[Qgis-developer] Deploying Python Plugins that require PostgreSQL drivers

Andreas Neumann a.neumann at carto.net
Fri Jan 23 04:17:01 EST 2009

I still have no good luck deploying my Plugin with the Postgresql driver

These Apple computers don't have gcc and other dev tools installed and it
would be quite an efforts to install all the necessary dev-tools on each

I was neither able to install Psycopg nor the necessary qtsql drivers.

On my own private Macbook it works fine, since I have all the Unix tools

I would very much appreciate if one of the Mac QGIS-users would have a
hint how I could deploy psycopg or the QPSQL qtsql driver.


> Hi Andreas,
> On Thu, 22. Jan 2009 at 17:24:25 +0100, Andreas Neumann wrote:
>> I wrote a Python plugin that uses the QSqlDatabase object with
>> PostgreSQL.
>> While the deployment works fine on Linux and Windows, I get an error
>> message on Mac OS X with an error message "Driver not loaded".
> Qt needs to be compiled with libpq in order to have PostgreSQL in
> QSqlDatabase.   QGIS uses libpq directly instead of requiring a
> PostgreSQL enabled Qt.
>> Anyone knows if such binary drivers for OSX exist and where I could get
>> them? How do others deploy such plugins that need PostgreSQL a
>> connection?
> They use psycopg2 (at least the PostGIS Manager plugin does).
> Jürgen
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Andreas Neumann
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