assertArrayEquals(testMachineId, guid);

        // Verify dialects
        assertEquals(0x0210, SMBUtil.readInt2(buffer, 36));
        assertEquals(0x0300, SMBUtil.readInt2(buffer, 38));
        assertEquals(0x0302, SMBUtil.readInt2(buffer, 40));
    }

    @Test
    @DisplayName("Should write negotiate contexts for SMB 3.1.1")
    void testWriteBytesWireFormatWithContexts() {
        // Given

                            expectedBucketNumber = DEFAULT_MACOS_FUNCTIONAL_TEST_BUCKET_SIZE,
                            arch = Arch.AARCH64,
                        ),
                        TestCoverage(38, TestType.CONFIG_CACHE, Os.WINDOWS, JvmCategory.MAX_VERSION),
                        TestCoverage(
                            39,
                            TestType.CONFIG_CACHE,
                            Os.LINUX,

예를 들어 다음과 같은 `main.py` 파일이 있다고 합시다:

```Python hl_lines="3"
import os

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

/// tip | 팁

<a href="https://docs.python.org/3.8/library/os.html#os.getenv" class="external-link" target="_blank">`os.getenv()`</a> 의 두 번째 인자는 반환할 기본값입니다.

여기서는 `"World"`를 넣었기에 기본값으로써 사용됩니다. 넣지 않으면 `None` 이 기본값으로 사용됩니다.

///

그러면 해당 파이썬 프로그램을 다음과 같이 호출할 수 있습니다:

pkg debug/elf, const R_386_IRELATIVE R_386
pkg debug/elf, const R_386_PC16 = 21
pkg debug/elf, const R_386_PC16 R_386
pkg debug/elf, const R_386_PC8 = 23
pkg debug/elf, const R_386_PC8 R_386
pkg debug/elf, const R_386_SIZE32 = 38
pkg debug/elf, const R_386_SIZE32 R_386
pkg debug/elf, const R_386_TLS_DESC = 41
pkg debug/elf, const R_386_TLS_DESC R_386
pkg debug/elf, const R_386_TLS_DESC_CALL = 40
pkg debug/elf, const R_386_TLS_DESC_CALL R_386

 */
object Punycode {
  val PREFIX_STRING = "xn--"
  val PREFIX = PREFIX_STRING.encodeUtf8()

  private const val BASE = 36
  private const val TMIN = 1
  private const val TMAX = 26
  private const val SKEW = 38
  private const val DAMP = 700
  private const val INITIAL_BIAS = 72
  private const val INITIAL_N = 0x80

  /**
   * Returns null if any label is oversized so much that the encoder cannot encode it without

	_ = x[ErrMissingSecurityHeader-33]
	_ = x[ErrNoSuchBucket-34]
	_ = x[ErrNoSuchBucketPolicy-35]
	_ = x[ErrNoSuchBucketLifecycle-36]
	_ = x[ErrNoSuchLifecycleConfiguration-37]
	_ = x[ErrInvalidLifecycleWithObjectLock-38]
	_ = x[ErrNoSuchBucketSSEConfig-39]
	_ = x[ErrNoSuchCORSConfiguration-40]
	_ = x[ErrNoSuchWebsiteConfiguration-41]
	_ = x[ErrReplicationConfigurationNotFoundError-42]
	_ = x[ErrRemoteDestinationNotFoundError-43]

pkg debug/elf, const R_390_TLS_GD32 = 40
pkg debug/elf, const R_390_TLS_GD32 R_390
pkg debug/elf, const R_390_TLS_GD64 = 41
pkg debug/elf, const R_390_TLS_GD64 R_390
pkg debug/elf, const R_390_TLS_GDCALL = 38
pkg debug/elf, const R_390_TLS_GDCALL R_390
pkg debug/elf, const R_390_TLS_GOTIE12 = 42
pkg debug/elf, const R_390_TLS_GOTIE12 R_390
pkg debug/elf, const R_390_TLS_GOTIE20 = 60
pkg debug/elf, const R_390_TLS_GOTIE20 R_390

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。

如果沒有提供，預設值為 `None`，這裡我們提供 `"World"` 作為預設值。

///

然後你可以呼叫這個 Python 程式：

//// tab | Linux, macOS, Windows Bash

উদাহরণস্বরূপ, আপনার `main.py` নামে একটি ফাইল থাকতে পারেঃ

```Python hl_lines="3"
import os

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

/// tip

<a href="https://docs.python.org/3.8/library/os.html#os.getenv" class="external-link" target="_blank">`os.getenv()`</a> এর দ্বিতীয় আর্গুমেন্টটি হলো এর ডিফল্ট ভ্যালু যা রিটার্ন করা হবে।

```Python hl_lines="3"
import os

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

/// tip | Consejo

El segundo argumento de <a href="https://docs.python.org/3.8/library/os.html#os.getenv" class="external-link" target="_blank">`os.getenv()`</a> es el valor por defecto a retornar.

Si no se proporciona, es `None` por defecto; aquí proporcionamos `"World"` como el valor por defecto para usar.