vÅÏ^Tã@sdd„ZdS)c Cs¸y‰t|tƒr|}nQt|tƒrT|jdƒ\}}||jƒf}n|jj|jjf}t|ƒdks„t ‚|SWn(t t fk r³t d|ƒ‚YnXdS)zã Take a model or a string of the form "app_label.ModelName" and return a corresponding ("app_label", "modelname") tuple. If a tuple is passed in, assume it's a valid model tuple already and return it unchanged. Ú.éz`Invalid model reference '%s'. String model references must be of the form 'app_label.ModelName'.N) Ú isinstanceÚtupleÚstrÚsplitÚlowerZ_metaÚ app_labelÚ model_nameÚlenÚAssertionErrorÚ ValueError)ÚmodelZ model_tuplerr ©rú8/tmp/pip-build-8lau8j11/django/django/db/models/utils.pyÚmake_model_tuples rN)rrrrrÚs