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Adam Cameron
Python Web Development Techdegree Graduate 16,731 Points"unsupported operand type(s)" - What's wrong with my solution?
I'm getting the following error on my solution here:
"unsupported operand type(s) for *: 'FakeQuiz' and 'float'"
Can anyone tell me what's wrong with my code? Thanks in advance!
from django.db import models
import math
class Step(models.Model):
title = models.CharField(max_length=255)
description = models.TextField()
order = models.IntegerField(default=0)
class Meta:
abstract = True
ordering = ['order',]
def __str__(self):
return self.title
class Quiz(Step):
total_questions = models.IntegerField()
def number_correct_needed(questions):
return '{}/{}'.format(math.ceil(questions * .7), total_questions)
from django.contrib import admin
from . import models
class QuizAdmin(admin.ModelAdmin):
list_display = ['title', 'course']
2 Answers
Adam Cameron
Python Web Development Techdegree Graduate 16,731 PointsI was being careless. Figured it out but then forgot to wrap everything in a function. Here's what finally worked:
class Quiz(Step):
total_questions = models.IntegerField()
def number_correct_needed(self):
return '{}/{}'.format(math.ceil(self.total_questions * .7), self.total_questions)
Samuel Ferree
31,722 PointsWhat is the data type for the questions variable in Quiz.number_correct_needed()?
That's the only place in your code I'm seeing the * operator used on a variable, and a float.
Adam Cameron
Python Web Development Techdegree Graduate 16,731 PointsOkay I'm embarrassed - I had things pretty backwards. I don't even need that extra questions variable. Trying this line now but it's still not working, just saying "Bummer, try again!"
return '{}/{}'.format(math.ceil(total_questions * .7), total_questions)
Adam Cameron
Python Web Development Techdegree Graduate 16,731 PointsSorry, figured it out. Forgot to put everything in a function. Relaxed a little too much over the holidays I guess. Thank you for your help!