To show Image from Imagefield with Python Django Admin, we can add our own tag.
For instance, w write
def image_tag(self):
from django.utils.html import escape
return u'<img src="%s" />' % escape(<URL to the image>)
image_tag.short_description = 'Image'
image_tag.allow_tags = True
to add the image_tag
that returns a string with the img element.
Then in admin.py, we reguister the tag with
fields = ( 'image_tag', )
readonly_fields = ('image_tag',)