topic Re: Python programming in autocad in Visual LISP, AutoLISP and General Customization Forum

Python programming in autocad

Oliver_C3D — Mon, 30 Jul 2018 14:13:11 GMT

Can I write to the AutoCAD program or extension with Python?
If you can provide a tutorial or reference file in this case?

Re: Python programming in autocad

_gile — Mon, 30 Jul 2018 15:40:17 GMT

Hi,

You can use the pyautocad library with the AutoCAD COM API or IronPython with the AutoCAD .NET API (and also the COM API).

Re: Python programming in autocad

serag.hassouna — Mon, 20 Aug 2018 23:30:44 GMT

In addition to what @_gile said, there's the comtypes package.
If you understand AutoCAD's object model, you can invoke almost every method and fetch almost every value.
However, the main downside of comtypes is that you need to supply all arguments to every method you invoke, even the optional ones need to be explicitly supplied.
________
To catch the feeling of how it is "simple in theory" to connect to AutoCAD with python you can see the included code within this question of mine about an issue.
Postcommand doesn't read AutoLisp expression [Python 2.7 & AutoCAD 2016 Windows]

Re: Python programming in autocad

rantaliran — Wed, 05 Jan 2022 12:45:58 GMT

hello serag.hassouna ,

I wanted to ask you for more detailed instructions, on how can I receive specific measurement from AutoCAD (maybe student addition) to a python program:)))

thank you for your help!

Ran

Re: Python programming in autocad

Chuong.Ho — Sun, 27 Nov 2022 02:13:07 GMT

You can use project cadpythonshell, An IronPython console for Autocad and Civil 3d API, include full snoop Database to explore CAD.

https://github.com/chuongmep/CadPythonShell

Re: Python programming in autocad

joneshosting_usts — Fri, 09 Jan 2026 10:56:19 GMT

Use AutoCAD python library an best python library with more features
You can do many thing like handling blocks, layers, groups, properties, ect....
https://jsweb-tech.github.io/AutoCAD/

> pip instal autocad

from AutoCAD import AutoCAD, APoint cad = AutoCAD() # Circle circle = cad.add_circle(APoint(0, 0, 0), radius=5) # Line line = cad.add_line(APoint(0, 0, 0), APoint(10, 10, 0)) # Rectangle rect = cad.add_rectangle(APoint(0, 0, 0), APoint(10, 5, 0)) # Ellipse ellipse = cad.add_ellipse( center=APoint(20, 20, 0), major_axis=APoint(30, 0, 0), ratio=0.5 )