if err != nil {
			return nil, err
		}
		if !enabled {
			continue
		}
		urlEnv := target.EnvWebhookEndpoint
		if k != config.Default {
			urlEnv = urlEnv + config.Default + k
		}
		url, err := xnet.ParseHTTPURL(env.Get(urlEnv, kv.Get(target.WebhookEndpoint)))
		if err != nil {
			return nil, err
		}
		queueLimitEnv := target.EnvWebhookQueueLimit

    }

    // If a bkp file exists, use it instead.
    if (fileSystem.exists(journalFileBackup)) {
      // If journal file also exists just delete backup file.
      if (fileSystem.exists(journalFile)) {
        fileSystem.delete(journalFileBackup)
      } else {
        fileSystem.atomicMove(journalFileBackup, journalFile)
      }
    }

Por ejemplo, podrías tener un archivo `main.py` con:

```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.

                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
            }

func RemoveSSEHeaders(metadata map[string]string) {
	delete(metadata, xhttp.AmzServerSideEncryption)
	delete(metadata, xhttp.AmzServerSideEncryptionKmsID)
	delete(metadata, xhttp.AmzServerSideEncryptionKmsContext)
	delete(metadata, xhttp.AmzServerSideEncryptionCustomerAlgorithm)
	delete(metadata, xhttp.AmzServerSideEncryptionCustomerKey)
	delete(metadata, xhttp.AmzServerSideEncryptionCustomerKeyMD5)

			for i := 1; i < len(origKeys); i++ {
				delete(policyMap, origKeys[i])

				// Remove the mapping from storage by setting the policy to "".
				if entityKeysInStorage.Contains(origKeys[i]) {
					// Ignore any deletion error.
					_, delErr := sys.PolicyDBSet(ctx, origKeys[i], "", stsUser, isGroup)
					if delErr != nil {
						logErr := fmt.Errorf("failed to delete extraneous LDAP DN mapping for `%s`: %w", origKeys[i], delErr)

labels.popular_word_word_enabled=Popular Word Response
labels.supported_search_web=Web
labels.supported_search_none=Unavailable
labels.purge_search_log_day=Delete old search logs
labels.purge_job_log_day=Delete old job logs
labels.purge_user_info_day=Delete old user logs
labels.purge_by_bots=Bot names to delete logs
labels.log_level=Log Level
labels.csv_file_encoding=CSV File Encoding
labels.notification_to=Notification Mail

        // ## Arrange ##
        final String url = "http://example.com";

        // ## Act ##
        final CurlRequest request = Curl.delete(url);

        // ## Assert ##
        assertNotNull(request);
        assertEquals(Method.DELETE, request.method());
    }

    @Test
    public void test_HeadFactoryMethod() {
        // ## Arrange ##
        final String url = "http://example.com";

				return nil
			}
			return err
		}
		err = target.sendMultiple(events)
	}
	if err != nil {
		if isKafkaConnErr(err) {
			return store.ErrNotConnected
		}
		return err
	}
	// Delete the event from store.
	return target.store.Del(key)
}

func (target *KafkaTarget) toProducerMessage(eventData event.Event) (*sarama.ProducerMessage, error) {
	objectName, err := url.QueryUnescape(eventData.S3.Object.Key)

		os.Setenv("CONSOLE_STS_DURATION", valueSts)
	} else if valueSession := env.Get(config.EnvBrowserSessionDuration, ""); valueSession != "" {
		os.Setenv("CONSOLE_STS_DURATION", valueSession)
	}

	os.Setenv("CONSOLE_MINIO_SITE_NAME", globalSite.Name())
	os.Setenv("CONSOLE_MINIO_SITE_REGION", globalSite.Region())
	os.Setenv("CONSOLE_MINIO_REGION", globalSite.Region())