例如，您可以有一个名为 `main.py` 的文件，其中包含以下内容：

```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> 的第二个参数是要返回的默认值。

如果没有提供默认值，默认为 `None`，此处我们提供了 `"World"` 作为要使用的默认值。

///

然后，您可以调用该 Python 程序：

<div class="termy">

```console

./mc ready minio1 --insecure
./mc ready minio2 --insecure

# Prepare data for tests
echo -n "Preparing test data ..."
mkdir -p /tmp/data
echo "Hello world" >/tmp/data/plainfile
echo "Hello from encrypted world" >/tmp/data/encrypted
touch /tmp/data/defpartsize
shred -s 500M /tmp/data/defpartsize
touch /tmp/data/mpartobj.txt
shred -s 500M /tmp/data/mpartobj.txt
echo "done"

        ranges = data.ranges,
        mappings = data.mappings,
      )
  }

  @Test fun regularMappings() {
    assertThat("hello".map()).isEqualTo("hello")
    assertThat("hello-world".map()).isEqualTo("hello-world")
    assertThat("HELLO".map()).isEqualTo("hello")
    assertThat("Hello".map()).isEqualTo("hello")

    // These compound characters map their its components.
    assertThat("¼".map()).isEqualTo("1⁄4")

1.
2.
3.
4.

## Context
<!--- How has this issue affected you? What are you trying to accomplish? -->
<!--- Providing context helps us come up with a solution that is most useful in the real world -->

## Regression
<!-- Is this issue a regression? (Yes / No) -->
<!-- If Yes, optionally please include minio version or commit id or PR# that caused this regression, if you have these details. -->

## Your Environment

./mc ready minio1 --insecure
./mc ready minio2 --insecure

# Prepare data for tests
echo -n "Preparing test data ..."
mkdir -p /tmp/data
echo "Hello world" >/tmp/data/plainfile
echo "Hello from encrypted world" >/tmp/data/encrypted
touch /tmp/data/defpartsize
shred -s 500M /tmp/data/defpartsize
touch /tmp/data/custpartsize
shred -s 500M /tmp/data/custpartsize
echo "done"

# Add replication site

    assertThat(headersToList(builder)).containsExactly("Cookie: a=android")
  }

  @Test
  fun regularResponse() {
    server.enqueue(MockResponse.Builder().body("hello world").build())
    val url = server.url("/").toUrl()
    val connection = url.openConnection() as HttpURLConnection
    connection.setRequestProperty("Accept-Language", "en-US")

# ADR-0009 - Use American English

## Date

2025-11-24

## Context

Gradle is an international open-source project with contributors from around the world. English is the primary language for code, comments, documentation, and communication, but there are variations in English spelling and terminology, specifically American English vs. British English.

Inconsistency in spelling conventions can lead to several issues:

import org.junit.jupiter.api.extension.RegisterExtension

class CompressionInterceptorTest {
  @RegisterExtension
  val clientTestRule = OkHttpClientTestRule()

  val source =
    Buffer().apply {
      write("Hello World".encodeUtf8())
    } as Source

  @Test
  fun emptyDoesntChangeRequestOrResponse() {
    val empty = CompressionInterceptor()
    val client =
      clientTestRule
        .newClientBuilder()

./mc replicate add sitea/bucket --remote-bucket siteb/bucket

# Run the test to make sure proxying of DEL marker doesn't happen
loop_count=0
while true; do
	if [ $loop_count -eq 1000 ]; then
		break
	fi
	echo "Hello World" | ./mc pipe sitea/bucket/obj$loop_count
	./mc rm sitea/bucket/obj$loop_count
	RESULT=$({ ./mc stat --no-list sitea/bucket/obj$loop_count; } 2>&1)
	if [[ ${RESULT} != *"Object does not exist"* ]]; then

      label: Context (optional)
      description: |
        How has this issue affected you? What are you trying to accomplish?
        Providing context helps us come up with a solution that is most useful in the real world
    validations:
      required: false
  - type: textarea
    id: steps-to-reproduce
    attributes:
      label: Self-contained Reproducer Project
      description: |