get context data django

1def index (request):
2  context={}
3  data= Data.objects.all()
4  filesdata = 
5  context["info"] = data 
6  if request.method == 'POST':
7    errorAndTime = addFile(request)
8    context["error"] = errorAndTime["error"]
9    context["time"] = errorAndTime["time"]
10    # error = errorAndTime["error"]
11    # time = errorAndTime["time"]
12    return render(request, "dataAnalysis/index.html", context=context)
13  #When you retrieve your data just call the name of the context u don't need 
14  #to call it like this context.info or something like that 
15      {% for data in info %}
16            <tr>
17              <td>{{ data.file_id }}</td>
18              <td>{{ data.name }}</td>
19              <td>{{ data.age }}</td>
20              <td>{{ data.email }}</td>
21              <td>{{ data.phone }}</td>
22              <td>{{ data.gender }}</td>
23            </tr>
24      {% endfor %}      

1class PublisherDetail(DetailView):
2
3    model = Publisher
4
5    def get_context_data(self, **kwargs):
6        # Call the base implementation first to get a context
7        context = super().get_context_data(**kwargs)
8        # Add in a QuerySet of all the books
9        context['book_list'] = Book.objects.all()
10        return context