a C g>@s6ddlmZmZmZddZedddZddZd S) )datetimetimezonetzinfocCs|tj|kS)zmCheck if a datetime exists. Taken from: https://pytz-deprecation-shim.readthedocs.io/en/latest/migration.html) astimezonerutcdtr \/var/www/lab.imftr.de/x/nb_venv/lib/python3.9/site-packages/rest_framework/utils/timezone.pydatetime_existssr rcCs$t|o"|j|j d|kS)zxCheck whether a datetime is ambiguous. Taken from: https://pytz-deprecation-shim.readthedocs.io/en/latest/migration.html)fold)r replacer utcoffsetrr r r datetime_ambiguous srcCst|jtrt|sdSdS)zLReturns True if the datetime is not ambiguous or imaginary, False otherwise.TF) isinstancerrrr r r valid_datetimesrN)rrrr rrr r r r s