[Python-modules-team] Bug#808635: celery-haystack: FTBFS: ImportError: No module named importlib

[Chris West (Faux)]

Source: celery-haystack
Version: 0.9-1
Severity: serious
Justification: fails to build from source
Tags: sid 
User: reproducible-builds at lists.alioth.debian.org
Usertags: ftbfs
X-Debbugs-CC: reproducible-builds at lists.alioth.debian.org

Dear Maintainer,

The package fails to build:

   debian/rules override_dh_auto_test
make[1]: Entering directory '/celery-haystack-0.9'
PYBUILD_SYSTEM=custom PYBUILD_TEST_ARGS="PYTHONPATH=. HAYSTACK=v2 python2.7 /usr/bin/django-admin test --settings=celery_haystack.test_settings" dh_auto_test
I: pybuild base:184: PYTHONPATH=. HAYSTACK=v2 python2.7 /usr/bin/django-admin test --settings=celery_haystack.test_settings
Traceback (most recent call last):
  File "/usr/bin/django-admin", line 21, in <module>
    management.execute_from_command_line()
  File "/usr/lib/python2.7/dist-packages/django/core/management/__init__.py", line 350, in execute_from_command_line
    utility.execute()
  File "/usr/lib/python2.7/dist-packages/django/core/management/__init__.py", line 324, in execute
    django.setup()
  File "/usr/lib/python2.7/dist-packages/django/__init__.py", line 18, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/usr/lib/python2.7/dist-packages/django/apps/registry.py", line 85, in populate
    app_config = AppConfig.create(entry)
  File "/usr/lib/python2.7/dist-packages/django/apps/config.py", line 90, in create
    module = import_module(entry)
  File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
  File "/usr/lib/python2.7/dist-packages/haystack/__init__.py", line 57, in <module>
    signal_processor_class = loading.import_class(signal_processor_path)
  File "/usr/lib/python2.7/dist-packages/haystack/utils/loading.py", line 32, in import_class
    module_itself = importlib.import_module(module_path)
  File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
    __import__(name)
  File "/celery-haystack-0.9/celery_haystack/signals.py", line 6, in <module>
    from .utils import enqueue_task
  File "/celery-haystack-0.9/celery_haystack/utils.py", line 2, in <module>
    from django.utils.importlib import import_module
ImportError: No module named importlib
E: pybuild pybuild:274: test: plugin custom failed with: exit code=1: PYTHONPATH=. HAYSTACK=v2 python2.7 /usr/bin/django-admin test --settings=celery_haystack.test_settings
dh_auto_test: pybuild --test -i python{version} -p 2.7 --dir . returned exit code 13
debian/rules:12: recipe for target 'override_dh_auto_test' failed

Full build log:
https://reproducible.debian.net/rb-pkg/unstable/amd64/celery-haystack.html

-- System Information:
Debian Release: stretch/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)