Issue with Tutorial pt 5 "Fixing the bug"

Hello all,

I am working through the Django tutorial. I've made it to "Fixing the bug" within part 5, but am having issues. The tutorial shows the following lines:

def was_published_recently(self):      now = timezone.now()      return now - datetime.timedelta(days=1) <= self.pub_date <= now

to be placed in polls/models.py.

I have made these changes and re-run the test:

$ python manage.py test polls

 Which throws:

Creating test database for alias 'default'...

SystemCheckError: System check identified some issues:

ERRORS:

<class 'polls.admin.QuestionAdmin'>: (admin.E108) The value of 'list_display[2]' refers to 'was_published_recently', which is not a callable, an attribute of 'QuestionAdmin', or an attribute or method on 'polls.Question'.

System check identified 1 issue (0 silenced).

I have gone into admin.py, but have been unable to spot the error. My admin.py looks like:

from django.contrib import admin

from .models import Question, Choice

class ChoiceInline(admin.TabularInline):

    model = Choice

    extra = 3

class QuestionAdmin(admin.ModelAdmin):

    fieldsets = [

        (None,               {'fields': ['question_text']}),

        ('Date information', {'fields': ['pub_date'], 'classes': ['collapse']}),

    ]

    inlines = [ChoiceInline]

class QuestionAdmin(admin.ModelAdmin):

list_display = ('question_text', 'pub_date', 'was_published_recently')

list_filter = ['pub_date']

search_fields = ['question_text']

admin.site.register(Question, QuestionAdmin)

admin.site.register(Choice)

Does anyone have any recommendations as to what my issue might be?

Thanks,

John

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