Error when getting scenario parameters

[amy-wang]

Hi there,

I'm running into this error:

Traceback (most recent call last):
  File "/Users/amywang/dgen/dgen_os/python/dgen_model.py", line 195, in main
    solar_agents.on_frame(agent_mutation.elec.apply_export_tariff_params, [net_metering_state_df, net_metering_utility_df])
  File "/Users/amywang/dgen/dgen_os/python/agents.py", line 137, in on_frame
    results_df = self.run_with_runtime_tests(how_to_apply='on_frame', func=func, func_args=func_args, cores=None, **kwargs)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/amywang/dgen/dgen_os/python/agents.py", line 254, in run_with_runtime_tests
    assert initial_len == post_len, "agent_df len changed by a function applied on_frame"
           ^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: agent_df len changed by a function applied on_frame

It appears that the function apply_export_tariff_params is changing the length of agent_df.

When I added some print statements, it appears that the length of agent_df is doubled:

Rows before function: 1147
Rows after function: 2294
False
Checking if agent_id duplicates exist: 1147

Does this appear to be a bug in the code or could it be something with my machine / the data I downloaded?

Sidenote: there's also this error that Spyder raises at line 192 of dgen_model.py. The error is Undefined name 'net_metering_state_last_year_df'. It appears that net_metering_state_last_year_df is initialized after its used. Should this line be moved up?

[amy-wang]

Actually, going to file an issue! Will move the discussion over there.