Allow to prepare appdir but not packing the appimage.

[JocelynDelalande]

In cases where other manual steps are required to prepare the appdir before packaging.

[niess]

I could add such an option indeed.

As a workaround, for now you can extract the image produced by python-appimage as:

./my-app.AppImage --appimage-extract
mv squashfs-root AppDir

Then modify the AppDir and repackage. Is that OK?

[JocelynDelalande]

Sure works, but less handy and more time consuming :-).