pel.one
(Cri Pel One)
June 25, 2018, 9:02pm
1
Hi, I am trying to import a script that I made in Python 3.6.5 into Grasshopper using the Python script. In my code I use the following libraries:
Numpy
Pillow
Matplotlib
OR-Tools
SciPy
There is any way to use them also in the Python component in grasshopper?
thanks
NKiD
June 27, 2018, 1:22am
2
I think GH PYTHON REMOTE is what you’re looking for.
luchavy
(Luchavy)
June 28, 2018, 5:49am
3
Hi,
I used GhC_Python to use these libraries in gh, and it works pretty well ! It just has some trouble outputing gh format data (lists, trees). The workaround is to put a classical GhPython component behind to get the right format.
Cheers
pel.one
(Cri Pel One)
June 28, 2018, 6:41am
4
So using this component I can run my script as when I run it in IDLE? With all differents library?
GH Python remote seems to only work for python 2.7. Is it possible to get GH Python remote to work for Python 3.x?
@leland.curtis unfortunately any Python running in Rhino or GH is limited to 2.7 because of IronPython. See this comment on Food4Rhino .
hello
Other options include Rhino Inside CPython (needs Rhino 7 WIP) and Rhino3dm (limited capabilities) , possibly combined with rhino compute for the good stuff
-Graham
Hey, I am curious if there is any new possibility with Python for Grasshopper in Rhino 7 - I guess it is still based on IronPython?
In other words, is there now a workaround to handle Python modules within Grasshopper that are based on Python 3.7+ … thx.
diff-arch
(diff-arch)
February 6, 2021, 9:57pm
10
Yes, still IronPython.
I think everything relevant was already mentioned above.
So this means basically no? I guess the Rhino Inside approach is not suitable if you want to combine it with Grasshopper as it just allows you to work with Rhino Geometry.
diff-arch
(diff-arch)
February 7, 2021, 3:58pm
12
GH Python Remote and the CPython add-on allow limited use of CPython in Grasshopper.
Anil_verma
(Anil verma)
March 10, 2026, 10:09am
13
Installing Python packages in Rhino 8 / Grasshopper (CPython)
Rhino 8 uses its own Python environment. You can install PyPI packages directly into it using pip from PowerShell.
Example (NumPy):
& “C:\Users\username.rhinocode\py39-rh8\python.exe” -m pip install numpy
Other useful libraries for Rhino / Grasshopper / geometric computing :
NumPy (fast numerical arrays)
& “C:\Users\username.rhinocode\py39-rh8\python.exe” -m pip install numpy
SciPy (scientific computing / optimization)
& “C:\Users\username.rhinocode\py39-rh8\python.exe” -m pip install scipy
Pandas (data processing / tables)
& “C:\Users\username.rhinocode\py39-rh8\python.exe” -m pip install pandas
Shapely (computational geometry operations)
& “C:\Users\username.rhinocode\py39-rh8\python.exe” -m pip install shapely
Scikit-learn (clustering / regression / ML)
& “C:\Users\username.rhinocode\py39-rh8\python.exe” -m pip install scikit-learn
NetworkX (graph algorithms / topology)
& “C:\Users\username.rhinocode\py39-rh8\python.exe” -m pip install networkx
Test inside a Grasshopper Python component:
import numpy as np
print(np.version )
Note: the & operator is required in PowerShell because the Python path contains spaces.
use this method , working properly inside rhino 8 grasshopper Cpython
You can also use the script package manager :
Anil_verma
(Anil verma)
March 10, 2026, 12:08pm
15
Hm, but always gives errors, that’s why i choose to install vai ps.
You should probably report those, to help @eirannejad fix them.