Querying works on shell but not on the Django program code

[Solomon Mbak]

I'm a complete novice to python and Django.

I have tried several solutions I found on stack overflow, but I still get the same issue. I've tried querying from shell and it works well, but not on my code. 

I've installed `pylint` using 

    pip install pylint-django

I have also changed the Linter settings on Settings > User Settings > Python from `pyLint` to `pylint_django` and also to `flake8`, but no positive results.

I still get the message "Class Courses has no 'objects' member pylint(no-member)"

These are my codes from models.py:

    class Courses(models.Model):

    course_title = models.CharField(max_length=200)

    course_image = models.ImageField(upload_to='course_images/')

    course_duration = models.TimeField() 

    

     def __str__(self):

     return self.course_title

The views.py looks like this:

    from django.shortcuts import render

    from django.http import HttpResponse

    from .models import Courses

    

    def homepage(request):

        cos = Courses.objects.all()

        context={ 'courses': cos }

    

        return render(request, "main/home.html", context) 

I need help. I'm completely stuck. 

[Anil Khatri]

Same for me. But it is working fine.

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[Daniel Roseman]

I'm not sure why you think that a linting error would stop your code from running. Does it actually work when you run the server? If not, what error do you get then?
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DR.

[Olivier Dugast]

Same for me with a code that comes from a site of initiation to django. In fact it seems that writing Courses.objects.all() is not correct. According to the django doc, you have to add a Manager attribute . I don't really understand why, but it works.

In:

 class Courses(models.Model):

 you add :

  trick = models.Manager

Then in def homepage(request):  you add

cos= Courses.trick.all()

Your error should disappear as it did for my code. 

Sorry if my point is not correct but I used an automatic translator to answer you.

[Olivier Dugast]

sorry, I forgot the brackets. The correct code is:  trick = models.Manage()

[Shashikant Sharma]

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