What’s new in NEST 3.1¶
This page contains a summary of important breaking and non-breaking changes from NEST 3.0 to NEST 3.1. In addition to the release notes on GitHub, this page also contains transition information that helps you to update your simulation scripts when you come from an older version of NEST.
If you transition from a version earlier than 3.0, please see our extensive transition guide from NEST 2.x to 3.0.
Access to kernel properties¶
NEST 3.1 provides a new interface to the properties of the NEST
simulation kernel. Instead of using the traditional access methods
GetKernelStatus()
and SetKernelStatus()
,
properties can now also be set and retrieved via direct kernel
attributes.
Where you previously had nest.SetKernelStatus({"resolution": 0.2})
in your simulation script, you can now just write nest.resolution =
0.2
. Kernel attributes now come with their own docstrings and even
tab-completion works for them!
Co-dependent properties that have to be set together (for instance
min_delay
and max_delay
) can now be changed using the function
set()
on the level of the nest
module.
NEST 3.0
NEST 3.1
nest.GetKernelStatus()
nest.kernel_status
nest.GetKernelStatus('network_size')
nest.network_size
nest.SetKernelStatus({'resolution': 0.2})
nest.resolution = 0.2
nest.SetKernelStatus({ 'min_delay': 0.2, 'max_delay': 2.0 }) nest.set(min_delay=0.2, max_delay=2.0)
Deprecation information¶
The access functions
GetKernelStatus()
andSetKernelStatus()
are deprecated. They will be removed in a future version of NEST. To avoid porting trouble later on, we suggest you switch to using the new interface for kernel properties now.Model
pp_pop_psc_delta
has been deprecated since 2016 and will be removed in NEST 3.2. Please use modelgif_pop_psc_exp
instead.The nest.hl_api namespace contained the same members as nest and is being removed in NEST 3.2. All imports from nest.hl_api can be replaced by imports from nest.