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```Python
if "johndoe" == "stanleyjobson" and "love123" == "swordfish":
    ...
```

Mais au moment où Python compare le premier `j` de `johndoe` au premier `s` de `stanleyjobson`, il retournera `False`, car il sait déjà que ces deux chaînes ne sont pas identiques, en se disant qu'« il n'est pas nécessaire de gaspiller plus de calcul pour comparer le reste des lettres ». Et votre application dira « Nom d'utilisateur ou mot de passe incorrect ».

</a>
<a href="https://coverage-badge.samuelcolvin.workers.dev/redirect/fastapi/fastapi">
    <img src="https://coverage-badge.samuelcolvin.workers.dev/fastapi/fastapi.svg" alt="Coverage">
</a>
<a href="https://pypi.org/project/fastapi">
    <img src="https://img.shields.io/pypi/v/fastapi?color=%2334D058&label=pypi%20package" alt="Package version">
</a>

Versuchen Sie nun, einen ungültigen Artikel zu senden:

```JSON
{
  "title": "towel",
  "size": "XL"
}
```

Sie erhalten eine Response, die Ihnen sagt, dass die Daten ungültig sind und die den empfangenen Body enthält:

```JSON hl_lines="12-15"
{
  "detail": [
    {
      "loc": [
        "body",
        "size"
      ],

labels.roles=Peran
labels.suggestSearchLog=Log Pencarian Saran
labels.suggestWord=Kata Saran
labels.targetLabel=Label
labels.term=Istilah
labels.fields=Field
labels.ex_q=Kueri Diperluas
labels.oldPassword=Kata Sandi Saat Ini
labels.newPassword=Kata Sandi Baru
labels.confirmNewPassword=Kata Sandi Baru (Konfirmasi)

labels.menu_system=Sistem
labels.menu_wizard=Panduan
labels.menu_crawl_config=Umum

Da die Ausführungszeit hier hauptsächlich durch das Warten auf <abbr title="Input and Output - Eingabe und Ausgabe">I/O</abbr>-Operationen verbraucht wird, nennt man dies auch „I/O-lastige“ („I/O bound“) Operationen.

## Multiples paramètres de chemin et de requête { #multiple-path-and-query-parameters }

Vous pouvez déclarer plusieurs paramètres de chemin et paramètres de requête en même temps, **FastAPI** sait lequel est lequel.

Et vous n'avez pas besoin de les déclarer dans un ordre spécifique.

Ils seront détectés par leur nom :

{* ../../docs_src/query_params/tutorial004_py310.py hl[6,8] *}

  are not Modified Works.

"Contributor" means any person or entity that Distributes the Program.

"Licensed Patents" mean patent claims licensable by a Contributor which
are necessarily infringed by the use or sale of its Contribution alone
or when combined with the Program.

"Program" means the Contributions Distributed in accordance with this
Agreement.

"Recipient" means anyone who receives the Program under this Agreement

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