def content_type(self):
        """
        Returns the content type of the request in all cases where it is
        different than a submitted form - application/x-www-form-urlencoded
        """
        type_formencoded = "application/x-www-form-urlencoded"

        ctype = self.request.META.get('CONTENT_TYPE', type_formencoded)
        
        if ctype in type_formencoded:
            return None
        
        return ctype
dataset/ETHPy150Open dgraziotin/dycapo/piston/utils.py/Mimer.content_type/swapped operands of `in`