/// tip

By adding the `standard`, Uvicorn will install and use some recommended extra dependencies.

That including `uvloop`, the high-performance drop-in replacement for `asyncio`, that provides the big concurrency performance boost.

When you install FastAPI with something like `pip install "fastapi[standard]"` you already get `uvicorn[standard]` as well.

///

## Run the Server Program

# Concurrency ve async / await

*path operasyon fonksiyonu* için `async def `sözdizimi,  asenkron kod, eşzamanlılık ve paralellik hakkında bazı ayrıntılar.

## Aceleniz mi var?

<abbr title="too long; didn't read"><strong>TL;DR:</strong></abbr>

Eğer `await` ile çağrılması gerektiğini belirten üçüncü taraf kütüphaneleri kullanıyorsanız, örneğin:

```Python
results = await some_library()
```

* Fix typos in Async docs. PR [#1423](https://github.com/tiangolo/fastapi/pull/1423).

## 0.54.2

* Add translation to Spanish for [Concurrency and async / await - Concurrencia y async / await](https://fastapi.tiangolo.com/es/async/). PR [#1290](https://github.com/tiangolo/fastapi/pull/1290) by [@alvaropernas](https://github.com/alvaropernas).

    is_uploadfile_sequence_annotation,
    lenient_issubclass,
    sequence_types,
    serialize_sequence_value,
    value_is_sequence,
)
from fastapi.background import BackgroundTasks
from fastapi.concurrency import (
    asynccontextmanager,
    contextmanager_in_threadpool,
)
from fastapi.dependencies.models import Dependant, SecurityRequirement
from fastapi.logger import logger

```Python hl_lines="7"
{!../../docs_src/first_steps/tutorial003.py!}
```

/// note

Si vous ne connaissez pas la différence, allez voir la section [Concurrence : *"Vous êtes pressés ?"*](../async.md#vous-etes-presses){.internal-link target=_blank}.

///

### Étape 5 : retourner le contenu

```Python hl_lines="8"
{!../../docs_src/first_steps/tutorial001.py!}
```

    assertThat(map.entryHelper)
        .isInstanceOf(MapMakerInternalMap.StrongKeyStrongValueEntry.Helper.class);

    assertEquals(4, map.concurrencyLevel);

    // concurrency level
    assertThat(map.segments).hasLength(4);
    // initial capacity / concurrency level
    assertEquals(16 / map.segments.length, map.segments[0].table.length());
  }

  public void testSetKeyEquivalence() {
    Equivalence<Object> testEquivalence =

    assertThat(map.entryHelper)
        .isInstanceOf(MapMakerInternalMap.StrongKeyStrongValueEntry.Helper.class);

    assertEquals(4, map.concurrencyLevel);

    // concurrency level
    assertThat(map.segments).hasLength(4);
    // initial capacity / concurrency level
    assertEquals(16 / map.segments.length, map.segments[0].table.length());
  }

  public void testSetKeyEquivalence() {
    Equivalence<Object> testEquivalence =

        performProjectActivation(context, request.getProjectActivation());
        performProfileActivation(context, request.getProfileActivation());

        //
        // Builder, concurrency and parallelism
        //
        // We preserve the existing methods for builder selection which is to look for various inputs in the threading

     *
     * @return the maven version, never {@code null}
     */
    @Nonnull
    Version getMavenVersion();

    /**
     * Returns the degree of concurrency for the build.
     *
     * @return  the degree of concurrency
     */
    int getDegreeOfConcurrency();

    /**
     * Returns the start time of the session.
     *

  /** items index for next take, poll or remove */
  int takeIndex;
  /** items index for next put, offer, or add. */
  int putIndex;
  /** Number of items in the queue */
  private int count;

  /*
   * Concurrency control uses the classic two-condition algorithm
   * found in any textbook.
   */

  /** Monitor guarding all access */
  final Monitor monitor;

  /** Guard for waiting takes */