Re: [gtk-osx-users] pygobject3 installation with Python 2.

[John Ralls <jralls ceridwen us>]

> On Apr 1, 2021, at 1:00 PM, Pascal <p p14 orange fr> wrote:
>
> > Le 1 avr. 2021 à 05:18, John Ralls <jralls ceridwen us> a écrit :
> >
> > > On Mar 31, 2021, at 12:27 PM, Pascal <p p14 orange fr> wrote:
> > >
> > > Hello,
> > >
> > > I've built pygobject with the following command:
> > > % jhbuild build pygobject3
> > >
> > > It installs python stuff only in $prefix/lib/python3.8.
> > >
> > > The GTK based program I'm porting to macOS uses Python 2.7 (I hope not for a very long time) and it 
> > > issues the error:
> > > ImportError: No module named gi
> > >
> > > How to tell the installer to put also files in $prefix/lib/python2.7?
> > >
> > > Note: "jhbuild build pygobject" doesn't install gi stuff.
> >
> > Pascal,
> >
> > Assuming that you're building both python and python3 and that you've gotten the names in $PREFIX/bin 
> > sorted, try passing -Dpython=python2 as an additional mesonarg to pygobject3.
>
> Many many thanks John, this did the job :-)
>
> However, I got:
> Run-time dependency pycairo found: NO (tried pkgconfig, framework and cmake)
>
> Thus I had to rebuild pycairo for Python 2 with the same extra option and it did the job:
>
> % jhbuild shell
> % cd pycairo-1.18.1
> % mkdir build
> % cd build
> % meson -Dpython=python2 --prefix /opt/xnadalib-2020 --libdir lib  --wrap-mode=nofallback 
> /opt/src-2020/pycairo-1.18.1
> % ninja
> % ninja install
> % pkg-config pycairo --libs
> % meson -Dpython=python2 --prefix /opt/xnadalib-2020 --libdir lib  --wrap-mode=nofallback 
> /opt/src-2020/pygobject-3.32.2
> % cd -
> % cd pygobject-3.32.2
> % cd build
> % meson -Dpython=python2 --prefix /opt/xnadalib-2020 --libdir lib  --wrap-mode=nofallback 
> /opt/src-2020/pygobject-3.32.2
> % ninja
> % ninja install
>
> So, GNAT Studio (https://github.com/AdaCore/gps - IDE for Ada language) is running on macOS Big Sur!
> Well, the mouse clic is weird: when clicking in a source code it selects many lines as shift key was 
> pressed while clicking (text selection) !?

Good that it works, and maybe a little surprising. You might have to brush up on your C skills to debug the 
mouse click weirdness--but it would probably be a better use of your time to port it to python3 and gtk3.

Regards,
John Ralls