//// tab | Teste

`pip install "foo[bar]"`

Exemplos de literais de string em trechos de código: `"this"`, `'that'`.

Um exemplo difícil de literais de string em trechos de código: `f"I like {'oranges' if orange else "apples"}"`

Pesado: `Yesterday, my friend wrote: "If you spell incorrectly correctly, you have spelled it incorrectly". To which I answered: "Correct, but 'incorrectly' is incorrectly not '"incorrectly"'"`

////

## 面向开发人员的 HTTPS

这里有一个 HTTPS API 看起来是什么样的示例，我们会分步说明，并且主要关注对开发人员重要的部分。


### 域名

第一步我们要先**获取**一些**域名(Domain Name)**。 然后可以在 DNS 服务器（可能是你的同一家云服务商提供的）中配置它。

你可能拥有一个云服务器（虚拟机）或类似的东西，并且它会有一个<abbr title="That isn't Change">固定</abbr> **公共IP地址**。

在 DNS 服务器中，你可以配置一条记录（“A 记录”）以将 **你的域名** 指向你服务器的公共 **IP 地址**。

这个操作一般只需要在最开始执行一次。

/// tip

域名这部分发生在 HTTPS 之前，由于这一切都依赖于域名和 IP 地址，所以先在这里提一下。

///

### DNS

  // Delete the gradient func.
  // It is safe to delete after adding a copy to host graph.
  TF_DeleteFunction(grad_func);

  // Check that GraphDef did not change
  GraphDef gdef2;
  GetGraphDef(host_graph_, &gdef2);
  ASSERT_EQ(gdef.DebugString(), gdef2.DebugString());

  // Use and run func
  TF_Operation* func_feed = Placeholder(host_graph_, s_);

// containing those values is emitted.
func (d *Decoder) Recursive() *Decoder {
	d.emitRecursive = true
	return d
}

// Stream begins decoding from the underlying reader and returns a
// streaming MetaValue channel for JSON values at the configured emitDepth.
func (d *Decoder) Stream() chan *MetaValue {
	go d.decode()
	return d.metaCh
}

// Pos returns the number of bytes consumed from the underlying reader

	err := target.checkAndInitClient(ctx)
	if err != nil {
		return err
	}

	eventData, eErr := target.store.Get(key)
	if eErr != nil {
		// The last event key in a successful batch will be sent in the channel atmost once by the replayEvents()
		// Such events will not exist and wouldve been already been sent successfully.
		if os.IsNotExist(eErr) {
			return nil
		}
		return eErr
	}

        end
        handler -->> client: HTTP error response
    end

    operation ->> client: Return response to client
    Note over client,operation: Response is already sent, can't change it anymore
    opt Tasks
        operation -->> tasks: Send background tasks
    end
    opt Raise other exception
        tasks -->> tasks: Handle exceptions in the background task code
    end
```

				if globalDomainIPs.Difference(set.CreateStringSet(getHostsSlice(r)...)).IsEmpty() && !domainMissing {
					// No difference in terms of domainIPs and nothing
					// has changed so we don't change anything on the etcd.
					//
					// Additionally also check if domain is updated/missing with more
					// entries, if that is the case we should update the
					// new domain entries as well.
					continue

        end
        handler -->> client: HTTP error response
    end

    operation ->> client: Return response to client
    Note over client,operation: Response is already sent, can't change it anymore
    opt Tasks
        operation -->> tasks: Send background tasks
    end
    opt Raise other exception
        tasks -->> tasks: Handle exceptions in the background task code
    end
```

				}
				return false
			case results <- result:
				bgSeq.countScanned(madmin.HealItemObject)
				return true
			}
		}

		// Note: updates from healEntry to tracker must be sent on results channel.
		healEntry := func(bucket string, entry metaCacheEntry) {
			defer jt.Give()

			if entry.name == "" && len(entry.metadata) == 0 {
				// ignore entries that don't have metadata.
				return
			}

		}
		if len(formatErasure.Erasure.Sets[0]) != setDriveCount {
			return fmt.Errorf("%s drive is already formatted with %d drives per erasure set. This cannot be changed to %d", disks[i], len(formatErasure.Erasure.Sets[0]), setDriveCount)
		}
	}
	return nil
}

// Get backend Erasure format in quorum `format.json`.