### The main app file

Now we create a dependency that returns a new `config.Settings()`.

//// tab | Python 3.9+

```Python hl_lines="6  12-13"
{!> ../../docs_src/settings/app02_an_py39/main.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="6  12-13"
{!> ../../docs_src/settings/app02_an/main.py!}
```

////

where it had been, it suddenly appeared again.

  `By-the-bye, what became of the baby?' said the Cat.  `I'd
nearly forgotten to ask.'

  `It turned into a pig,' Alice quietly said, just as if it had
come back in a natural way.

  `I thought it would,' said the Cat, and vanished again.

  Alice waited a little, half expecting to see it again, but it

[2020-01-01 00:00:00] Q10000 starting              : OkHttp ConnectionPool
[2020-01-01 00:00:00] Q10000 run again after 300 s : OkHttp ConnectionPool
[2020-01-01 00:00:00] Q10000 finished run in 739 µs: OkHttp ConnectionPool
```

              case 1:
                return 1;
              case 2:
                return endOfData();
              default:
                throw new AssertionError("Should not have been invoked again");
            }
          }
        };

    assertTrue(iter.hasNext());
    assertEquals(0, (int) iter.next());

    // verify idempotence of hasNext()
    assertTrue(iter.hasNext());

                || candidateVersion.version.endsWith("-snapshot-1")
        }

        // Remove state for old versions of Gradle that we're unlikely to ever require again
        fileSystemOperations.removeOldVersionsFromDir(workerDir.dir("caches"), expireDistributionCache)

        // Remove scripts caches
        fileSystemOperations.removeCachedScripts(workerDir.dir("caches").asFile)

    * Each deployment method should bind users/groups to the ClusterRoles if they are using this feature.
* Adds AllowPrivilegeEscalation to control whether a process can gain more privileges than its parent process ([#47019](https://github.com/kubernetes/kubernetes/pull/47019), [@jessfraz](https://github.com/jessfraz))

c,OAAQ,WAYP,OAXAtZ,GAAOsB,KAAMG,UAAW,SAAUiX,EAAG7T,GACpC,IAAIkS,EACJ,OAA0D,GAAhDA,EAAQ/W,GAAOkE,QAASW,EAAKmU,EAAMjC,IAC5CiC,EAAK3W,OAAQ0U,EAAO,GAGfA,GAASmC,GACbA,MAIInc,MAKRqT,IAAK,SAAUjQ,GACd,OAAOA,GACwB,EAA9BH,GAAOkE,QAAS/D,EAAI6Y,GACN,EAAdA,EAAK1Y,QAIP+Q,MAAO,WAIN,OAHK2H,IACJA,EAAO,IAEDjc,MAMRwc,QAAS,WAGR,OAFAR,EAASE,EAAQ,GACjBD,EAAOH,EAAS,GACT9b,MAERuM,SAAU,WACT,OAAQ0P,GAMTQ,KAAM,WAKL,OAJAT,EAASE,EAAQ,GACXJ,GAAWD,IAChBI,EAAOH,EAAS,IAEV9b,MAERgc,OAAQ,WACP,QAASA,GAIVU,SAAU,SAAUvZ,EAAS0P,GAS5B,...

app = FastAPI()


class InternalError(Exception):
    pass


def get_username():
    try:
        yield "Rick"
    except InternalError:
        print("We don't swallow the internal error here, we raise again 😎")
        raise


@app.get("/items/{item_id}")
def get_item(item_id: str, username: Annotated[str, Depends(get_username)]):
    if item_id == "portal-gun":
        raise InternalError(

package cmd

import "strconv"

func _() {
	// An "invalid array index" compiler error signifies that the constant values have changed.
	// Re-run the stringer command to generate them again.
	var x [1]struct{}
	_ = x[rebalNone-0]
	_ = x[rebalStarted-1]
	_ = x[rebalCompleted-2]
	_ = x[rebalStopped-3]
	_ = x[rebalFailed-4]
}

const _rebalStatus_name = "NoneStartedCompletedStoppedFailed"

app = FastAPI()


class InternalError(Exception):
    pass


def get_username():
    try:
        yield "Rick"
    except InternalError:
        print("We don't swallow the internal error here, we raise again 😎")
        raise


@app.get("/items/{item_id}")
def get_item(item_id: str, username: str = Depends(get_username)):
    if item_id == "portal-gun":
        raise InternalError(