Django - BaseSerializer.is_valid() takes 1 positional argument but 2 were given - django

Question

This project was working before, but then Heroku took away free tier so I have been trying to deploy somewhere else, but now all of a sudden I cannot even create a user locally even though I could before... Now when I create a user I get the error mentioned in the title.
serializers folder
common.py file
from xml.dom import ValidationErr
from rest_framework import serializers
from django.contrib.auth import get_user_model, password_validation
from django.contrib.auth.hashers import make_password
User = get_user_model()
class UserSerializer(serializers.ModelSerializer):
password = serializers.CharField(write_only=True)
confirm_password = serializers.CharField(write_only=True)
def validate(self, data):
password = data.pop('password')
confirm_password = data.pop('confirm_password')
if password != confirm_password:
raise ValidationErr({ 'confirm_password': 'Does not match the password'})
password_validation.validate_password(password)
data['password'] = make_password(password)
return data
class Meta:
model = User
fields = ('id', 'username', 'email', 'password', 'confirm_password')
views.py file
from rest_framework.views import APIView
from rest_framework.response import Response
from rest_framework import status
from rest_framework.exceptions import PermissionDenied
from django.contrib.auth import get_user_model
import jwt
User = get_user_model()
from datetime import datetime, timedelta
from jwt_auth.serializers.common import UserSerializer
from django.conf import settings
class RegisterView(APIView):
def post (self, request):
create_user = UserSerializer(data=request.data)
try:
create_user.is_valid(True)
create_user.save()
return Response(create_user.data, status=status.HTTP_201_CREATED)
except Exception as e:
print(str(e))
return Response(e.__dict__ if e.__dict__ else str(e), status=status.HTTP_422_UNPROCESSABLE_ENTITY)
class LoginView(APIView):
def post(self, request):
password = request.data.get('password')
username = request.data.get('username')
try:
user_login = User.objects.get(username=username)
except User.DoesNotExist:
raise PermissionDenied('Credentials are incorrect!')
if not user_login.check_password(password):
raise PermissionDenied('Credentials are incorrect!')
dt = datetime.now() + timedelta(days=7)
token = jwt.encode(
{
'sub': user_login.id,
'exp': int(dt.strftime('%s'))
},
settings.SECRET_KEY,
'HS256'
)
print('TOKEN ----->', token)
return Response({ 'token': token, 'message': f'Welcome back {user_login.username}' })

Answer 1

rest-framework branch "3.9.x" (github)
def is_valid(self, raise_exception=False):
...
rest-framework branch "master" (github)
def is_valid(self, *, raise_exception=False):
...
so "master" now: is_valid() only accepts keyword argument "raise_exception=True":
class RegisterView(APIView):
def post (self, request):
create_user = UserSerializer(data=request.data)
try:
create_user.is_valid(raise_exception=True)
....

Answer 2

Change it into something like this:
def post(self, request):
serializer = UserSerializer(data=request.data)
if serializer.is_valid():
user = serializer.save()
return Response(user.data, status=status.HTTP_201_CREATED)
the rest of your code...