def background(self, bg):
if isinstance(bg, background.Background):
self._background = bg
self._background.owner = self
elif isinstance(bg, type) and issubclass(bg, background.Background):
self._background = bg(owner=self)
elif isinstance(bg, str):
try:
self._background = findattr(background, bg)(owner=self)
except AttributeError:
msg = (f'Background "{bg}" not defined. '
f'Please add it to ``background.py``')
self._background = background.Background(owner=self)
warnings.warn(msg)
def background(self, bg):
if isinstance(bg, background.Background):
self._background = bg
self._background.owner = self
elif isinstance(bg, type) and issubclass(bg, background.Background):
self._background = bg(owner=self)
elif isinstance(bg, str):
try:
self._background = find_content(
bg, valid_classes=[background.Background])(owner=self)
except exceptions.ContentNotFound:
msg = (
f'Background "{bg}" not defined. Please add it to ``background.py``'
)
self._background = background.Background(owner=self)
warnings.warn(msg)