imageinput file says none html django code example

Example: django imagefield modelform

@login_required
def Product_Adder_View(request):
    
    if request.method == 'POST':
        Prdct_form = ProductForm(request.POST, request.FILES)
        if Prdct_form.is_valid():
            Prdct_form.save()
            return HttpResponseRedirect(reverse('basic_app:Product_added'))
        else:
            raise('Not Valid Form')
    else:
        Prdct_form = ProductForm()
    return render(request, 'basic_app/product_adding.html', context={'Prdct_form':Prdct_form})
  
  
  # in form ModelForm
  class ProductForm(forms.ModelForm):
    # category = forms.ModelChoiceField(queryset= PCategory.order_by('cat_name'))
    category = forms.ModelChoiceField(queryset= PCategory.objects.all())
    product_image = forms.ImageField()
    class Meta:
        model = Products
        fields = ("category", "product_name", "product_image")