ImportError: cannot import name 'sa' from 'simulated_annealing'

[revquiet]

I encountered an issue when trying to import sa from the simulated_annealing module in tools/sysid/sysid.py. The import statement fails so i installed the module using pip:

pip install simulated-annealing

the following error arises:

cannot import name 'sa' from 'simulated_annealing' (/home/test/miniconda3/envs/simpler_env/lib/python3.10/site-packages/simulated_annealing/__init__.py) 
  File "/home/test/Code/git_repo/SimplerEnv/tools/sysid/sysid.py", line 11, in <module>
    from simulated_annealing import sa
ImportError: cannot import name 'sa' from 'simulated_annealing' (/home/test/miniconda3/envs/simpler_env/lib/python3.10/site-packages/simulated_annealing/__init__.py)

I am using version 0.4.0 of simulated-annealing, Upon inspecting the init.py file in the installed module directory, I noticed there is no reference to sa, nor any indication of its availability. If sa is not part of the package, it would be very helpful if the documentation could clarify its usage or provide a module of sa to guide me on how to achieve similar functionality.

Thank you for your help and guidance!

[revquiet]

When I modified the code as follows:

import simulated_annealing as sa

I encountered an error indicating that the sa module does not have the minimize() method. How can I correctly import this module and perform the corresponding system identification?

Could you please advise on the appropriate steps to resolve this issue?

[xuanlinli17]

Did you pip install git+https://github.com/nathanrooy/simulated-annealing, not pip install simulated-annealing?