Hi qgis-devs, I recently updated 15 QGIS-plugins to be QGIS3-ready. Most of them were self written (in house) plugins but four of them were also plugins from the official repository which were written by someone else.
I noticed that there are severals tasks that have many plugins in common like: - load a vectorlayer - add a layer to the layertree - iterate through all (visible?) layers of the layertree - show a message with different levels (info, warning, critical) - log messages - reading setting, writing settings - ... It seems a bit ineffective that every developer writes these common task 'from scratch'. There already were some ideas to collect common functions that could be re-used by plugin-developers: -some older functions (GIS2) like https://github.com/NathanW2/parfait https://github.com/qgis/pyqgis_wrappers and something newer like https://github.com/boundlessgeo/lib-qgis-commons https://pypi.org/project/qgiscommons/ One nice example for utilities collected for a (huge) plugin is: https://github.com/inasafe/inasafe/tree/master/safe/utilities Wouldn't it be possible to provide such a collection not only from privat persons/projects but from the QGIS-project itself so users could add common functions? I think the chances would be higher that such a "official" collection would be used in the long run and constantly extended. Apart from the fact that developers could save time while writing their plugins this could perhaps also help to improve the overall quality of the qgis-plugins as there would probably be several persons who could/would countercheck these common functions to make sure they are well written. regards, Thomas PS: I asked something similar also on gis.stackexchange recently: https://gis.stackexchange.com/questions/311755/looking-for-common-pyqgis-functions-for-qgis-3
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