py.CoolProp.CoolProp.PropsSI not working
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Hello,
I'm working with CoolProp in Matlab. I have everything installed from Python, but when I introduce these expressions:
[v,e] = pyversion; system([e,' -m pip install --user -U CoolProp'])
py.CoolProp.CoolProp.PropsSI('T','P',100000,'Q',0,'Water')
it gives me this error:
Undefined variable "py" or class "py.CoolProp.CoolProp.PropsSI"
Last week this was working...
Some help?
Thank you.
1 comentario
Respuestas (2)
Mustafa Anjrini
el 14 de Mayo de 2020
Editada: Mustafa Anjrini
el 15 de Mayo de 2020
hello
it has happened with me too since two days i think when the CoolProp updated itself automatically to 6.4.0.
the same error massage appears when i run the command.
need help too in this issue.
thank you.
4 comentarios
Ting Liang
el 18 de Mzo. de 2021
Hi, Maria,
Excuse me.
I am now using CoolProp in MATLAB and Simulink, it is to transfer temperature vector from Simulink(Simulink model, picture1) to MATLAB(Matlab model, picture2), and then call for CoolProp to calculate the thermal properties of air (Temperature range 80 - 300 K, Pressure 10 MPa, supercritical region), but every time when I run the whole simulink model, it always reported the error shown as picture3.
Could you please tell me what's the problems? How to deal with this problem?
Thanks, and looking forward to your reply.
Best regards
Ben Adams
el 11 de Jun. de 2020
Hello--
It seems all versions of python/coolprop do not work in Matlab 2019b. For instance, matlab does not support python version 3.8 yet.
The versions that worked for me were Python 3.7.3, CoolProp 6.2.1, Matlab 2019b. Coolprop 6.4.0 did not work, nor did python 3.8.
1 comentario
José A. Almendros-Ibáñez
el 31 de Jul. de 2020
For me is working under Matlab R2020a with Python 3.7.3. and CoolProp 6.4.0.
With Python 3.8 it does not work.
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