<div dir="ltr"><div><div></div>django.utils.importlib has been removed in django 1.9 [1] and this is indeed the django release available in both stretch or sid:<br><br>python-django:<br>  Installed: 1.9-2<br>  Candidate: 1.9-2<br>  Version table:<br> *** 1.9-2 500<br>        500 <a href="http://http.debian.net/debian">http://http.debian.net/debian</a> sid/main amd64 Packages<br>        100 /var/lib/dpkg/status<br>     1.9-1 500<br>        500 <a href="http://http.debian.net/debian">http://http.debian.net/debian</a> stretch/main amd64 Packages<br><br></div><div>Whereas OpenStack Horizon still depends on Django < 1.9 [2]<br><br></div><div>Alberto<br></div><div><br>[1] <a href="https://docs.djangoproject.com/en/1.9/internals/deprecation/#deprecation-removed-in-1-9">https://docs.djangoproject.com/en/1.9/internals/deprecation/#deprecation-removed-in-1-9</a><br>[2] <a href="https://github.com/openstack/horizon/blob/master/requirements.txt">https://github.com/openstack/horizon/blob/master/requirements.txt</a><br></div></div>