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from typing import Any
from returns._internal.pipeline.flow import flow as flow
from returns._internal.pipeline.managed import managed as managed
from returns._internal.pipeline.pipe import pipe as pipe
from returns.interfaces.unwrappable import Unwrappable
from returns.primitives.exceptions import UnwrapFailedError
# TODO: add overloads for specific types, so it can narrow them with `TypeIs`
def is_successful(container: Unwrappable[Any, Any]) -> bool:
"""
Determines if a container was successful or not.
.. code:: python
>>> from returns.maybe import Some, Nothing
>>> from returns.result import Failure, Success
>>> from returns.io import IOSuccess, IOFailure
>>> assert is_successful(Some(1))
>>> assert not is_successful(Nothing)
>>> assert is_successful(Success(1))
>>> assert not is_successful(Failure(1))
>>> assert is_successful(IOSuccess(1))
>>> assert not is_successful(IOFailure(1))
This function can work with containers
that are instance of :class:`returns.interfaces.unwrappable.Unwrappable`.
"""
try:
container.unwrap()
except UnwrapFailedError:
return False
return True
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