[QGIS-Developer] QGIS disables plugin on loading problem

[Alister Hood]

I know the thread's a few days old now, but maybe it's worth mentioning
that I see the opposite problem - i.e. plugins loading when they are
supposed to be disabled.

For example, I think it is QAD that loads (toolbars and all), even if it is
disabled in the plugin manager.

There are other plugins that do the same thing, and it is particularly
annoying if they are and producing errors for whatever reason.  QGIS
continues to try to load them at every startup - it doesn't seem possible
to disable them, only to uninstall them.

At least some plugins (crayfish I think was the one where I noticed it)
produce errors if they are installed but not supported by your QGIS
version, even though they don't claim to be supported.  i.e. crayfish (I
think) claims to require QGIS 3.13, but if you have it installed and you
start QGIS 3.12 for some reason that still tries to load crayfish, and
produces an error.  Surely QGIS should ignore the plugin if it doesn't
claim to be compatible it, or at most show a notification about it,
instead  of erroring

These behaviours make me think there is something wrong with the way QGIS
loads plugins, but may they are normal.  Do they indicate problems with the
plugin, not with QGIS?

Regards,
Alister

Date: Thu, 3 Dec 2020 08:21:20 +0100
> From: Luca Manganelli <luca.manganelli at comune.trento.it>
> To: QGIS Developer List <qgis-developer at lists.osgeo.org>
> Subject: [QGIS-Developer] QGIS disables plugin on loading problem
> Message-ID:
>         <
> CAGKduJ1jjEkGCqhRd13UY-HBPF9jnM8GyFERVrcUzH5euSzw3A at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hello,
>
> by default behavoiur, QGIS disables plugin when there's a loading problem
> with it.
>
> In a corporate environment, we have custom plugins that are loaded for a
> shared local network folder. If the network is down and one user loads
> QGIS, it disables the plugin loaded from the local network now and in the
> future.
>
> Is there any way to disable this behaviour? (QGIS 2 doesn't do it).
>
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