## 安装服务器程序

当您安装 FastAPI 时，它自带一个生产环境服务器——Uvicorn，并且您可以使用 `fastapi run` 命令来启动它。

不过，您也可以手动安装 ASGI 服务器。

请确保您创建并激活一个[虚拟环境](../virtual-environments.md){.internal-link target=_blank}，然后再安装服务器应用程序。

例如，要安装 Uvicorn，可以运行以下命令：

<div class="termy">

```console
$ pip install "uvicorn[standard]"

---> 100%
```

</div>

    * waiting for the request to be satisfied. It will continually refresh the certificate

  * Create clusters with GPUs in GCE by specifying `type=<gpu-type>,count=<gpu-count>` to NODE_ACCELERATORS environment variable. ([#45130](https://github.com/kubernetes/kubernetes/pull/45130), [@vishh](https://github.com/vishh))

Entretanto, se você usar o comando `pip install fastapi`, o pacote `python-multipart` não é incluído por padrão.

Para instalá-lo manualmente, certifique-se de criar um [ambiente virtual](../../virtual-environments.md){.internal-link target=_blank}, ativá-lo e então instalá-lo com:

```console
$ pip install python-multipart
```

Isso ocorre porque o **OAuth2** usa "form data" para enviar o `username` e o `password`.

///

Sin embargo, si usas el comando `pip install fastapi`, el paquete `python-multipart` no se incluye por defecto.

Para instalarlo manualmente, asegúrate de crear un [entorno virtual](../../virtual-environments.md){.internal-link target=_blank}, activarlo, y luego instalarlo con:

```console
$ pip install python-multipart
```

Esto se debe a que **OAuth2** utiliza "form data" para enviar el `username` y `password`.

Wenn Sie jedoch den Befehl `pip install fastapi` verwenden, ist das Paket `python-multipart` nicht standardmäßig enthalten.

Um es manuell zu installieren, stellen Sie sicher, dass Sie eine [Virtuelle Umgebung](../../virtual-environments.md){.internal-link target=_blank} erstellen, sie aktivieren und es dann mit:

```console
$ pip install python-multipart
```

installieren.

 *
 * This class provides Single Sign-On (SSO) authentication using the SPNEGO protocol,
 * which is commonly used for Kerberos-based authentication in Windows environments.
 * It handles the negotiation between client and server to establish a secure
 * authentication context without requiring users to explicitly enter credentials.
 *

            method.setAccessible(true);
          } catch (AccessControlException e) {
            // OK: the method is accessible to us anyway. The setAccessible call is only for
            // unusual execution environments where that might not be true.
          }
          builder.put(method.getName(), method);
        }
      }
      typeVariableMethods = builder.buildKeepingLast();
    }

Para usar `EmailStr`, primeiro instale <a href="https://github.com/JoshData/python-email-validator" class="external-link" target="_blank">`email-validator`</a>.

Certifique-se de criar um [ambiente virtual](../virtual-environments.md){.internal-link target=_blank}, ative-o e instale-o, por exemplo:

```console
$ pip install email-validator
```

ou com:

```console
$ pip install "pydantic[email]"
```

///

## Instalar o `SQLModel` { #install-sqlmodel }

Primeiro, certifique-se de criar seu [ambiente virtual](../virtual-environments.md){.internal-link target=_blank}, ativá-lo e, em seguida, instalar o `sqlmodel`:

<div class="termy">

```console
$ pip install sqlmodel
---> 100%
```

</div>

   * implemented in terms of that method (though they will likely be overridden by subclasses for
   * performance reasons).) This means that a call to this method have can different behavior in GWT
   * and non-GWT environments UNLESS subclasses are careful to always override all methods
   * implemented in terms of sortedDelegate (except comparator()).
   */
  ImmutableSortedSet(Comparator<? super E> comparator) {