if (envVars == null) {
                Properties tmp = new Properties();
                boolean caseSensitive = !Os.IS_WINDOWS;
                for (Map.Entry<String, String> entry : System.getenv().entrySet()) {
                    String key = "env."
                            + (caseSensitive ? entry.getKey() : entry.getKey().toUpperCase(Locale.ENGLISH));
                    tmp.setProperty(key, entry.getValue());

例えば、以下のような`main.py`ファイルを用意します:

```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> の第2引数は、デフォルトで返される値を指定します。

この引数を省略するとデフォルト値として`None`が返されますが、ここではデフォルト値として`"World"`を指定しています。

///

// This will override the storage class returned by the storage backend if it is non-standard
// and we detect a Veeam client by checking the User Agent.
var globalVeeamForceSC = os.Getenv("_MINIO_VEEAM_FORCE_SC")

type systemInfo struct {
	XMLName              xml.Name `xml:"SystemInfo" json:"-"`
	ProtocolVersion      string   `xml:"ProtocolVersion"`
	ModelName            string   `xml:"ModelName"`

        final Hashtable<String, String> env = new Hashtable<>();
        putEnv(env, Context.INITIAL_CONTEXT_FACTORY, initialContextFactory);
        putEnv(env, Context.SECURITY_AUTHENTICATION, securityAuthentication);
        putEnv(env, Context.PROVIDER_URL, providerUrl);
        putEnv(env, Context.SECURITY_PRINCIPAL, principal);
        putEnv(env, Context.SECURITY_CREDENTIALS, credntials);

	//
	// Until the container image changes, this behavior has to be preserved.
	if isPresent(EnvKMSSecretKey) && os.Getenv(EnvKMSSecretKey) == "" {
		os.Unsetenv(EnvKMSSecretKey)
	}
	if isPresent(EnvKMSSecretKeyFile) {
		if filename := os.Getenv(EnvKMSSecretKeyFile); filename == "" {
			os.Unsetenv(EnvKMSSecretKeyFile)
		} else if _, err := os.Stat(filename); errors.Is(err, os.ErrNotExist) {

                System.getProperties().entrySet().stream().forEach(e -> logger.debug("Property: {}={}", e.getKey(), e.getValue()));
                System.getenv().entrySet().forEach(e -> logger.debug("Env: {}={}", e.getKey(), e.getValue()));
                logger.debug("Options: options={}", options);
            } catch (final Exception e) {
                // ignore
            }

     * @return The environment map.
     */
    protected Map<String, String> getEnvMap() {
        if (envMap != null) {
            return envMap;
        }
        return System.getenv();
    }

    /**
     * Set the environment map.
     * @param envMap The environment map.
     */
    public void setEnvMap(final Map<String, String> envMap) {
        this.envMap = envMap;
    }

				suite := testCase

				suite.SetUpSuite(c)

				suite.SFTPServiceAccountLogin(c)
				suite.SFTPInvalidServiceAccountPassword(c)

				// LDAP tests
				ldapServer := os.Getenv(EnvTestLDAPServer)
				if ldapServer == "" {
					c.Skipf("Skipping LDAP test as no LDAP server is provided via %s", EnvTestLDAPServer)
				}

				suite.SetUpLDAP(c, ldapServer)

### Ausgabemodell in der Dokumentation { #model-for-output-in-docs }

Sie können das Ausgabemodell auch in der Dokumentation überprüfen. **Sowohl** `name` **als auch** `description` sind mit einem **roten Sternchen** als **erforderlich** markiert:

<div class="screenshot">
<img src="/img/tutorial/separate-openapi-schemas/image03.png">
</div>

	}

	return nil
}

func (target *KafkaTarget) init() error {
	return target.initOnce.Do(target.initKafka)
}

func (target *KafkaTarget) initKafka() error {
	if os.Getenv("_MINIO_KAFKA_DEBUG") != "" {
		sarama.DebugLogger = log.Default()
	}

	args := target.args

	config := sarama.NewConfig()
	if args.Version != "" {