You probably need to install python-qt4-sql package.
Thanks dude, that was the issue
Edit: Now i'm all set-up but after closing the app and trying to open again it gives this in the console:
Traceback (most recent call last):
File "/usr/local/bin/tulpenmanie", line 8, in
manager = tulpenmanie.manager.Manager(sys.argv)
File "/usr/local/lib/python2.6/dist-packages/tulpenmanie/manager.py", line 56, in __init__
self.window = MainWindow()
File "/usr/local/lib/python2.6/dist-packages/tulpenmanie/ui/mainwindow.py", line 50, in __init__
self.parse_models()
File "/usr/local/lib/python2.6/dist-packages/tulpenmanie/ui/mainwindow.py", line 110, in parse_models
dock)
File "/usr/local/lib/python2.6/dist-packages/tulpenmanie/ui/exchange.py", line 146, in __init__
widget = tulpenmanie.ui.widget.CommodityLcdWidget(self.counter_row)
File "/usr/local/lib/python2.6/dist-packages/tulpenmanie/ui/widget.py", line 52, in __init__
self.precision = int(model.item(commodity_row, model.PRECISION).text())
ValueError: invalid literal for int() with base 10: ''