TypeError: 'numpy.float64' object does not support item assignment

[tillea]

Hi,
in Debian we run some CI test which is triggered like this:

 python3 test_model.py

(where test_model.py code can be downloaded here. This leads to

Traceback (most recent call last):
  File "/tmp/autopkgtest-lxc.d39z3x5o/downtmp/autopkgtest_tmp/test_model.py", line 20, in <module>
    model.run(T=300, checkpoints=checkpoints)
  File "/usr/lib/python3/dist-packages/seirsplus/models.py", line 1366, in run
    running = self.run_iteration()
              ^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/seirsplus/models.py", line 1248, in run_iteration
    self.timer_state[transitionNode] = 0.0
    ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
TypeError: 'numpy.float64' object does not support item assignment

You can find the full build log in Debian CI. The version fo seirsplus is the tag 1.1.0.

Kind regards, Andreas.