napari: Unable to install any packages/plugins in current bundle

I modified the bundled files adding a QMessageBox and ran that on the install method inside .

/Applications/napari.app/Contents/Resources/app/napari/_qt/dialogs/qt_plugin_dialog.py

    def install(self, pkg_list: Sequence[str]):
        cmd = ['-m', 'pip', 'install', '--upgrade']
        if running_as_bundled_app() and sys.platform.startswith('linux'):
            cmd += [
                '--no-warn-script-location',
                '--prefix',
                user_plugin_dir(),
            ]

        from qtpy.QtWidgets import QMessageBox
        QMessageBox.information(None, "test", " ".join([self.process.program()] + cmd + list(pkg_list)))
        self.process.setArguments(cmd + list(pkg_list))
        if self._output_widget:
            self._output_widget.clear()
        self.process.start()

Pinging @jaimergp

as noted in #3097, pinning briefcase to 0.3.1 in https://github.com/napari/napari/pull/2980 did not actually change anything about this problem, since the newer support package (with static libs) is still being used.

we’ll need to pin the support package as well, and since 3.8-b5 states that it’s the first version in static lib format, rather than binary format, we probably need to pin earlier (see here):

[tool.briefcase.app.napari.macOS]
# 3.8-b4 was the last macOS support package in binary format, rather than static lib
# for python 3.9 use 3.9-b1
support_revision = 'b4'

@goanpeca, do you have time to fix this? see #3097 … where this is still popping up

~How can I download the artifact?~

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