Can I use matplotlib in Dynamo?

[c.poupin]

Yes you can use it, except the plt.show() method
example of workaround here

Python 3 Skelitonization - plt.show() not work

Finally, I found a better (faster) way with Stream conversion, (Bitmap.SetPixel() is too slow) [waveSinCos] import sys import clr import System clr.AddReference('ProtoGeometry') from Autodesk.DesignScript.Geometry import * dirAppLoc = System.Environment.GetFolderPath(System.Environment.SpecialFolder.LocalApplicationData) sys.path.append(dirAppLoc + r'\python-3.8.3-embed-amd64\Lib\site-packages') clr.AddReference('System.Drawing') import System.Drawing from System.Drawing import * from System…