[pacman-dev] pyalpm/pycman -- how to check if a package is installed?

[Kwpolska]

Hi,
I'd like to use pyalpm and pycman in my project.  I need to get the
database.  Unfortunately, when I run the code, I get an exception
saying "data is not initialized".  How to fix that?

Code (a segment) (imported: pyalpm pacman AUR argparse):
            db = pyalpm.get_localdb()
            pargs = db.get_pkg(dep)
            oargs = argparse.Namespace(package=False, quiet=False,
                                       info=0, listfiles=0)
            localInstalled = pycman.action_query.display_pkg(pargs, oargs)
            pyalpm.release()

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