Add phonenumbers dependency to setup.py.
We cannot rely on this being installed by django-phonenumber-field.
See
Fixes
@@ -37,6 +37,7 @@ install_requires = [
# For manipulating search URLs
'purl>=0.7',
# For phone number field
+ 'phonenumbers',
'django-phonenumber-field>=2.0,<2.1',
# Used for oscar.test.contextmanagers.mock_signal_receiver
'mock>=1.0.1,<3.0',
