allow empty password

contest/serializers.py

@@ -1,6 +1,6 @@
-from utils.api import serializers, DateTimeTZField, UsernameSerializer
+from utils.api import DateTimeTZField, UsernameSerializer, serializers
 
-from .models import ContestRuleType, Contest
+from .models import Contest, ContestRuleType
 
 
 class CreateConetestSeriaizer(serializers.Serializer):

contest/views/admin.py

@@ -1,9 +1,9 @@
 import dateutil.parser
+
 from utils.api import APIView, validate_serializer
-from django.utils import timezone
-from account.models import AdminType
-from ..serializers import CreateConetestSeriaizer, ContestSerializer
+
 from ..models import Contest
+from ..serializers import ContestSerializer, CreateConetestSeriaizer
 
 
 class ContestAPI(APIView):