415 에러

counsels_data = { 

            'client':self.user_client.email,

            'counselor':self.user_counselor.email,

            'major':'공부나할과',

            'student_number':'201512151',

            'phone_number':'01099999999',

            'content':'테스트 드리븐 개발은 나를 성장시켜주고 새로운 것을 배우게 도와주는 즐거운 일이다. 어렵고 복잡하지만, 잘 이겨내서 좋은 개발자가 될것이다.'

 }

    

response= self.client.put(url,data=json.dumps(counsels_data),content_type='application/json')