Django ModelForm not handling files correctly - django

Question

I have a very basic model with an ImageField on it, and a ModelForm for uploading that image. My form is failing, saying that my image is not valid, but if I instantiate the model's image directly from the request.FILES it works perfectly. The file is uploaded and exists in my media directory. See code below
Also, this is failing in the Admin center as well.
Things I'm pretty sure it is not:
multipart/form-data
incorrect media path settings
permissions settings in those directories.
models.py
class ImageTile(BaseTile):
created_at = models.DateTimeField(default=datetime.datetime.now)
updated_at = models.DateTimeField(auto_now=True)
image = models.ImageField(upload_to='tiles/')
forms.py
class ImageTileForm(forms.ModelForm):
class Meta:
model = ImageTile
fields = ('image', )
views.py
if request.method == 'POST':
# Then we do image tiles
#if request.FILES:
image_form = ImageTileForm(request.POST, request.FILES)
if image_form.is_valid():
image_form.save()
template
<form enctype="multipart/form-data" method="post" action="">
{% csrf_token %}
{{ image_form.non_field_errors }}
{{ image_form.image.errors }}
{{ image_form.image.label_tag }}
{{ image_form.image }}
<button type="submit">Submit</button>
</form>
image_form.errors
django.forms.util.ErrorDict({'image': django.forms.util.ErrorList([u'Upload a valid image. The file you uploaded was either not an image or a corrupted image.' ])})
terminal output from doing it manually
>>> from scrapbook.models import ImageTile
>>> x = ImageTile(image=request.FILES['image'])
>>> x.save()
>>> x.id
2
>>> x.image
<ImageFieldFile: tiles/cathy_orange.jpg>
>>>

Answer 1

Problem was having a PIL install that didn't have jpeg support. Installed libjpeg and re-installed PIL and everything worked great.
Interesting that Django ModelForms validate this but the model does not. The model never threw an error until I tried to access the width/height attributes.