# デバッグ

Visual Studio CodeやPyCharmなどを使用して、エディター上でデバッガーと連携できます。

## `uvicorn` の実行

FastAPIアプリケーション上で、`uvicorn` を直接インポートして実行します:

```Python hl_lines="1  15"
{!../../docs_src/debugging/tutorial001.py!}
```

### `__name__ == "__main__"` について

`__name__ == "__main__"` の主な目的は、ファイルが次のコマンドで呼び出されたときに実行されるコードを用意することです:

<div class="termy">

```console
$ python myapp.py
```

</div>

Now, there are some cases where you might want to have the **same schema for input and output**.

Probably the main use case for this is if you already have some autogenerated client code/SDKs and you don't want to update all the autogenerated client code/SDKs yet, you probably will want to do it at some point, but maybe not right now.

In that case, you can disable this feature in **FastAPI**, with the parameter `separate_input_output_schemas=False`.

    }

  fun setResponseCode(code: Int): MockResponse {
    val reason =
      when (code) {
        in 100..199 -> "Informational"
        in 200..299 -> "OK"
        in 300..399 -> "Redirection"
        in 400..499 -> "Client Error"
        in 500..599 -> "Server Error"
        else -> "Mock Response"
      }
    return apply { status = "HTTP/1.1 $code $reason" }
  }

  fun clearHeaders() =

/**
 * An iterator that supports a one-element lookahead while iterating.
 *
 * <p>See the Guava User Guide article on <a href=
 * "https://github.com/google/guava/wiki/CollectionHelpersExplained#peekingiterator">{@code
 * PeekingIterator}</a>.
 *
 * @author Mick Killianey
 * @since 2.0
 */
@DoNotMock("Use Iterators.peekingIterator")
@GwtCompatible
@ElementTypesAreNonnullByDefault

interface ModelCacheTag<T> {

    /**
     * Gets the name of the tag.
     *
     * @return The name of the tag, must not be {@code null}.
     */
    String getName();

    /**
     * Gets the type of data associated with this tag.
     *
     * @return The type of data, must not be {@code null}.
     */
    Class<T> getType();

    /**
     * The tag used for the raw model without profile activation
     */

    private final List<SettingsProblem> problems;

    /**
     * Creates a new exception with the specified problems.
     *
     * @param problems The problems that cause this exception, may be {@code null}.
     */
    public SettingsBuildingException(List<SettingsProblem> problems) {
        super(toMessage(problems));

        this.problems = new ArrayList<>();
        if (problems != null) {

You can also declare the `Response` parameter in dependencies, and set cookies (and headers) in them.

## Return a `Response` directly

You can also create cookies when returning a `Response` directly in your code.

    }

    @Override
    public Artifact createArtifact(String groupId, String artifactId, String version, String scope, String type) {
        return new DefaultArtifact(groupId, artifactId, version, scope, type, null, new TestArtifactHandler(type));
    }

    @Override
    public ArtifactRepository createArtifactRepository(
            String id,
            String url,

        if ( this.getErrorCode() != 0 )
            return 4;

        try {
            this.securityDescriptor = new SecurityDescriptor();
            bufferIndex += this.securityDescriptor.decode(buffer, bufferIndex, len);
        }
        catch ( IOException ioe ) {
            throw new RuntimeCIFSException(ioe.getMessage());
        }

        return bufferIndex - start;
    }

* A particular program while it is **running** on the operating system.
    * This doesn't refer to the file, nor to the code, it refers **specifically** to the thing that is being **executed** and managed by the operating system.
* Any program, any code, **can only do things** when it is being **executed**. So, when there's a **process running**.