AttributeError: 'Geometry' object has no attribute 'n_iters'

[EB79]

Hi, I hope you're doing well.

I installed all the required libraries based on your instructions, but I encountered an issue while running d02_parameters.py from the demo files.

After inspecting the line:

from LION.CTtools.ct_geometry import Geometry

I noticed that the Geometry class does not contain an attribute called n_iters. As a result, I am unable to run:

from LION.models.iterative_unrolled.LPD import LPD

Could you help me resolve this issue?

---

[AnderBiguri]

Hi @EB79 , apologies, LION is still work in progress and sometimes a bit buggy.

n_iters should be part of moder_parameters which is not the geometry but in this case LPD_params. It seems that there is a bug in the argument order that you are giving (maybe from my flawed documentation.

The trace of LPD is:

LION/LION/models/iterative_unrolled/LPD.py

Lines 108 to 115 in 3f1444d

	class LPD(LIONmodel):
	"""Learned Primal Dual network"""
	def __init__(
	self,
	geometry: ct.Geometry,
	model_parameters: LIONParameter = None,
	):

meaning it takes first geometry and then model_parameters. in your code, if you just do

model = LPD(geo, LPD_params)
# or
model = LPD(model_parameters=LPD_params, geometry=geo)

the error should be gone.

This definetly needs more documentation and error checking, which I will hopefully add, so leave the issue open so I can tackle it.