```Python hl_lines="3"
import os

name = os.getenv("MY_NAME", "World")
print(f"Hello {name} from Python")
```

/// tip | Tipp

Das zweite Argument von <a href="https://docs.python.org/3.8/library/os.html#os.getenv" class="external-link" target="_blank">`os.getenv()`</a> ist der Defaultwert, der zurückgegeben wird.

  }

  /**
   * Atomically sets the element at position {@code i} to the given updated value if the current
   * value is <a href="#bitEquals">bitwise equal</a> to the expected value.
   *
   * <p>May <a
   * href="http://download.oracle.com/javase/7/docs/api/java/util/concurrent/atomic/package-summary.html#Spurious">

 * limitations under the License.
 */

/**
 * Testing utilities for use in tests of {@code com.google.common.escape}.
 *
 * <p>This package is a part of the open-source <a href="https://github.com/google/guava">Guava</a>
 * library.
 */
@CheckReturnValue
package com.google.common.escape.testing;

Beachten Sie, das bedeutet: „`one_person` ist eine **Instanz** der Klasse `Person`“.

Es bedeutet nicht: „`one_person` ist die **Klasse** genannt `Person`“.

## Pydantic-Modelle { #pydantic-models }

<a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic</a> ist eine Python-Bibliothek für die Validierung von Daten.

Sie deklarieren die „Form“ der Daten als Klassen mit Attributen.

 */

package jcifs.smb1.smb1;

/**
 * The <code>SmbAuthException</code> encapsulates the variety of
 * authentication related error codes returned by an SMB server.
 * <p>
 * See <a href="../../../authhandler.html">jCIFS Exceptions and NtlmAuthenticator</a> for more information about <code>SmbAuthException</code>.
 */

public class SmbAuthException extends SmbException {

Se você for um iniciante em **FastAPI** você deve considerar pular essa seção.

///

## Casos de Uso { #use-cases }

Alguns casos de uso incluem:

* Converter requisições não-JSON para JSON (por exemplo, <a href="https://msgpack.org/index.html" class="external-link" target="_blank">`msgpack`</a>).
* Descomprimir corpos de requisição comprimidos com gzip.
* Registrar automaticamente todos os corpos de requisição.

Por debajo, en la especificación técnica ASGI, esto es parte del <a href="https://asgi.readthedocs.io/en/latest/specs/lifespan.html" class="external-link" target="_blank">Protocolo de Lifespan</a>, y define eventos llamados `startup` y `shutdown`.

/// info | Información

JWT トークンを使って遊んでみたいという方は、<a href="https://jwt.io/" class="external-link" target="_blank">https://jwt.io</a> をチェックしてください。

## `python-jose` のインストール

PythonでJWTトークンの生成と検証を行うために、`python-jose`をインストールする必要があります：

<div class="termy">

```console
$ pip install python-jose[cryptography]

---> 100%
```

</div>

</div>

## エディタの設定

プロジェクトではおそらくエディタを使用するでしょう。コード補完やインラインエラーの表示ができるように、作成した仮想環境をエディタでも使えるよう設定してください。（多くの場合、自動検出されます）

設定例:

* <a href="https://code.visualstudio.com/docs/python/environments#_select-and-activate-an-environment" class="external-link" target="_blank">VS Code</a>
* <a href="https://www.jetbrains.com/help/pycharm/creating-virtual-environment.html" class="external-link" target="_blank">PyCharm</a>

/// tip | 豆知識

     * occurs an <code>SmbException</code> will be thrown. If the credentials are
     * valid, the method will return without throwing an exception. See the
     * last <a href="../../../faq.html">FAQ</a> question.
     * <p>
     * See also the <code>jcifs.smb.client.logonShare</code> property.
     *
     * @param dc the domain controller address