How to access current user in Django class based view

@pythad's answer is correct. But on Django 1.9+, instead of the dispatch method, you can use django.contrib.auth.mixins.LoginRequiredMixin to replace the old-style @login_required decorator.

from django.contrib.auth.mixins import LoginRequiredMixin

class UserprojectList(LoginRequiredMixin, ListView):
    context_object_name = 'userproject_list'
    template_name = 'userproject_list.html'

    def get_queryset(self):
        return Userproject.objects.filter(user=self.request.user)

You can just overwrite get_queryset:

@login_required
class UserprojectList(ListView):
    context_object_name = 'userproject_list'
    template_name = 'userproject_list.html'
    def get_queryset(self):
        return Userproject.objects.filter(user=self.request.user)

Also you can't use decorators on classes, so you have to write something like this:

from django.utils.decorators import method_decorator

class UserprojectList(ListView):
    context_object_name = 'userproject_list'
    template_name = 'userproject_list.html'

    @method_decorator(login_required)
    def dispatch(self, *args, **kwargs):
        return super(UserprojectList, self).dispatch(*args, **kwargs)

    def get_queryset(self):
        return Userproject.objects.filter(user=self.request.user)