<div class="termy">

```console
$ which pip

some/directory/fastapi/env/bin/pip
```

</div>

////

//// tab | Windows PowerShell

<div class="termy">

```console
$ Get-Command pip

some/directory/fastapi/env/bin/pip
```

</div>

////

Wenn die `pip` Binärdatei unter `env/bin/pip` angezeigt wird, hat es funktioniert. 🎉

# 기능

## FastAPI의 기능

**FastAPI**는 다음과 같은 기능을 제공합니다:

### 개방형 표준을 기반으로

* <abbr title="엔드포인트, 라우트로도 알려져 있습니다">경로</abbr><abbr title="POST, GET, PUT, DELETE와 같은 HTTP 메소드로 알려져 있습니다">작동</abbr>, 매개변수, 본문 요청, 보안 그 외의 선언을 포함한 API 생성을 위한 <a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank"><strong>OpenAPI</strong></a>

					if !ok {
						break drain
					}

					currentGlobalBuffer <- v
				default:
					break drain
				}
			}
		}
	}()

	lastBatchProcess := time.Now()

	buf := bytebufferpool.Get()
	enc := jsoniter.ConfigCompatibleWithStandardLibrary.NewEncoder(buf)
	defer bytebufferpool.Put(buf)

	isDirQueue := h.config.QueueDir != ""

	// globalBuffer is always created or adjusted

   */
  private const val SETTINGS_HEADER_TABLE_SIZE_LIMIT = 16_384

  val STATIC_HEADER_TABLE =
    arrayOf(
      Header(TARGET_AUTHORITY, ""),
      Header(TARGET_METHOD, "GET"),
      Header(TARGET_METHOD, "POST"),
      Header(TARGET_PATH, "/"),
      Header(TARGET_PATH, "/index.html"),
      Header(TARGET_SCHEME, "http"),
      Header(TARGET_SCHEME, "https"),

    int hashTableBits = Integer.SIZE - Integer.numberOfLeadingZeros(mask);
    metadata =
        CompactHashing.maskCombine(metadata, hashTableBits, CompactHashing.HASH_TABLE_BITS_MASK);
  }

  /** Gets the hash table mask using the stored number of hash table bits. */
  private int hashTableMask() {
    return (1 << (metadata & CompactHashing.HASH_TABLE_BITS_MASK)) - 1;
  }

  void incrementModCount() {

    }

    private void flushAttributes() {
        if (attributeOptions.isEmpty()) {
            return;
        }
        if (attributeOptions.size() == 1 && attributeOptions.get(0) == 0) {
            builder.append(FIRST_ESC_CHAR);
            builder.append(SECOND_ESC_CHAR);
            builder.append('m');
        } else {
            doAppendEscapeSequence('m', attributeOptions.toArray());

      "identity": "spiffe://cluster.local/ns/istio-system/sa/istiod",
      "state": "Unavailable: signing gRPC error (The service is currently unavailable): error trying to connect: TLS handshake failed: cert verification failed - unable to get local issuer certificate [CERTIFICATE_VERIFY_FAILED]",
      "certChain": []
    }
  ]

    // Make sure it returned a copy
    list.set(0, (double) 4);
    assertThat(newArray).isEqualTo(new double[] {(double) 0, (double) 1, (double) 2});
    newArray[1] = (double) 5;
    assertThat((double) list.get(1)).isEqualTo((double) 1);
  }

  // This test stems from a real bug found by andrewk
  public void testAsList_subList_toArray_roundTrip() {
    double[] array = {(double) 0, (double) 1, (double) 2, (double) 3};

     * confirm that my change to MapIteratorCache fixes the TSAN error in the (larger) test it was
     * originally reported in.
     */
    for (Future<?> future : futures.build()) {
      future.get();
    }
    executor.shutdown();
  }

```

////

/// info

FastAPI added support for `Annotated` (and started recommending it) in version 0.95.0.

If you have an older version, you would get errors when trying to use `Annotated`.

Make sure you [Upgrade the FastAPI version](../deployment/versions.md#upgrading-the-fastapi-versions){.internal-link target=_blank} to at least 0.95.1 before using `Annotated`.

///