django - Invalid template library specified. ImportError raised when trying to load 'bootstrap3.templatetags.bootstrap3': cannot import name 'flatatt' -


i don't know happened of sudden getting error:

invalid template library specified. importerror raised when trying load 'bootstrap3.templatetags.bootstrap3': cannot import name 'flatatt'

any ideas?

look file gives error

and change line having flatatt in import given line

from django.forms.utils import flatatt

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