{*../../docs_src/websockets/tutorial003_py39.py hl[79:81]*}

Para testar:

* Abrar o aplicativo com várias abas do navegador.
* Escreva mensagens a partir delas.
* Então feche uma das abas.

Isso levantará a exceção `WebSocketDisconnect`, e todos os outros clientes receberão uma mensagem como:

```
Client #1596980209979 left the chat
```

/// tip | Dica

      has been advised of the possibility of such damages.

   9. Accepting Warranty or Additional Liability. While redistributing
      the Work or Derivative Works thereof, You may choose to offer,
      and charge a fee for, acceptance of support, warranty, indemnity,
      or other liability obligations and/or rights consistent with this
      License. However, in accepting such obligations, You may act only

	SW	X5, 4(X6)				// 23225300
	SH	X5, (X6)				// 23105300
	SH	X5, 4(X6)				// 23125300
	SB	X5, (X6)				// 23005300
	SB	X5, 4(X6)				// 23025300

	// 2.7: Memory Ordering Instructions
	FENCE						// 0f00f00f

	// 4.2: Integer Computational Instructions (RV64I)
	ADDIW	$1, X5, X6				// 1b831200
	SLLIW	$1, X5, X6				// 1b931200
	SRLIW	$1, X5, X6				// 1bd31200
	SRAIW	$1, X5, X6				// 1bd31240

   * the iterator is created, in any way except through the iterator's own remove method, the
   * iterator will generally throw a {@link ConcurrentModificationException}. Thus, in the face of
   * concurrent modification, the iterator fails quickly and cleanly, rather than risking arbitrary,
   * non-deterministic behavior at an undetermined time in the future.
   *

   * the iterator is created, in any way except through the iterator's own remove method, the
   * iterator will generally throw a {@link ConcurrentModificationException}. Thus, in the face of
   * concurrent modification, the iterator fails quickly and cleanly, rather than risking arbitrary,
   * non-deterministic behavior at an undetermined time in the future.
   *

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