a Contributor if it was added to the Program by such Contributor itself or
anyone acting on such Contributor's behalf. Contributions do not include additions
to the Program which: (i) are separate modules of software distributed in
conjunction with the Program under their own license agreement, and (ii) are
not derivative works of the Program.

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

          <name>aggregator</name>
          <version>1.0.0+</version>
          <type>boolean</type>
          <description>
            Flags this Mojo to run it in a multi-module way, i.e. aggregate the build with the set of projects
            listed as modules.
          </description>
          <defaultValue>false</defaultValue>
        </field>
        <field>
          <name>inheritedByDefault</name>

Вторая версия является примером абсолютного импорта:

```Python
from app.routers import items, users
```

Узнать больше о пакетах и модулях в Python вы можете из <a href="https://docs.python.org/3/tutorial/modules.html" class="external-link" target="_blank">официальной документации Python о модулях</a>

///

### Избегайте конфликтов имен

#### `RequestValidationError` 🆚 `ValidationError`

/// warning

👫 📡 ℹ 👈 👆 💪 🚶 🚥 ⚫️ 🚫 ⚠ 👆 🔜.

///

`RequestValidationError` 🎧-🎓 Pydantic <a href="https://docs.pydantic.dev/latest/concepts/models/#error-handling" class="external-link" target="_blank">`ValidationError`</a>.

**FastAPI** ⚙️ ⚫️ 👈, 🚥 👆 ⚙️ Pydantic 🏷 `response_model`, &amp; 👆 💽 ✔️ ❌, 👆 🔜 👀 ❌ 👆 🕹.

/// warning | Увага

Це технічні деталі, які Ви можете пропустити, якщо вони зараз не важливі для Вас.

///

`RequestValidationError` є підкласом Pydantic <a href="https://docs.pydantic.dev/latest/concepts/models/#error-handling" class="external-link" target="_blank">`ValidationError`</a>.

asegurará de que sea serializable como JSON, usando el mismo [Codificador Compatible con JSON](../tutorial/encoder.md){.internal-link target=_blank} explicado en el tutorial. Esto es lo que te permite devolver **objetos arbitrarios**, por ejemplo, modelos de bases de datos.

Pero si estás seguro de que el contenido que estás devolviendo es **serializable con JSON**, puedes pasarlo directamente a la clase de response y evitar la sobrecarga extra que FastAPI tendría al pasar tu contenido de retorno...

        <field>
          <name>module</name>
          <version>4.1.0+</version>
          <description>
            <![CDATA[
            Name of the Java module (or other language-specific module) which is built by the sources.
            This element can be specified in a Maven project containing multiple Java modules.

    * Convert Python types (`str`, `int`, `float`, `bool`, `list`, etc).
    * `datetime` objects.
    * `UUID` objects.
    * Database models.
    * ...and many more.
* Automatic interactive API documentation, including 2 alternative user interfaces:
    * Swagger UI.
    * ReDoc.

---

Coming back to the previous code example, **FastAPI** will:

</div>

<details markdown="1">
<summary><code>uvicorn main:app --reload</code> əmri haqqında...</summary>

`uvicorn main:app` əmri aşağıdakılara instinad edir:

* `main`: `main.py` faylı (yəni Python "modulu").
* `app`: `main.py` faylında `app = FastAPI()` sətrində yaratdığımız `FastAPI` obyektidir.

/// warning

These are technical details that you might skip if it's not important for you now.

///

`RequestValidationError` is a sub-class of Pydantic's <a href="https://docs.pydantic.dev/latest/concepts/models/#error-handling" class="external-link" target="_blank">`ValidationError`</a>.

**FastAPI** uses it so that, if you use a Pydantic model in `response_model`, and your data has an error, you will see the error in your log.