Reply to Debugging MWE of pyside6-deploy with WebEngine on Sun, 01 Mar 2026 19:26:45 GMT

Mitchal Dichter — Sun, 01 Mar 2026 19:26:45 GMT

So not exactly a solution, but pyinstaller on windows is working at this time, although it often breaks with new releases of pyside and different operating systems.

Including all the stuff for WebEngine is a chronic problem for things like nuitka and pyinstaller because pyside can change the location of WebEngine stuff and different operating systems need stuff in different places. Code signing is also a chronic problem.

Reply to Debugging MWE of pyside6-deploy with WebEngine on Sat, 21 Feb 2026 01:37:27 GMT

Mitchal Dichter — Sat, 21 Feb 2026 01:37:27 GMT

I got dumpbin by installing Visual Studio and the "Desktop development with C++" workload with the Visual Studio Installer. Then I found dumpbin.exe and modified the path. So that error went away.

Still has similar errors with nuitka though. Way over my head how to fix those.

cmd

(env) C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy>pyside6-deploy
Traceback (most recent call last):
  File "C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\env\Lib\site-packages\nuitka\__main__.py", line 206, in 
    main()
    ~~~~^^
  File "C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\env\Lib\site-packages\nuitka\__main__.py", line 188, in main
    MainControl.main()
    ~~~~~~~~~~~~~~~~^^
  File "C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\env\Lib\site-packages\nuitka\MainControl.py", line 1160, in main
    _main()
    ~~~~~^^
  File "C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\env\Lib\site-packages\nuitka\MainControl.py", line 999, in _main
    main_module = _createMainModule()
  File "C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\env\Lib\site-packages\nuitka\MainControl.py", line 146, in _createMainModule
    main_module = buildMainModuleTree(
        source_code=None,
    )
  File "C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\env\Lib\site-packages\nuitka\tree\Building.py", line 1186, in buildMainModuleTree
    module.setStandardLibraryModules(
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
        early_module_names=detectEarlyImports(),
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        stdlib_modules_names=detectStdlibAutoInclusionModules(),
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\env\Lib\site-packages\nuitka\nodes\ModuleNodes.py", line 961, in setStandardLibraryModules
    assert finding != "not-found", early_module_name
           ^^^^^^^^^^^^^^^^^^^^^^
AssertionError: collections.abc
[DEPLOY] Exception occurred: Traceback (most recent call last):
  File "C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\env\Lib\site-packages\PySide6\scripts\deploy_lib\commands.py", line 27, in run_command
    subprocess.check_call(command, shell=is_windows)
    ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\mldic\AppData\Local\Programs\Python\Python313\Lib\subprocess.py", line 419, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '[WindowsPath('C:/Users/mldic/Documents/GitHub/BEMinstructionals.github.io/dev/testing_deploy/env/Scripts/python.exe'), '-m', 'nuitka', 'C:\\Users\\mldic\\Documents\\GitHub\\BEMinstructionals.github.io\\dev\\testing_deploy\\main.py', '--follow-imports', '--enable-plugin=pyside6', '--output-dir=C:\\Users\\mldic\\Documents\\GitHub\\BEMinstructionals.github.io\\dev\\testing_deploy\\deployment', '--quiet', '--noinclude-qt-translations', '--onefile', '--noinclude-dlls=*.cpp.o', '--noinclude-dlls=*.qsb', '--windows-icon-from-ico=C:\\Users\\mldic\\Documents\\GitHub\\BEMinstructionals.github.io\\dev\\testing_deploy\\env\\Lib\\site-packages\\PySide6\\scripts\\deploy_lib\\pyside_icon.ico', '--include-qt-plugins=networkinformation,platforminputcontexts,position,qmltooling']' returned non-zero exit status 1.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\env\Lib\site-packages\PySide6\scripts\deploy.py", line 152, in main
    command_str = nuitka.create_executable(source_file=config.source_file,
                                           extra_args=config.extra_args,
    ...<5 lines>...
                                           permissions=config.permissions,
                                           mode=config.mode)
  File "C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\env\Lib\site-packages\PySide6\scripts\deploy_lib\nuitka_helper.py", line 178, in create_executable
    command_str, _ = run_command(command=command, dry_run=dry_run)
                     ~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\env\Lib\site-packages\PySide6\scripts\deploy_lib\commands.py", line 33, in run_command
    raise RuntimeError(
    ...<2 lines>...
    )
RuntimeError: [DEPLOY] Command C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\env\Scripts\python.exe -m nuitka C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\main.py --follow-imports --enable-plugin=pyside6 --output-dir=C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\deployment --quiet --noinclude-qt-translations --onefile --noinclude-dlls=*.cpp.o --noinclude-dlls=*.qsb --windows-icon-from-ico=C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\env\Lib\site-packages\PySide6\scripts\deploy_lib\pyside_icon.ico --include-qt-plugins=networkinformation,platforminputcontexts,position,qmltooling failed with error Command '[WindowsPath('C:/Users/mldic/Documents/GitHub/BEMinstructionals.github.io/dev/testing_deploy/env/Scripts/python.exe'), '-m', 'nuitka', 'C:\\Users\\mldic\\Documents\\GitHub\\BEMinstructionals.github.io\\dev\\testing_deploy\\main.py', '--follow-imports', '--enable-plugin=pyside6', '--output-dir=C:\\Users\\mldic\\Documents\\GitHub\\BEMinstructionals.github.io\\dev\\testing_deploy\\deployment', '--quiet', '--noinclude-qt-translations', '--onefile', '--noinclude-dlls=*.cpp.o', '--noinclude-dlls=*.qsb', '--windows-icon-from-ico=C:\\Users\\mldic\\Documents\\GitHub\\BEMinstructionals.github.io\\dev\\testing_deploy\\env\\Lib\\site-packages\\PySide6\\scripts\\deploy_lib\\pyside_icon.ico', '--include-qt-plugins=networkinformation,platforminputcontexts,position,qmltooling']' returned non-zero exit status 1. and return_code1

