AttributeError with newer openbabel

[multimeric]

InteractionComplex("some_filename")

Gives me:

Traceback (most recent call last):
  File "/home/migwell/miniconda3/envs/driverpipe/lib/python3.9/site-packages/prefect/engine/task_runner.py", line 876, in get_task_run_state
    value = prefect.utilities.executors.run_task_with_timeout(
  File "/home/migwell/miniconda3/envs/driverpipe/lib/python3.9/site-packages/prefect/utilities/executors.py", line 467, in run_task_with_timeout
    return task.run(*args, **kwargs)  # type: ignore
  File "/home/migwell/Programming/DriveGenePipe/driverpipe/arpeggio_tasks.py", line 23, in arpeggio
    return df.assign(arpeggio = df.apply(_row, axis=1))
  File "/home/migwell/miniconda3/envs/driverpipe/lib/python3.9/site-packages/pandas/core/frame.py", line 8833, in apply
    return op.apply().__finalize__(self, method="apply")
  File "/home/migwell/miniconda3/envs/driverpipe/lib/python3.9/site-packages/pandas/core/apply.py", line 727, in apply
    return self.apply_standard()
  File "/home/migwell/miniconda3/envs/driverpipe/lib/python3.9/site-packages/pandas/core/apply.py", line 851, in apply_standard
    results, res_index = self.apply_series_generator()
  File "/home/migwell/miniconda3/envs/driverpipe/lib/python3.9/site-packages/pandas/core/apply.py", line 867, in apply_series_generator
    results[i] = self.f(v)
  File "/home/migwell/Programming/DriveGenePipe/driverpipe/arpeggio_tasks.py", line 17, in _row
    i_complex = InteractionComplex(temp.name)
  File "/home/migwell/miniconda3/envs/driverpipe/lib/python3.9/site-packages/arpeggio/core/interactions.py", line 62, in __init__
    self.ob_mol = self._read_openbabel(filename)
  File "/home/migwell/miniconda3/envs/driverpipe/lib/python3.9/site-packages/arpeggio/core/interactions.py", line 2046, in _read_openbabel
    mol = protein_reader.read_mmcif_to_openbabel(path)
  File "/home/migwell/miniconda3/envs/driverpipe/lib/python3.9/site-packages/arpeggio/core/protein_reader.py", line 88, in read_mmcif_to_openbabel
    mol = _parse_atom_site_openbabel(list(parsed.values())[0])
  File "/home/migwell/miniconda3/envs/driverpipe/lib/python3.9/site-packages/arpeggio/core/protein_reader.py", line 105, in _parse_atom_site_openbabel
    table = ob.OBElementTable()
  File "/home/migwell/miniconda3/envs/driverpipe/lib/python3.9/site-packages/openbabel/__init__.py", line 17, in __getattr__
    raise AttributeError
AttributeError

We should therefore follow the advice:

"import openbabel" is deprecated, instead use "from openbabel import openbabel"'