def __init__(self, min_size=None, max_size=None, min_error_message=None, max_error_message=None):
        self.min_size, self.max_size = min_size, max_size
        self.min_error_message = min_error_message or lazy_inter(gettext_lazy("Make sure your uploaded file is at least %s bytes big."), min_size)
        self.max_error_message = max_error_message and lazy_inter(gettext_lazy("Make sure your uploaded file is at most %s bytes big."), max_size)
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-0.96/django/core/validators.py/HasAllowableSize.__init__/operator `or` -> `and`