ERROR:root:[DEPLOY] Executable not found at C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\deployment\main.exe

pysidedeploy.spec

[app]

# title of your application
title = pyside_app_demo

# project directory. the general assumption is that project_dir is the parent directory
# of input_file
project_dir = C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy

# source file path
input_file = C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\main.py

# directory where the executable output is generated
exec_directory = .

# path to .pyproject project file
project_file = 

# application icon
icon = C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\env\Lib\site-packages\PySide6\scripts\deploy_lib\pyside_icon.ico

[python]

# python path
python_path = C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\env\Scripts\python.exe

# python packages to install
packages = Nuitka==2.5.1

# buildozer = for deploying Android application
android_packages = buildozer==1.5.0,cython==0.29.33

[qt]

# comma separated path to qml files required
# normally all the qml files required by the project are added automatically
qml_files = 

# excluded qml plugin binaries
excluded_qml_plugins = 

# qt modules used. comma separated
modules = QmlModels,Network,QuickWidgets,Widgets,Gui,WebEngineCore,Positioning,PrintSupport,Quick,Core,OpenGL,WebEngineWidgets,Qml,WebChannel,QmlWorkerScript,QmlMeta

# qt plugins used by the application. only relevant for desktop deployment. for qt plugins used
# in android application see [android][plugins]
plugins = scenegraph,networkinformation,printsupport,egldeviceintegrations,accessiblebridge,platforms/darwin,platforminputcontexts,xcbglintegrations,tls,generic,iconengines,qmltooling,platformthemes,imageformats,networkaccess,platforms,position,styles

[android]

# path to pyside wheel
wheel_pyside = 

# path to shiboken wheel
wheel_shiboken = 

# plugins to be copied to libs folder of the packaged application. comma separated
plugins = 

[nuitka]

# usage description for permissions requested by the app as found in the info.plist file
# of the app bundle
# eg = extra_args = --show-modules --follow-stdlib
macos.permissions = 

# mode of using nuitka. accepts standalone or onefile. default is onefile.
mode = onefile

# (str) specify any extra nuitka arguments
extra_args = --quiet --noinclude-qt-translations

[buildozer]

# build mode
# possible options = [release, debug]
# release creates an aab, while debug creates an apk
mode = debug

# contrains path to pyside6 and shiboken6 recipe dir
recipe_dir = 

# path to extra qt android jars to be loaded by the application
jars_dir = 

# if empty uses default ndk path downloaded by buildozer
ndk_path = 

# if empty uses default sdk path downloaded by buildozer
sdk_path = 

# other libraries to be loaded. comma separated.
# loaded at app startup
local_libs = 

# architecture of deployed platform
# possible values = ["aarch64", "armv7a", "i686", "x86_64"]
arch =

nuitka-crash-report.xml



  
Traceback (most recent call last):
  File "C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\env\Lib\site-packages\nuitka\MainControl.py", line 1160, in main
    _main()
    ~~~~~^^
  File "C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\env\Lib\site-packages\nuitka\MainControl.py", line 999, in _main
    main_module = _createMainModule()
  File "C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\env\Lib\site-packages\nuitka\MainControl.py", line 146, in _createMainModule
    main_module = buildMainModuleTree(
        source_code=None,
    )
  File "C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\env\Lib\site-packages\nuitka\tree\Building.py", line 1186, in buildMainModuleTree
    module.setStandardLibraryModules(
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
        early_module_names=detectEarlyImports(),
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        stdlib_modules_names=detectStdlibAutoInclusionModules(),
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "C:\Users\mldic\Documents\GitHub\BEMinstructionals.github.io\dev\testing_deploy\env\Lib\site-packages\nuitka\nodes\ModuleNodes.py", line 961, in setStandardLibraryModules
    assert finding != "not-found", early_module_name
           ^^^^^^^^^^^^^^^^^^^^^^
AssertionError: collections.abc

I haven't found much on pyside6-deploy, and running with nuikta directly gets the same trace.

Getting WebEngine into an installer is difficult because there's a separate executable and other things for Chromium. Some people have had success by manually copying some files rather than relying on a tool like pyside6-deploy. I'd rather not do that though.

Reply to Debugging MWE of pyside6-deploy with WebEngine on Sat, 14 Feb 2026 21:46:54 GMT

SGaist — Sat, 14 Feb 2026 21:46:54 GMT

Hi,

I haven't yet used that tool, especially on Windows but did you see the warning about dumpbin not being found ?
That might help you get better result.