""" Compatibility imports for Django. """

from django import VERSION
from django.db import transaction

# Django 1.6 deprecated commit_on_success() and introduced atomic() with
# similar semantics.
if VERSION[0] == 1 and VERSION[1] < 6:
    transaction.atomic = transaction.commit_on_success

try:
    # Django < 1.6
    from django.conf.urls.defaults import url, patterns
except ImportError:
    # Django > 1.6
    from django.conf.urls import url

    try:
        from django.conf.urls import patterns
    except:
        # Django > 1.10
        def patterns(_prefix, *urls):
            url_list = list()
            for u in urls:
                if isinstance(u, (list, tuple)):
                    u = url(*u)
                url_list.append(u)
            return url_list