### Importa `HTTPException`

{* ../../docs_src/handling_errors/tutorial001.py hl[1] *}

### Lanza un `HTTPException` en tu código

`HTTPException` es una excepción de Python normal con datos adicionales relevantes para APIs.

Debido a que es una excepción de Python, no la `return`, sino que la `raise`.

        } catch (SmbException e) {
            // Expected
        }
    }

    @Test
    public void testValidFileExtensions() throws Exception {
        // Normal extensions should be allowed
        assertEquals("\\share\\file.txt", validator.validatePath("\\share\\file.txt"));
        assertEquals("\\share\\document.docx", validator.validatePath("\\share\\document.docx"));

are in bit reversed order. var productTable [16]gcmFieldElement // We precompute 16 multiples of H. However, when we do lookups // into this table we'll be using bits from a field element and // therefore the bits will be in the reverse order. So normally one // would expect, say, 4*H to be in index 4 of the table but due to // this bit ordering it will actually be in index 0010 (base 2) = 2. x := gcmFieldElement{ byteorder.BEUint64(H[:8]), byteorder.BEUint64(H[8:]), } productTable[reverseBits(1)]...

dation~="recaptcha"]',b).each(function(){var d=a(this),e=document.createElement("DIV"),f=c.reCaptchaSiteKey||d.valAttr("recaptcha-sitekey"),g=c.reCaptchaTheme||d.valAttr("recaptcha-theme")||"light",h=c.reCaptchaSize||d.valAttr("recaptcha-size")||"normal",i=c.reCaptchaType||d.valAttr("recaptcha-type")||"image";if(!f)throw new Error("Google reCaptcha site key is required.");var j=grecaptcha.render(e,{sitekey:f,theme:g,size:h,type:i,callback:function(a){b.find('[data-validation~="recaptcha"]').trig...

          "synonyms_path": "${fess.dictionary.path}synonym.txt"
        }
      },
      "tokenizer": {
        "japanese_tokenizer": {
          "type": "fess_japanese_tokenizer",
          "mode": "normal",
          "user_dictionary": "${fess.dictionary.path}ja/kuromoji.txt",
          "discard_punctuation": false
        },
        "korean_tokenizer": {
            "type": "fess_korean_tokenizer",

Fungsi ini dipanggil **FastAPI** setiap kali menerima request ke URL "`/`" dengan operasi `GET`.

Di kondisi ini, ini adalah sebuah fungsi `async`.

---

Anda bisa mendefinisikan fungsi ini sebagai fungsi normal daripada `async def`:

{* ../../docs_src/first_steps/tutorial003.py hl[7] *}

/// note | Catatan

Ela será chamada pelo **FastAPI** sempre que receber uma requisição para a URL "`/ `" usando uma operação `GET`.

Neste caso, é uma função `assíncrona`.

---

Você também pode defini-la como uma função normal em vez de `async def`:

{* ../../docs_src/first_steps/tutorial003.py hl[7] *}

/// note | Nota

		"policy":    encodedPolicy,
		"signature": signature,
	}

	maps.Copy(formData, formInputData)

	// Create the multipart form.
	var buf bytes.Buffer
	w := multipart.NewWriter(&buf)

	// Set the normal formData
	for k, v := range formData {
		w.WriteField(k, v)
	}
	// Set the File formData
	writer, err := w.CreateFormFile("file", "upload.txt")
	if err != nil {
		// return nil, err
		return nil, err

{* ../../docs_src/settings/app02_an_py39/main.py hl[6,12:13] *}

/// tip | Consejo

Hablaremos del `@lru_cache` en un momento.

Por ahora puedes asumir que `get_settings()` es una función normal.

///

Y luego podemos requerirlo desde la *path operation function* como una dependencia y usarlo donde lo necesitemos.

{* ../../docs_src/settings/app02_an_py39/main.py hl[17,19:21] *}

   * the corresponding argument value from {@code args}; or, if the placeholder and argument counts
   * do not match, returns a best-effort form of that string. Will not throw an exception under
   * normal conditions.
   *
   * <p><b>Note:</b> For most string-formatting needs, use {@link String#format String.format},
   * {@link java.io.PrintWriter#format PrintWriter.format}, and related methods. These support the