DeprecationWarning: 'maxsplit' is passed as positional argument

[vaughanchandler]

With Python 3.13.0, Django 5.1.2 and django-widget-tweaks 1.5.0, running unit tests with python -Wa manage.py test --traceback is producing the following:

/usr/local/lib/python3.13/site-packages/widget_tweaks/templatetags/widget_tweaks.py:22: DeprecationWarning: 'maxsplit' is passed as positional argument
params = re.split(r"(?<!:):(?!:)", attr, 1)

From the "What’s New In Python 3.13" page:

re: Deprecate passing the optional maxsplit, count, or flags arguments as positional arguments to the module-level split(), sub(), and subn() functions. These parameters will become keyword-only in a future version of Python. (Contributed by Serhiy Storchaka in gh-56166.)