_lists
combine_local_envs
combine_path_lists
combine_paths
combine_values