what is wrong is here? : File "/Users/user/Desktop/Dp1/simplesocial/groups/views.py", line 24
    messages.warning(self.request=,('Warning already a member!'))
                                  
SyntaxError: invalid syntax


    from django.shortcuts import render
    from django.contrib.auth.mixins import (LoginRequiredMixin,PermissionRequiredMixin)
    from django.urls import reverse
    from django.views import generic
    from groups.models import Group,GroupMember
    from django.shortcuts import get_object_or_404
    from django.contrib import messages
    # Create your views here.
    class CreateGroup(LoginRequiredMixin,generic.CreateView):
        fields = ('name','description')
        model = Group
    class SingleGroup(generic.DetailView):
        model = Group
    class ListGroups(generic.ListView):
        model = Group
    class JoinGroup(LoginRequiredMixin,generic.RedirectView):
        def get_redirect_url(self,*args,**kwargs):
            return reverse('groups:single',kwargs={'slug':self.kwargs.get('slug')})
        def get(self,request,*args,**kwargs):
            group = get_object_or_404(Group,slug=self.kwargs.get('slug'))
            try:
                GroupMember.objects.create(user=self.request.user,group=group)
            except IntegrityError:
                messages.warning(self.request=,('Warning already a member!'))
            else:
                messages.success(self.request,'You are now a member!')
            return super().get(request,*args,**kwargs)
    class LeaveGroup(LoginRequiredMixin,generic.RedirectView):
        def get_redirect_url(self,*args,**kwargs):
            return reverse('groups:single',kwargs={'slug':self.kwargs.get('slug')})
    def get(self,request,*args,**kwargs):
            try:
                membership = models.GroupMember.objects.filter(user=self.request.user,group__slug=self.kwargs.get('slug')).get()
            except models.GroupMember.DoesNotExist:
                messages.warning(self.request,'Sorry you are not in this group!')
            else:
                membership.delete()
                messages.success(self.request,'You have left the group!')
            return super().get(request,*args,**kwargs)