From ionic@ionic.de Thu Feb 4 17:49:33 2016 Received: (at 989) by bugs.x2go.org; 4 Feb 2016 16:49:35 +0000 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on ymir.das-netzwerkteam.de X-Spam-Level: X-Spam-Status: No, score=-2.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,SPF_HELO_PASS,URIBL_BLOCKED autolearn=ham version=3.3.2 Received: from localhost (localhost [127.0.0.1]) by ymir.das-netzwerkteam.de (Postfix) with ESMTP id 74AAC5DA90 for <989@bugs.x2go.org>; Thu, 4 Feb 2016 17:49:33 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at ymir.das-netzwerkteam.de Received: from ymir.das-netzwerkteam.de ([127.0.0.1]) by localhost (ymir.das-netzwerkteam.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id OvI9U9aRhwap for <989@bugs.x2go.org>; Thu, 4 Feb 2016 17:49:33 +0100 (CET) Received: from Root24.de (powered.by.root24.eu [5.135.3.88]) by ymir.das-netzwerkteam.de (Postfix) with ESMTP id 1323C5DA86 for <989@bugs.x2go.org>; Thu, 4 Feb 2016 17:49:32 +0100 (CET) Received: from nopileos.local (home.ionic.de [217.92.117.31]) by mail.ionic.de (Postfix) with ESMTPSA id 4D40B4F00B28; Thu, 4 Feb 2016 17:49:32 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=ionic.de; s=default; t=1454604572; bh=PQM8NCu5AWKDsHIjsbNGwvrDOqXcpiJCwUBPOHMIrAs=; h=Subject:To:References:From:Date:In-Reply-To:From; b=hrPpoifyD60Y2YQ4fk1uCyqq195D+azUCYSaibK3D5yLZ8Nm3WcSgEhGVfXhWeOZ7 NEXawGXmwso4alsmzh4Fg4zhPuV+R+dujfTocmHOpQjtWBySUbeSi7axL9bJAjKKLq c0rrWvklVVzybjpqkyPPm8HJxSCxE/FEyun73hCM= Subject: Re: [X2Go-Dev] Bug#989: pyhoca-gui fails to fall back to Gtk-2.0 notifications (pynotify) To: =?UTF-8?Q?Ond=c5=99ej_Grover?= , 989@bugs.x2go.org References: From: Mihai Moldovan X-Enigmail-Draft-Status: N1110 Message-ID: <56B38113.70103@ionic.de> Date: Thu, 4 Feb 2016 17:49:23 +0100 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:38.0) Gecko/20100101 Thunderbird/38.5.1 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="HWIO8fHaICp2uIixNxXDqP4bqVfDHt94S" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --HWIO8fHaICp2uIixNxXDqP4bqVfDHt94S Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 31.01.2016 09:04 AM, Ond=C5=99ej Grover wrote: > I believe commit e44e848415eff3e4dab69e990adfc447e79143f8 which introdu= ced GTK3 > notification support broke GTK2 notification support fallback. The prob= lem was > not present in 0.5.0.4 >=20 > I believe the problem lies in this import construct in > pyhoca/wxgui/notify.py which will fail the same way even when put alone= in a file >=20 > try: > from gi.repository import Notify as _Notify > except ImportError: > import pynotify as _Notify >=20 > I think the problem is that even if the GTK3 Notify module is not avail= able, > many GTK3 libraries get loaded and then the pynotify import fails with = >=20 > ImportError: could not import gobject (could not find _PyGObject_API ob= ject) >=20 > This is the same exception I see when running pyhoca-gui. >=20 > I think some more sophisticated GTK version selection mechanism is need= ed, one > that would not start loading conflicting libraries. Thanks for the report. I think your analysis is spot-on. It looks like a lot of modules from gobject-introspection are loaded, unt= il it hits an error importing the Notify module. Then, importing pynotify fails, because the old, static python-gobject mo= dule that pynotify depends on conflicts with the new python-gi (gobject-introspection) modules. > As a workaround for now I just removed that GTK3 import on my system. But it's just that, a workaround. I've been looking around for a way to actually rollback a failing module = import and came up with zit. The only "actual" solution I currently see is removing pynotify support completely, because the gobjects interface is deprecated anyway. However,= that'll break notification support on older systems not having GI/GTK3. Not that I'd like it, of course. A working fallback would have been great= =2E Mihai --HWIO8fHaICp2uIixNxXDqP4bqVfDHt94S Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCgAGBQJWs4EcAAoJEB/WLtluJTqHmkIQAIhJSM/rGdcZo6HbJFXMu00k V8SD8iNaUig6TsgD5qxaHuRL9/J8fE/7ET3PPnBdRVGIkYxnaOp4aUwJWCkUrchX XdNJjHchCE91g/dSATsN56FsOaueq8QnWWw0UMLK7xdaSNsEZEGGuerZBR18y25R 9jHJNMsjqFSbHIKzrKygDTPZMM48eV3Y1rv+X766SmWHoepSlcXUj/4wcvLfG+xI 6OZG+L11bTE4j9eh4P66RZocXG4yuo0Ed9cwChKQIko7M+D0UAH1gZrM7Cwxsqzy tZ7zqK+zKNPkSy7461GCfLXmdSgn4vFGaIbTB0bLTklhNr3JEY1IGJFQEsQIfdaB eAEnvuKCl+KXxIKNb2GMydEMT9M/vm+bKWQ2HzIvmlxzz0W0FMUsOKde2qzjKk+f vtX2Ch3sAjwBZKszeXtN9yPuFa49qdwdH0vyktXIs4CBE6CKJtSh1+GMjhcXEvme I16peQR6JZiLaYm6hfyE03lc2vHs83XC9zNtC6uqa2EzqbW3jHjbdxAJq1aZ/wRQ Zet5oB7drzcHNsjzMB8igdh3FfTs36+puH+OFgC0ILoNfqnYQuEqbOFtM5cGPc5W zy6d19bht/qv+8R4A6N9yZkyZT/GyAl5SNVV8x9DUMq/gSuMg7n4brIf+YXGJ7Zq hMklCWIkC68hMl+kAjLv =4g2M -----END PGP SIGNATURE----- --HWIO8fHaICp2uIixNxXDqP4bqVfDHt94S--