**FastAPI** verwendet sie intern, um das zu erreichen.

///

## Abhängigkeiten mit `yield` und `HTTPException` { #dependencies-with-yield-and-httpexception }

Sie haben gesehen, dass Sie Abhängigkeiten mit `yield` verwenden und `try`-Blöcke haben können, die versuchen, irgendeinen Code auszuführen und dann, nach `finally`, Exit-Code ausführen.

Sie können auch `except` verwenden, um die geworfene Exception abzufangen und damit etwas zu tun.

            mirrorSelector.add(
                    mirror.getId(),
                    mirror.getUrl(),
                    mirror.getLayout(),
                    false,
                    mirror.isBlocked(),
                    mirror.getMirrorOf(),
                    mirror.getMirrorOfLayouts());
        }
        sessionBuilder.setMirrorSelector(mirrorSelector);

					write([]byte(err.Error()))
				} else {
					write([]byte{0})
				}
				xioutil.SafeClose(doneCh)
				return
			case block := <-blockCh:
				var tmp [5]byte
				tmp[0] = 2
				binary.LittleEndian.PutUint32(tmp[1:], uint32(len(block)))
				write(tmp[:])
				write(block)
				if canWrite {
					xhttp.Flush(w)
				}
			}
		}
	}()
	return &h
}

    public static final int ACB_SVRTRUST = 256;
    /** Account control bit flag: Password does not expire */
    public static final int ACB_PWNOEXP = 512;
    /** Account control bit flag: Account is auto-locked */
    public static final int ACB_AUTOLOCK = 1024;
    /** Account control bit flag: Encrypted text password is allowed */
    public static final int ACB_ENC_TXT_PWD_ALLOWED = 2048;

    public static final int ACB_SVRTRUST = 256;
    /** Account control bit flag: Password does not expire */
    public static final int ACB_PWNOEXP = 512;
    /** Account control bit flag: Account is auto-locked */
    public static final int ACB_AUTOLOCK = 1024;
    /** Account control bit flag: Encrypted text password is allowed */
    public static final int ACB_ENC_TXT_PWD_ALLOWED = 2048;

		lc, err = globalLifecycleSys.Get(bi.Name)
		if err != nil && !errors.Is(err, BucketLifecycleNotFound{Bucket: bi.Name}) {
			return err
		}

		// Check if bucket is object locked.
		lr, err = globalBucketObjectLockSys.Get(bi.Name)
		if err != nil {
			return err
		}

		rcfg, err = getReplicationConfig(ctx, bi.Name)
		if err != nil {
			return err
		}
	}

		                          </Rule>
		                          </LifecycleConfiguration>`,
			expectedParsingErr:    nil,
			expectedValidationErr: nil,
		},
		{ // Using ExpiredObjectAllVersions element with an object locked bucket
			inputConfig: `<LifecycleConfiguration>
                                        <Rule>
                                          <ID>ExpiredObjectAllVersions with object locking</ID>
		                          <Filter>

			if serverDebugLog {
				if obj.VersionID != "" {
					console.Debugf(applyActionsLogPrefix+" lifecycle: %s v(%s) is locked, not deleting\n", obj.Name, obj.VersionID)
				} else {
					console.Debugf(applyActionsLogPrefix+" lifecycle: %s is locked, not deleting\n", obj.Name)
				}
			}
			return lifecycle.Event{Action: lifecycle.NoneAction}
		}

             */
            if (this.state != 5 && this.state != 6) {
                doConnect();
            }
        } catch (final Exception ex) {
            ex0 = ex; // Defer to below where we're locked
            return;
        } finally {
            synchronized (run_thread) {
                if (run_thread != this.thread) {
                    /*

    Previously OkHttp used its connection pool as a lock when making changes to connections and
    calls. With this change each connection is locked independently.

 *  Upgrade: [Okio 2.7.0][okio_2_7_0].

    ```kotlin
    implementation("com.squareup.okio:okio:2.7.0")
    ```