ValueError: invalid literal for int() with base 10: '' (api/utils.py:216)

[alanbchristie]

While testing an experimental stack I stumbled upon numerous ValueError exceptions from the apu/util.py module while trying to display vectors. The full stack trace is: -

Internal Server Error: /viewer/img_from_smiles/
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/dist-packages/django/core/handlers/exception.py", line 47, in inner
    response = get_response(request)
  File "/usr/local/lib/python3.7/dist-packages/django/core/handlers/base.py", line 179, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/code/viewer/views.py", line 1335, in img_from_smiles
    return get_params(smiles, request)
  File "/code/api/utils.py", line 285, in get_params
    request.GET["atom_indices"], mol
  File "/code/api/utils.py", line 216, in parse_atom_ids
    atom_ids.append(int(spl_list[i]))
ValueError: invalid literal for int() with base 10: ''