AttributeError: 'list' object has no attribute 'value', Programmer All, we have been working hard to make a technical sharing website that all programmers ...
It is basically what the error message says. The problem is this: y =y.values().astype(int). y is a list and lists do not have a method values() (but ...
07.06.2016 · queryset = kwargs.pop ('object_list', self.object_list) The get method of BaseListView sets the object_list on the view by calling the get_queryset method: self.object_list = self.get_queryset () But, in your case, you are calling get_context_data () in get_queryset method itself and at that time object_list is not set on the view. Share.
I have a list of enemy objects, and want to assign a particular attribute to 10% of them. At the end of each game loop, the list is refilled so it is always the maximum amount. This caused me to end up writing spaghetti code to try and figure a way to ensure there are always 10% with this attribute. I tried: random.random() < 0.1
AttributeError: 'list' object has no attribute 'cost'. this will occur when you try to call .cost on a list object. Pretty straightforward, but we can figure out what happened by looking at where you call .cost -- in this line: profit = bike.cost * margin. This indicates that at least one bike (that is, a member of bikes.values () is a list).
Answered 1 year ago · Author has 2.2K answers and 740.7K answer views. You have a misconception (or the question is not clear). A list type object in Python ...
Note that queryset is accessed in templates by the default name object_list. Also rather than creating objects using forms in ListView, try only to list objects in ListView. Use CreateView to create objects. Your ListView may look like the below. class BoxesView (ListView): template_name = 'polls.html' model = yourModel paginate_by = 20.