<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def zoom_bbox(self, bbox):
 """Zoom map to geometry extent. Arguments: bbox -- OGRGeometry polygon to zoom map extent """

        try:
            bbox.transform(self.map.srs)
        except gdal.GDALException:
            pass
        else:
            self.map.zoom_to_box(mapnik.Box2d(*bbox.extent))