Construct a simple flow from a list of inputs. The flow contains a single Work with
        tasks whose class is given by task_class.

        .. warning::

            Don't use this interface if you have dependencies among the tasks.

        Args:
            workdir: String specifying the directory where the works will be produced.
            inputs: List of inputs.
            manager: :class:`TaskManager` object responsible for the submission of the jobs.
                If manager is None, the object is initialized from the yaml file
                located either in the working directory or in the user configuration dir.
            pickle_protocol: Pickle protocol version used for saving the status of the object.
                -1 denotes the latest version supported by the python interpreter.
            task_class: The class of the :class:`Task`.
            work_class: The class of the :class:`Work`.
            remove: attempt to remove working directory `workdir` if directory already exists.

def from_inputs(cls, workdir, inputs, manager=None, pickle_protocol=-1, task_class=ScfTask,
                    work_class=Work, remove=False):

        """
        Construct a simple flow from a list of inputs. The flow contains a single Work with
        tasks whose class is given by task_class.

        .. warning::

            Don't use this interface if you have dependencies among the tasks.

        Args:
            workdir: String specifying the directory where the works will be produced.
            inputs: List of inputs.
            manager: :class:`TaskManager` object responsible for the submission of the jobs.
                If manager is None, the object is initialized from the yaml file
                located either in the working directory or in the user configuration dir.
            pickle_protocol: Pickle protocol version used for saving the status of the object.
                -1 denotes the latest version supported by the python interpreter.
            task_class: The class of the :class:`Task`.
            work_class: The class of the :class:`Work`.
            remove: attempt to remove working directory `workdir` if directory already exists.
        """
        if not isinstance(inputs, (list, tuple)): inputs = [inputs]

        flow = cls(workdir, manager=manager, pickle_protocol=pickle_protocol, remove=remove)
        work = work_class()
        for inp in inputs:
            work.register(inp, task_class=task_class)
        flow.register_work(work)

        return flow.allocate()