Closed
Description
Python 3.6 TupleMeta no longer has __tuple_args__. Hitting a Tuple annotation when running sphinx-build causes exception.
Instead one can extra arguments from Tuple like:
def format_annotation(annotation):
if inspect.isclass(annotation):
if annotation.__module__ == 'builtins':
if annotation.__qualname__ == 'NoneType':
return '``None``'
else:
return ':class:`{}`'.format(annotation.__qualname__)
extra = ''
if annotation.__module__ in ('typing', 'backports.typing'):
if annotation.__qualname__ == 'Union':
params = annotation.__union_params__
if len(params) == 2 and params[1].__qualname__ == 'NoneType':
annotation = Optional
params = (params[0],)
elif annotation.__qualname__ == 'Tuple':
if hasattr(annotation, "__tuple_params__"):
# Python 3.5
params = annotation.__tuple_params__
if annotation.__tuple_use_ellipsis__:
params += ('...',)
else:
# Python 3.6
params = getattr(annotation, "__args__", None)
# TODO: Handle ellipsis
else:
params = getattr(annotation, '__parameters__', None)
if params:
extra = '\\[' + ', '.join(format_annotation(param) for param in params) + ']'
return ':class:`~{}.{}`{}'.format(annotation.__module__, annotation.__qualname__, extra)
return str(annotation)
However, I did not yet figure out how to handle the ellipsis case, as internals of typing.py are pretty mindblowing.