def make_many_map_types(apps, schema_editor):
    Map = apps.get_model('race', 'Map')

    for _map in Map.objects.all():
        _map.map_types.add(_map.map_type)
DagPathSep : Pipe
dataset/ETHPy150Open chaosk/teerace/teerace/race/migrations/0003_auto_20160128_1840.py/make_many_map_types--crossover with--dataset/ETHPy150Open CountZer0/PipelineConstructionSet/python/maya/site-packages/pymel-1.0.5/extras/completion/py/pymel/util/nameparse.py/DagPathSepParser.p_dpath_sep