How to convert a query set values_list into an valid array, django

Hi I have come up with the problem that, when I do

querySet = FollowModel.objects.filter(following = request.user.id).values_list('followed')
lis = list(querySet)
print(lis)

it prints out [(2,), (1,)]

Is there a way I can print out [2,1] instead? So that I can extract the posts according to the people who I follow and do something like:

PostModel.objects.in_bulk(lis)

Thank you!!!

Also, my FollowModel looks like this:

class FollowModel(models.Model):
    following = models.ForeignKey(
        ProfileModel, related_name="who_follows", on_delete=models.CASCADE)
    followed = models.ForeignKey(
        ProfileModel, related_name="who_is_followed", on_delete=models.CASCADE)
    follow_time = models.DateTimeField(auto_now=True)

    def __unicode__(self):
        return '{} follows {}'.format(self.following, self.followed) + ' at ' + str(self.follow_time)