Hi Alberto,

Which versions of PyNN and of NEST are you using?

The current version of PyNN (0.9.6) does not work with NEST 3.0. PyNN 0.10.0 will be released soon (in September), and that will support NEST 3.
If you’re happy to install a development version of PyNN from Github, you can use this branch: https://github.com/apdavison/PyNN/tree/nest-3

Andrew


> On 27 Aug 2021, at 10:49, Alberto <vergani.aa@gmail.com> wrote:
>
> Hi,
>
> suddenly, I am starting having this error.
>
> I have both PyNN and Nest installed.
>
> If it's more related to the PyNN community, I will forward this message to them, but at this moment I don't know if it's more related to Nest or PyNN side.
>
> Maybe some of you have met a similar issue.
>
> >>> import pyNN.nest as sim
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
>   File "/home/alberto/.local/lib/python3.8/site-packages/pyNN/nest/__init__.py", line 18, in <module>
>     from . import simulator
>   File "/home/alberto/.local/lib/python3.8/site-packages/pyNN/nest/simulator.py", line 261, in <module>
>     state = _State()  # a Singleton, so only a single instance ever exists
>   File "/home/alberto/.local/lib/python3.8/site-packages/pyNN/nest/simulator.py", line 58, in __init__
>     self.spike_precision = "off_grid"
>   File "/home/alberto/.local/lib/python3.8/site-packages/pyNN/nest/simulator.py", line 114, in _set_spike_precision
>     nest.SetKernelStatus({'off_grid_spiking': True})
> AttributeError: module 'nest' has no attribute 'SetKernelStatus'
>
> Thanks,
> Alberto
>
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