Don't crash on invalid zipfiles, even if we encounter 'badness' halfway...

            ) as target:

                shutil.copyfileobj(source, target)

            return targetpath.decode(sys.getfilesystemencoding())

        except zipfile.BadZipFile as e:

            raise ContainerExtractionError(member_name, e)

        except RuntimeError as e:

            # Handle encrypted files see line 1292 of zipfile.py

            is_encrypted = self.archive.getinfo(member_name).flag_bits & 0x1