Impossible to import single phase flow

[Francesco Radica]

Dear users, after putting this string as there is written in the tutorials:

from porepy.models.fluid_mass_balance import SinglePhaseFlow

I got the following error:

python3.10 test2.py
Traceback (most recent call last):
  File "/Users/francyrad/Documents/porepy/simulations/test2.py", line 3, in <module>
    from porepy.models.incompressible_flow_model import SinglePhaseFlow
ImportError: cannot import name 'SinglePhaseFlow' from 'porepy.models.incompressible_flow_model' (/opt/homebrew/lib/python3.10/site-packages/porepy/models/incompressible_flow_model.py)
francyrad@MacBook-Pro-di-Francesco simulations % python3.10 test2.py
Traceback (most recent call last):
  File "/Users/francyrad/Documents/porepy/simulations/test2.py", line 3, in <module>
    from porepy.models.fluid_mass_balance import SinglePhaseFlow
ModuleNotFoundError: No module named 'porepy.models.fluid_mass_balance'

Is there been an update and tutorials have not been updated?
Thank you for the availability

[Jhabriel Varela]

Dear Francesco,

Your first import will not work with the latest version of PorePy since incompressible_flow_model.py no longer exists. We have moved to a new way of defining models in PorePy (see the release notes https://github.com/pmgbergen/porepy/releases/tag/v1.7.0).

However, the second import, e.g.,

from porepy.models.fluid_mass_balance import SinglePhaseFlow

should work. At least, locally, I have no problems importing the class. My best guess is that you are having some issues with your installation.

P.D.: There is a tutorial on how to set up models, see e.g., https://github.com/pmgbergen/porepy/blob/develop/tutorials/single_phase_flow.ipynb.

[Francesco Radica]

I had installation issues with 4 different versions of python. I solved the problem. Thank you very much!