mod.linearize() returns wrong matrix on second call

[martinscripts]

Description

If two models are loaded and linearized, only the first call of linearize() returns the correct result. All following calls will return the first call's result.

Steps to Reproduce

from OMPython import OMCSessionZMQ
omc = OMCSessionZMQ()
model_path=omc.sendExpression("getInstallationDirectoryPath()") + "/share/doc/omc/testmodels/"
from OMPython import ModelicaSystem

mod1 = ModelicaSystem(model_path + "BouncingBall.mo","BouncingBall")
mod1.linearize()
# returns [[[0, 1], [0, 0]], [], [], []]

mod2 = ModelicaSystem(model_path + "VanDerPol.mo","VanDerPol")
mod2.linearize()
# returns [[[0, 1], [0, 0]], [], [], []]

Expected Behavior

The result of the second linearization (mod2.linearize) should be [[[0, 1], [-0.730936067860485, -0.248180066111424]], [], [], []] but it only returns that after a kernel restart and when mod2 is executed first.

Version and OS

• Python Version 3.10.11
• OMPython Version 3.5.1
• OpenModelica Version 1.22.2
• OS: win10

[arun3688]

@martinscripts the issue is fixed with this commit 891528c8009348881019c81d8d7420c1a8d3ee14, now i can get the correct results

>>> from OMPython import ModelicaSystem
>>> mod1 = ModelicaSystem("C:/OPENMODELICAGIT/OpenModelica/OMCompiler/Examples/BouncingBall.mo", "BouncingBall")
>>> mod2 = ModelicaSystem("C:/OPENMODELICAGIT/OpenModelica/OMCompiler/Examples/VanDerPol.mo", "VanDerPol")
>>> mod1.linearize()
[[[0, 1], [0, 0]], [], [], []]
>>> mod2.linearize()
[[[0, 1], [-0.730936067860485, -0.248180066111424]], [], [], []]
>>>

please update your pip package by python -m pip install -U https://github.com/OpenModelica/OMPython/archive/master.zip

[martinscripts]

Thanks @arun3688.

I had to

pip uninstall OMPython

and then

pip install git+https://github.com/OpenModelica/OMPython.git/@master

and now it works.