///

## Motivación

Comencemos con un ejemplo simple:

```Python
{!../../docs_src/python_types/tutorial001.py!}
```

Llamar este programa nos muestra el siguiente <abbr title="en español: salida">output</abbr>:

```
John Doe
```

La función hace lo siguiente:

* Toma un `first_name` y un `last_name`.

Se ele exibir o binário `pip` em `env/bin/pip` então funcionou. 🎉



/// tip

Toda vez que você instalar um novo pacote com `pip` nesse ambiente, ative o ambiente novamente.

Isso garante que se você usar um programa instalado por aquele pacote, você utilizará aquele de seu ambiente local e não outro que possa estar instalado globalmente.

///

### pip

Após ativar o ambiente como descrito acima:

<div class="termy">

  /**
   * Returns the last value corresponding to the specified field parsed as an HTTP date, or null if
   * either the field is absent or cannot be parsed as a date.
   */
  @IgnoreJRERequirement // Only programs that already have Instant will use this.
  fun getInstant(name: String): Instant? {
    return getDate(name)?.toInstant()
  }

  /** Returns the number of field values. */
  @get:JvmName("size")
  val size: Int

/// tip

Chaque fois que vous installez un nouveau paquet avec `pip` sous cet environnement, activez à nouveau l'environnement.

Cela permet de s'assurer que si vous utilisez un programme terminal installé par ce paquet (comme `flit`), vous utilisez celui de votre environnement local et pas un autre qui pourrait être installé globalement.

///

### Flit

#### Um ataque "profissional"

Claro, os invasores não tentariam tudo isso de forma manual, eles escreveriam um programa para fazer isso, possivelmente com milhares ou milhões de testes por segundo. E obteriam apenas uma letra a mais por vez.

 *
 * <p><b>Warning:</b> The caller is responsible for not attempting to read past the end of the
 * array. If any method encounters the end of the array prematurely, it throws {@link
 * IllegalStateException} to signify <i>programmer error</i>. This behavior is a technical violation
 * of the supertype's contract, which specifies a checked exception.
 *
 * @author Kevin Bourrillion
 * @since 1.0
 */
@J2ktIncompatible
@GwtIncompatible

/**
 * This class provides a skeletal implementation of the {@code Cache} interface to minimize the
 * effort required to implement this interface.
 *
 * <p>To implement a cache, the programmer needs only to extend this class and provide an
 * implementation for the {@link #get(Object)} and {@link #getIfPresent} methods. {@link
 * #getUnchecked}, {@link #get(Object, Callable)}, and {@link #getAll} are implemented in terms of

### Verlängerung des Zertifikats

Irgendwann in der Zukunft würde jedes Zertifikat **ablaufen** (etwa 3 Monate nach dem Erwerb).

Und dann gäbe es ein anderes Programm (in manchen Fällen ist es ein anderes Programm, in manchen Fällen ist es derselbe TLS-Terminierungsproxy), das mit Let's Encrypt kommuniziert und das/die Zertifikat(e) erneuert.

<img src="/img/deployment/https/https.svg">

   * equal to any other equality groups added to this tester.
   *
   * <p>The {@code @Nullable} annotations on the {@code equalityGroup} parameter imply that the
   * objects, and the array itself, can be null. That is for programmer convenience, when the
   * objects come from factory methods that are themselves {@code @Nullable}. In reality neither the
   * array nor its contents can be null, but it is not useful to force the use of {@code

    * Si vous connaissez le typage en python vous savez comment utiliser Pydantic.
* Aide votre **<abbr title="Integrated Development Environment, il s'agit de votre éditeur de code">IDE</abbr>/<abbr title="Programme qui analyse le code à la recherche d'erreurs">linter</abbr>/cerveau**: