[Qgis-developer] implementing a custom QGIS data provider

[Martin Dobias]

>> Option 2: Write an SA12 data provider plugin for QGIS in Python
>>   Pros: distribution/management is taken care of by the Python plugin
>>   manager
>>   Cons/Questions:
>>     a. Is this even possible?  Looking through the repositories, I can't
>> find an example of a data provider written in python, or at least not one
>> that that allows definition of a DBMS-backed layer with full read/write
>> access.
>
> The bindings to QgsVectorDataProvider are there.  So it should be possible, but
> I never tried.

To clarify: currently there is no support for loading data providers
written in Python, only C++ providers are supported. Using Python for
data provider that should access lots of features will likely bring
quite some overhead, so I would strongly recommend C++ anyway.

Regards
Martin