Python osgeo.gdal 模块，PushErrorHandler() 实例源码

def translate(self, params):
        if params is None:
            return
        params['callback'] = self.translate_callback

        dlg = QProgressDialog(self)
        dlg.setWindowTitle(plugin_name())
        dlg.setLabelText('Operation in progress')
        dlg.setMinimum(0)
        dlg.setMaximum(100)
        dlg.setWindowModality(Qt.WindowModal)
        self.progress_dlg = dlg

        self.setCursor(Qt.WaitCursor)
        try:
            log("gdal.VectorTranslate({})".format(str(params)))
            gdal.PushErrorHandler(gdal_error_handler)
            with qgis_proxy_settings():
                res = gdal.VectorTranslate(**params)
            gdal.PopErrorHandler()
            log(str(res))
        finally:
            self.unsetCursor()
            self.progress_dlg.reset()
            self.progress_dlg = None

def _load(self, iface, max_tiles, serial_tile_processing_limit=None, merge_tiles=False, clip_tiles=False, apply_styles=False):
        conn = copy.deepcopy(MBTILES_CONNECTION_TEMPLATE)
        gdal.PushErrorHandler('CPLQuietErrorHandler')
        conn["name"] = "Unittest_Connection"
        conn["path"] = os.path.join(os.path.dirname(__file__), '..', 'sample_data', 'uster_zh.mbtiles')
        reader = VtReader(iface=iface, connection=conn)
        bounds = {'y_min': 10644, 'y_max': 10645, 'zoom': 14, 'height': 2, 'width': 3, 'x_max': 8589, 'x_min': 8587}
        reader.set_options(merge_tiles=merge_tiles, clip_tiles=clip_tiles, max_tiles=max_tiles,
                           layer_filter=['landcover', 'place', 'water_name'], apply_styles=apply_styles)
        reader._loading_options["zoom_level"] = 14
        reader._loading_options["bounds"] = bounds
        if serial_tile_processing_limit:
            reader._nr_tiles_to_process_serial = serial_tile_processing_limit
        reader._load_tiles()
        reader.shutdown()