spct_downloader.py 文件源码

def getDLsize(self):
        debug_log("getDLsize called")
        it = QTreeWidgetItemIterator(self.tw)
        while it.value():
            item = it.value()
            url_test = item.data(0, dataURL)
            if url_test is not None:
                try:
                    r = requests.head(url_test)
                    r.raise_for_status()
                    try:
                        size = (int(r.headers['Content-Length']) / 1024) / 1024
                    except ValueError:
                        size = 0
                    if size > 0:
                        item.setText(2, "{} MiB".format(round(size, 2)))
                except requests.exceptions.HTTPError:
                    debug_log("Error {} getting DL size: {}".format(r.status_code, r.headers))
                    item.setText(2, r.status_code)
                except requests.exceptions.RequestException as e:
                    item.setText(2, self.tr("Error"))
                    debug_log(e, logging.ERROR)
            it += 1