appload fail on AUTOCAD2026

[war16641]

i have been using PyRx for some time on AUTOCAD2026. and made some useful python script to help my work. but yesterday APPLOAD failed. when RxLoader25.1.arx loaded, AUTOCAD show a error. RxLoader25.1.arx load succes, but failed loading pyrx25.1.arx .see picture below.
how to fix it?

[CEXT-Dan]

Pyrx25.1 cannot find wxPython path.

• (setenv "PYRX_LOG" "1")
• Restart CAD
• Appload RxLoader25.1.arx
• Run command PYRXLOADLOG

[war16641]

wxpython has been installed.
command PYRXLOADLOG print:
命令: PYRXLOADLOG
Log:
PyRxLoader::getPythonVenvPath
PyRxLoader::thisModulePath d:\software\python_machine\lib\site-packages\pyrx
PyRxLoader::getPythonVenvPath
PyRxLoader::tryFindPythonPathFromParent d:\software\python_machine
PyRxLoader::getInstallPath d:\software\python_machine\Lib\site-packages\pyrx
PyRxLoader::getPythonVenvPath
PyRxLoader::tryFindWxPythonPath d:\software\python_machine\Lib\site-packages\wx
Wed Feb 25 16:00:30 2026
added path @ PyRxLoader::setenvpath 354 d:\software\python_machine
added path @ PyRxLoader::setenvpath 354 d:\software\python_machine\Lib\site-packages\wx
Loading PyRx from normal condition
PyRxLoader::PyRxLoader_loader Loading, d:\software\python_machine\lib\site-packages\pyrx\PyRx25.1.arx
PyRxLoader_loader @loadModule FAILED

[CEXT-Dan]

I don’t know, looks correct. What changed from when it was working?

[CEXT-Dan]

a7eeb51

I added a fresh build to the repository. I added a new command PYRXLOADENV. This will print out the actual DLL paths for AutoCAD. I also added more logging in PYRXLOADLOG.

Edit: You can copy PyRx25.1.arx and RxLoader25.1.arx to d:\software\python_machine\lib\site-packages\pyrx

[war16641]

命令: PYRXLOADENV
d:\software\python_machine\lib\site-packages\wx;d:\software\python_machine;d:\autocad 2026\zh-cn;c:\program files\nvidia gpu computing toolkit\cuda\v13.0\bin\x64;c:\program files\nvidia gpu computing toolkit\cuda\v13.0\bin;g:\program files (x86)\vmware\vmware workstation\bin;d:\software\python_machine\scripts;d:\software\python_machine;c:\windows\system32;c:\windows;c:\windows\system32\wbem;c:\windows\system32\windowspowershell\v1.0;c:\windows\system32\openssh;c:\program files\dotnet;c:\program files (x86)\nvidia corporation\physx\common;c:\program files\git\cmd;c:\program files\tortoisesvn\bin;c:\program files\nvidia corporation\nvidia app\nvdlisr;c:\program files\nvidia corporation\nsight compute 2025.3.1;c:\program files (x86)\windows kits\10\windows performance toolkit;c:\users\nyh\appdata\local\microsoft\windowsapps;c:\users\nyh\appdata\local\programs\microsoft vs code\bin;c:\users\nyh\appdata\local\pandoc;c:\users\nyh\appdata\roaming\autodesk\autocad 2026\r25.1\chs\support;d:\autocad 2026\support;d:\autocad 2026\support\zh-cn;d:\autocad 2026\fonts;d:\autocad 2026\help;d:\autocad 2026\express;c:\program files (x86)\autodesk\applicationplugins\autodesk appmanager.bundle\contents\windows;c:\program files (x86)\autodesk\applicationplugins\autodesk appmanager.bundle\contents\windows\2026;c:\program files (x86)\autodesk\applicationplugins\autodesk featuredapps.bundle\contents\resources;d:\autocad 2026;d:\autocad 2026\drv
命令: PYRXLOADLOG
Log:
PyRxLoader::getPythonVenvPath
PyRxLoader::thisModulePath d:\software\python_machine\lib\site-packages\pyrx
PyRxLoader::getPythonVenvPath
PyRxLoader::tryFindPythonPathFromParent d:\software\python_machine
PyRxLoader::getInstallPath d:\software\python_machine\Lib\site-packages\pyrx
PyRxLoader::getPythonVenvPath
PyRxLoader::tryFindWxPythonPath d:\software\python_machine\Lib\site-packages\wx
Wed Feb 25 18:45:16 2026
added path @ PyRxLoader::setenvpath 354 d:\software\python_machine;
added path @ PyRxLoader::setenvpath 354 d:\software\python_machine\lib\site-packages\wx;
Loading PyRx from normal condition
PyRxLoader::PyRxLoader_loader Loading, D:\software\python_machine\lib\site-packages\pyrx\PyRx25.1.arx
PyRxLoader_loader @loadModule FAILED

[CEXT-Dan]

Looks correct, Sorry I don’t have an answer for you, maybe check that these files exist

d:\software\python_machine\python312.dll
d:\software\python_machine\Lib\site-packages\wx\wxbase32u_vc140_x64.dll
d:\software\python_machine\Lib\site-packages\wx\wxmsw32u_core_vc140_x64.dll

[CEXT-Dan]

Another thing you can try is downloading Dependencies

• Launch the tool and open PyRx25.1.arx
• Inside, you will see a list of dependencies
• begin to satisfy the errors by adding the search paths Python / wx / AutoCAD install folders

Additionally, you can find older versions on PyPi if it is something I broke. However, you never answered the question of what changed, that's going to be the clue.

[war16641]

dependencies tool shows no error after adding AUTOCAD/wx folders.
appload begin showing failure after i activate other autocad toolbox, 常青藤辅助工具箱. its website is http://www.icqt.net . i have uninstalled 常青藤辅助工具箱. but the appload failure still retains.

[CEXT-Dan]

Could be some conflict with that software, i.e. if it overwrote a runtime or some other .DLL. It loads fine on my development machine, I also tested on a clean system and it loads as well. I can't install other software to test for compatibility.

[CEXT-Dan]

Try downloading this bundle

• Unzip the folder into ApplicationPlugins folder, example \Program Files\Autodesk\ApplicationPlugins or \AppData\Roaming\Autodesk\ApplicationPlugins
• navigate to ApplicationPlugins\pyrx_embedded.bundle\Contents\Python\ and launch PowerShell
• run the cmd .\python.exe -m pip install cad-pyrx -U --no-warn-script-location
• Launch AutoCAD

This should remove doubts about any python paths, it uses embedded

Edit Here’s another link if you don’t have 7-Zip bundle-zip

[CEXT-Dan]

I added a repository for embedded

[war16641]

uninstall autocad2026 and install autocad2025. finally pyrx comes back!
i think the reason has nothing with pyrx. maybe the appload failure attribute to autocad itself . less likely, attribute to other plugin. because now both of them work fine on autocad. i will keep observing.
thank you a lot for all these answers.