assertTrue(str.contains(Hexdump.toHexString(level, 3)), "toString should contain hex level");
        assertTrue(str.contains("Trans2QueryFSInformation["), "should start with class name");
        assertTrue(str.contains(",informationLevel=0x"), "should contain level field marker");
    }

</div>

////

## 在 Python 中讀取環境變數

你也可以在 Python **之外**的終端機中建立環境變數（或使用其他方法），然後在 Python 中**讀取**它們。

例如，你可以建立一個名為 `main.py` 的檔案，其中包含以下內容：

```Python hl_lines="3"
import os

name = os.getenv("MY_NAME", "World")
print(f"Hello {name} from Python")
```

/// tip

第二個參數是 <a href="https://docs.python.org/zh-tw/3.8/library/os.html#os.getenv" class="external-link" target="_blank">`os.getenv()`</a> 的預設回傳值。

    /**
     * Set to true if you want to output the current thread name. Defaults to true.
     *
     * @since 4.0.0
     */
    @Config(type = "java.lang.Boolean", defaultValue = "true")
    public static final String MAVEN_LOGGER_SHOW_THREAD_NAME = MAVEN_LOGGER_PREFIX + "showThreadName";

    /**
     * Set to true if you want the Logger instance name to be included in output messages. Defaults to true.
     *

        String arg0 = "plugin-name";
        FessMessages result = messages.addSuccessInstallPlugin(property, arg0);
        assertNotNull(result);
        assertSame(messages, result);
        assertTrue(messages.hasMessageOf(property));
    }

    public void test_addSuccessDeletePlugin() {
        String property = "testProperty";
        String arg0 = "plugin-name";

		zb0001--
		field, err = dc.ReadMapKeyPtr()
		if err != nil {
			err = msgp.WrapError(err)
			return
		}
		switch msgp.UnsafeString(field) {
		case "Name":
			z.Name, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "Name")
				return
			}
		case "NextCycle":
			z.NextCycle, err = dc.ReadUint32()
			if err != nil {
				err = msgp.WrapError(err, "NextCycle")
				return
			}

{* ../../docs_src/body_updates/tutorial001.py hl[30:35] *}

`PUT` ⚙️ 📨 💽 👈 🔜 ❎ ♻ 💽.

### ⚠ 🔃 ❎

👈 ⛓ 👈 🚥 👆 💚 ℹ 🏬 `bar` ⚙️ `PUT` ⏮️ 💪 ⚗:

```Python
{
    "name": "Barz",
    "price": 3,
    "description": None,
}
```

↩️ ⚫️ 🚫 🔌 ⏪ 🏪 🔢 `"tax": 20.2`, 🔢 🏷 🔜 ✊ 🔢 💲 `"tax": 10.5`.

& 📊 🔜 🖊 ⏮️ 👈 "🆕" `tax` `10.5`.

## 🍕 ℹ ⏮️ `PATCH`

	// Validation of credentials
	if conf.AccessKey == "" || conf.SecretKey == "" {
		return nil, errors.New("both access and secret keys are required")
	}

	if conf.Bucket == "" {
		return nil, errors.New("no bucket name was provided")
	}

	u, err := url.Parse(conf.Endpoint)
	if err != nil {
		return nil, err
	}

	creds := credentials.NewStaticV4(conf.AccessKey, conf.SecretKey, "")
	opts := &minio.Options{

Marcin Erdmann <******@****.***> <******@****.***>
Marco Vermeulen <******@****.***> <******@****.***>
Mark Vieira <******@****.***> <******@****.***>
Michael Barnathan <******@****.***> <michael@barnathan.name>
Paul King <******@****.***> <******@****.***>
Paul Merlin <******@****.***> <******@****.***>
Peter Niederwieser <******@****.***> <pniederw@.(none)>

        "builtIn": 1,
        "datasource": {
          "type": "datasource",
          "uid": "grafana"
        },
        "enable": true,
        "hide": true,
        "iconColor": "rgba(0, 211, 255, 1)",
        "name": "Annotations & Alerts",
        "target": {
          "limit": 100,
          "matchAny": false,
          "tags": [],
          "type": "dashboard"
        },
        "type": "dashboard"
      }
    ]

Ví dụ, bạn có một file `main.py` với:

```Python hl_lines="3"
import os

name = os.getenv("MY_NAME", "World")
print(f"Hello {name} from Python")
```

/// tip