[Pythonmac-SIG] Universal build launches as Intel on M1

[Aivar Annamaa]

Jack and Ned, thanks a lot!

I had forgotten about Distribution.plist. Will try the suggested value in
the next beta.

Best regards,
Aivar

On Tue, Mar 29, 2022 at 12:45 AM Ned Deily <nad at python.org> wrote:

> On 28 Mar 2022, at 10:08, Aivar Annamaa <aivar.annamaa at gmail.com> wrote:
> > I have an app bundle, with embedded python.org's universal build of
> Python 3.10.2 framework and a Tkinter-based GUI (
> https://github.com/thonny/thonny/releases/tag/v4.0.0b1)
> >
> > I've used IDLE's approach in the Info.plist, and the launcher script.
> Functionally all is working fine, but a M1 user reported, that when opened
> from Finder, the app is launched in "Intel" mode. When the launcher is
> invoked in Terminal (/Applications/Thonny.app/Contents/MacOS/thonny), the
> app gets run in AMD64 mode. I don't have a M1 myself, so I haven't
> reproduced it myself.
> >
> > The same user now said that latest IDLE (3.10.4) runs in AMD64 mode even
> when launched from Finder.
> >
> > Any ideas what to check or try in order to make my app run in native
> mode?
> >
> > My launcher script template is here:
> https://github.com/thonny/thonny/blob/master/packaging/mac/Thonny.app.initial_template/Contents/MacOS/thonny
> (shebang becomes gets set to
> .../Thonny.app/Contents/Frameworks/Python.framework/Versions/3.10/Resources/Python.app/Contents/MacOS/Python
> by the postinstall script)
> >
> > Info.plist template is here:
> https://github.com/thonny/thonny/blob/master/packaging/mac/Thonny.app.initial_template/Contents/Info.plist
>
>
> It looks the problem is in your Distribution.plist; change the
> hostArchitectures to "arm64,x86_64".  Otherwise, the macOS installer
> assumes your app can only run as an Intel binary.
>
>
> https://github.com/thonny/thonny/blob/a9d12ba961eac875dc4a77ac1fb226baf5c3acc9/packaging/mac/Distribution.plist#L9
>
> --
>   Ned Deily
>   nad at python.org -- []
>
>
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