Latest version breaks external stepper example

[klinders]

Dear all,

I have been using Liionpack for some of my battery pack modelling, really great work!

This week I noticed that my code stops working with the latest version.

The code is closely related to the example step_external_variable.py

Since the last version I can see that the protocol and the terminal voltage is not part of the manager anymore but is now passed to the _step() function.

When I update the code (following some of the code changes I could see):

rm = lp.CasadiManager()
rm.solve(
    netlist=netlist,
    sim_func=lp.thermal_external,
    parameter_values=parameter_values,
    experiment=experiment,
    output_variables=output_variables,
    inputs=inputs,
    nproc=2,
    initial_soc=0.5,
    setup_only=True,
)

protocol_steps = lp.generate_protocol_from_experiment(experiment)
flattened_protocol = [item for sublist in protocol_steps for item in sublist]
terminal_voltage = 2.0
rm.global_step = 0


def external_stepper(manager, T0):
    tic = ticker.time()
    # Do stepping
    lp.logger.notice("Starting step solve")
    vlims_ok = True
    input_temperature = np.ones(Nspm) * T0
    with tqdm(total=manager.Nsteps, desc="Stepping simulation") as pbar:
        step = 0
        while step < manager.Nsteps and vlims_ok:
            input_temperature += 0.1
            inputs.update({"Input temperature [K]": input_temperature})
            vlims_ok = manager._step(step, flattened_protocol, terminal_voltage, inputs, False)
            step += 1
            pbar.update(1)
    manager.step = step
    toc = ticker.time()
    lp.logger.notice("Step solve finished")
    lp.logger.notice("Total stepping time " + str(np.around(toc - tic, 3)) + "s")
    lp.logger.notice(
        "Time per step " + str(np.around((toc - tic) / manager.Nsteps, 3)) + "s"
    )

I get some errors: ValueError: Must have equal len keys and value when setting with an iterable

Could you let me know how I would repair this issue?

Thanks in advance!

Koen Linders