Run by Python

Tunny performs optimization by running Optuna, a Python optimization library, from Grasshopper. How this is achieved is the same as RhinoCode, a feature available from Rhino8, using a library called Pythonnet.

When Tunny is launched for the first time, several libraries are automatically installed. This downloads the Python runtime environment to your computer. If you have used Python before, look in the folder where the "Tunny.gha" file is located. The python runtime environment is created in the folder "python-3.10.0-embed-amd64".

Therefore, execute the following command in that installed Python folder.

$ ./python.exe

Then the interactive mode of the Python environment used by Tunny will be started as follows.

Python 3.10.0 (tags/v3.10.0:b494f59, Oct  4 2021, 19:00:18) [MSC v.1929 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information. 
>>>

The following command confirms that the libraries required for optimization have already been installed by Tunny.

$ ./python.exe -m pip list

The following results will be output.

Package           Version
----------------- -------
alembic           1.8.0
attrs             21.4.0
autopage          0.5.1
botorch           0.6.5
bottle            0.12.21
cliff             3.10.1
...

Since Tunny only uses this environment, you can perform optimizations and chart the results from the code just as you would from regular Python code. In this chapter, you will learn how to do this.