Python (Native Python)

bindings for C++:
AutoCAD® ObjectARX® 2021-2025
ZwCAD® ZRX® 2024-2025
GstarCAD® GRX® 2024-2025
BricsCAD® BRX® v24-v25

bindings for ActiveX
AutoCAD® 2021-2025
BricsCAD v24-v25
GstarCAD 2024-2025
ZwCAD 2024-2025

uses wxPython for the GUI, Dialogs and CAdUiPalette wrapper

Embeds Python (3.12) and wxPython(4.2.1) into a loadable ARX module

Read ths install info here https://github.com/CEXT-Dan/PyRx/blob/main/READMEINSTALL.md
Get the latest build from https://github.com/CEXT-Dan/PyRx/releases

On loading the ARX/BRX/GRX/ZRX module, the following commands are added to AutoCAD
PYLOAD:
Use this command to load your python modules.

PYRELOAD:
Use this command to reload your python modules.

PYCMDPROMPT:
Provides simple access to the python interpreter

PYRXVER:
Prints the ARX module version

Autolisp:
(adspyload PATH) returns T or nil
(adspyreload PATH) returns T or nil
(adspyloaded) returns a list of loaded modules

#PyRx sample:

#imports 
from pyrx_imp import Rx, Ge, Gi, Db, Ap, Ed, Sm
import traceback

 # these four functions are called as they would be in ARX
def OnPyInitApp():
    print("\nOnPyInitApp")
    print("\ncommand = pydoit")

def OnPyUnloadApp():
    print("\nOnPyUnloadApp")

def OnPyLoadDwg():
    print("\nOnPyLoadDwg")

def OnPyUnloadDwg():
    print("\nOnPyUnloadDwg")

 # functions that are prefixed with PyRxCmd_ are registered as AutoCAD commands
def PyRxCmd_pydoit():
    try:
        db = Db.HostApplicationServices().workingDatabase()

        # create a line
        line = Db.Line()
        line.setDatabaseDefaults()

        # use Ge point
        line.setStartPoint(Ge.Point3d(0, 0, 0))
        line.setEndPoint(Ge.Point3d(100, 100, 0))

        # set a color
        color = Db.Color()
        color.setRGB(255, 255, 0)
        line.setColor(color)

        # open modelspace for write and add the entity
        model = Db.BlockTableRecord(db.modelSpaceId(), Db.OpenMode.ForWrite)
        model.appendAcDbEntity(line)

    except Exception as err:
        print(err)

#ActiveX sample:

from pyrx_impx import Rx, Ge, Gi, Db, Ap, Ed, Ax
import traceback

def PyRxCmd_makeTable():
    try:
        axApp = Ax.getApp()
        axDoc = axApp.ActiveDocument
        
        tablePnt = axDoc.Utility.GetPoint("\nTable location: ")
        axDoc.ModelSpace.AddTable(tablePnt, 5, 5, 10, 30)
        
    except Exception as err:
        traceback.print_exception(err)


def PyRxCmd_hitTest():
    try:
        axApp = Ax.getApp()
        axDoc = axApp.ActiveDocument

        hitVec = (0, 0, 1)  # kZaxis
        hitPnt = axDoc.Utility.GetPoint("\nSelect cell: ")
        minmax = hitPnt + axDoc.GetVariable("VSMAX")

        axSs = axDoc.SelectionSets.Add("AXTBLSS")
        axSs.SelectByPolygon(
            Ax.constants.acSelectionSetFence, minmax, [0], ["ACAD_TABLE"]
        )

        for axEnt in axSs:
            axTable = Ax.IAcadTable(axEnt)
            hit = axTable.HitTest(hitPnt, hitVec)
            if hit[0]:
                cellstr = "Cell={},{}".format(hit[1], hit[2])
                axTable.SetTextString(hit[1], hit[2], 0, cellstr)
                return

    except Exception as err:
        traceback.print_exception(err)
    finally:
        axSs.Delete()

Create GUIs with wxPython, bindings for dialogs and palettes

,

Generated stub files for built in help, autocomplete

,

Debugging support with debugpy

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Blogs: https://pyarx.blogspot.com/ Discussion forum: https://www.theswamp.org/index.php?board=76.0