# Unterabhängigkeiten

Sie können Abhängigkeiten erstellen, die **Unterabhängigkeiten** haben.

Diese können so **tief** verschachtelt sein, wie nötig.

**FastAPI** kümmert sich darum, sie aufzulösen.

## Erste Abhängigkeit, „Dependable“

Sie könnten eine erste Abhängigkeit („Dependable“) wie folgt erstellen:

=== "Python 3.10+"

    ```Python hl_lines="8-9"
    {!> ../../../docs_src/dependencies/tutorial005_an_py310.py!}
    ```

    private List<URL> implementationClassPath;
    private List<URL> implementationModulePath;
    private boolean shouldPublishJvmMemoryInfo;
    private NativeServicesMode nativeServicesMode = NativeServicesMode.NOT_SET;

    DefaultWorkerProcessBuilder(
        JavaExecHandleFactory execHandleFactory,
        MessagingServer server,
        IdGenerator<Long> idGenerator,

		$2 !~ "NLA_TYPE_MASK" &&
		$2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P)_/ ||
		$2 ~ /^SIOC/ ||
		$2 ~ /^TIOC/ ||
		$2 !~ "RTF_BITS" &&
		$2 ~ /^(IFF|IFT|NET_RT|RTM|RTF|RTV|RTA|RTAX)_/ ||
		$2 ~ /^BIOC/ ||
		$2 ~ /^RUSAGE_(SELF|CHILDREN|THREAD)/ ||
		$2 ~ /^RLIMIT_(AS|CORE|CPU|DATA|FSIZE|NOFILE|STACK)|RLIM_INFINITY/ ||
		$2 ~ /^PRIO_(PROCESS|PGRP|USER)/ ||

        // When not explicitly set, use the value from system properties
        NativeServicesMode nativeServicesMode = config.getNativeServicesMode() == NativeServicesMode.NOT_SET
            ? NativeServicesMode.fromSystemProperties()
            : config.getNativeServicesMode();

        // Configure services
        File gradleUserHomeDir = new File(config.getGradleUserHomeDirPath());

func isDirMounted(plug *csiPlugin, dir string) (bool, error) {
	mounter := plug.host.GetMounter(plug.GetPluginName())
	notMnt, err := mounter.IsLikelyNotMountPoint(dir)
	if err != nil && !os.IsNotExist(err) {
		klog.Error(log("isDirMounted IsLikelyNotMountPoint test failed for dir [%v]", dir))
		return false, err
	}
	return !notMnt, nil
}

func isCorruptedDir(dir string) bool {
	_, pathErr := mount.PathExists(dir)

	return ed.SetUpAt(ed.GetPath(), mounterArgs)
}

// SetUpAt creates new directory.
func (ed *emptyDir) SetUpAt(dir string, mounterArgs volume.MounterArgs) error {
	notMnt, err := ed.mounter.IsLikelyNotMountPoint(dir)
	// Getting an os.IsNotExist err from is a contingency; the directory
	// may not exist yet, in which case, setup should run.
	if err != nil && !os.IsNotExist(err) {
		return err

	MVN_S_LT
	MVN_S_GT
	MVN_S_LE
	MVN_S
	MVN_S_ZZ
	NOP_EQ
	NOP_NE
	NOP_CS
	NOP_CC
	NOP_MI
	NOP_PL
	NOP_VS
	NOP_VC
	NOP_HI
	NOP_LS
	NOP_GE
	NOP_LT
	NOP_GT
	NOP_LE
	NOP
	NOP_ZZ
	ORR_EQ
	ORR_NE
	ORR_CS
	ORR_CC
	ORR_MI
	ORR_PL
	ORR_VS
	ORR_VC
	ORR_HI
	ORR_LS
	ORR_GE
	ORR_LT
	ORR_GT

    assertFailsWith<IllegalArgumentException> {
      builder.header("Name", s)
    }
    assertFailsWith<IllegalArgumentException> {
      builder.addHeader("Name", s)
    }
  }

  @Test
  fun noTag() {
    val request =
      Request.Builder()
        .url("https://square.com")
        .build()
    assertThat(request.tag<Any>()).isNull()
    assertThat(request.tag(Any::class)).isNull()

		$2 !~ "NLA_TYPE_MASK" &&
		$2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P)_/ ||
		$2 ~ /^SIOC/ ||
		$2 ~ /^TIOC/ ||
		$2 !~ "RTF_BITS" &&
		$2 ~ /^(IFF|IFT|NET_RT|RTM|RTF|RTV|RTA|RTAX)_/ ||
		$2 ~ /^BIOC/ ||
		$2 ~ /^RUSAGE_(SELF|CHILDREN|THREAD)/ ||
		$2 ~ /^RLIMIT_(AS|CORE|CPU|DATA|FSIZE|NOFILE|STACK)|RLIM_INFINITY/ ||
		$2 ~ /^PRIO_(PROCESS|PGRP|USER)/ ||

    assertFailsWith<IllegalArgumentException> {
      builder.header("Name", s)
    }
    assertFailsWith<IllegalArgumentException> {
      builder.addHeader("Name", s)
    }
  }

  @Test
  fun noTag() {
    val request =
      Request.Builder()
        .url("https://square.com")
        .build()
    assertThat(request.tag()).isNull()
    assertThat(request.tag(Any::class.java)).isNull()