How to deploy QML with PyInstaller?

Curtwagner1984

Hello,

I have a small python QML app that I'm trying to deploy to an exe file. I found this SO answer to this issue.

I wanted to use option #3. Specifically add my qml files to the QT Resource system using a QRC file and then compile it and import it into python.

The answer states that if your folder stracture is

project
│   main.py
│   main.qml

You should create a qrc file like so:

qml.qrc:

<RCC>
  <qresource>
      <file>main.qml</file>
  </qresource>
</RCC>

Then convert the qml to py like this: pyside2-rcc qml.qrc -o qml_rc.py

And then you're good to go.

The issue I'm having is, that I have multiple QML components, like so:

project
│   QML
|    |-main.qml
|    |-MainComponent.qml
|    |-RowComponent.qml
│   main.py

I've made a qrc file like the answer suggested:

<RCC>
  <qresource>
      <file>QML/main.qml</file>
      <file>QML/MainComponent.qml</file>
      <file>QML/RowComponent.qml</file>
  </qresource>
</RCC>

And then I followed the rest of the instructions.

When I give the uri of ":/QML/main.qml" to the engine like so:

 engine = QQmlApplicationEngine()
 engine.load(":/QML/main.qml")

It says it fails to load a component named MainComponent

Warning: file::/QML/main.qml:51:5: MainComponent is not a type (file::/QML/main.qml:51, file::/QML/main.qml)

Because all my QML files are in the same folder, I reference them just by calling the type name. However this seems to be insufficient when using this method.

I think I'm missing an import statement in my main.qml that would tell the engine where to file MainComponent. But I don't know what import statement it should be.

Could anyone help me out?

Curtwagner1984

OK, after more searching I found this answer form the same helpful author.

He says that when the qml files aren't in the root folder you should add
import "qrc:/QML in the main file so it could see other components in the qrc file. (This path is specfic to my case because my qml files are in ./qml folder.)

On thing to note that might seem obvious but I spent quite a few tries to figure it out is that you must compile the qrc file
to py after every change you make to the qml files.

Meaning running pyside2-rcc qml.qrc -o qml_rc.py. Otherwise the imports won't update, and you'll be stuck trying to figure out why the changes you're making don't affect anything.