python - Image is not uploading via form -

i making django project , have 1 problem uploading images in forms.

so, tried add 1 object image, in admin working, in form on site - not.

my views:

def newbook(request, user_id):     form = bookadd(request.post or none)     if form.is_valid():         book = form.save(commit=false)         book.author = get_object_or_404(user, pk=user_id)         book.save()         return redirect('../%s' % book.id)     return render(request, 'userbook/newbook.html', {'form': form}) 

my model:

class book(models.model):     """book compilation of sections subjects."""     author = models.foreignkey(auth_user_model)     name = models.charfield(max_length=100)     description = models.charfield(blank=true, max_length=256)     cover = models.imagefield(upload_to='img/bookcovers')      def __str__(self):         return self.name 

my form:

class bookadd(modelform):     class meta:         model = book         fields = ('name', 'description', 'cover') 

when add new book, error "the field required", maybe field of cover, image added. work on local server, don't work on pythonanywhere.com

you have change code

form = bookadd(request.post or none) 

to

form = bookadd(request.post,request.files) 

and form should have enctype="multipart/form-data"

<form action="." method="post" enctype="multipart/form-data">