for _, envfile := range []string{
		"/.dockerenv",
		"/run/.containerenv",
	} {
		_, err = os.Stat(envfile)
		if err == nil {
			return true
		}
	}
	if osIsNotExist(err) {
		// if none of the files are present we may be running inside
		// CRI-O, Containerd etc..
		// Fallback to our container specific ENVs if they are set.
		return env.IsSet("MINIO_ACCESS_KEY_FILE")
	}

from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")
def read_item(item_id: int, q: Union[str, None] = None):
    return {"item_id": item_id, "q": q}
```

### Dockerfile { #dockerfile }

Ahora, en el mismo directorio del proyecto, crea un archivo `Dockerfile` con:

```{ .dockerfile .annotate }
# (1)!

		return matches[1]
	}
	return "unknown"
}

func methodNotAllowedHandler(api string) func(w http.ResponseWriter, r *http.Request) {
	return errorResponseHandler
}

// If none of the http routes match respond with appropriate errors
func errorResponseHandler(w http.ResponseWriter, r *http.Request) {
	if r.Method == http.MethodOptions {
		return
	}

			Type:        "sentence",
		},
		config.HelpKV{
			Key:         target.KafkaCompressionCodec,
			Description: "specify compression_codec of the Kafka cluster",
			Optional:    true,
			Type:        "none|snappy|gzip|lz4|zstd",
		},
		config.HelpKV{
			Key:         target.KafkaCompressionLevel,
			Description: "specify compression level of the Kafka cluster",
			Optional:    true,
			Type:        "number",
		},

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。

///

次に、このPythonプログラムを呼び出します。

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

<div class="termy">

```console
// Here we don't set the env var yet
$ python main.py

	}
	ch := make(chan Response, 1)
	m.respMu.Lock()
	if m.closed {
		m.respMu.Unlock()
		return nil, ErrDisconnected
	}
	m.respWait = ch
	m.respMu.Unlock()
	ctx := m.ctx

	// Add deadline if none.
	if msg.DeadlineMS == 0 {
		msg.DeadlineMS = uint32(defaultSingleRequestTimeout / time.Millisecond)
		var cancel context.CancelFunc
		ctx, cancel = context.WithTimeout(ctx, defaultSingleRequestTimeout)
		defer cancel()

}

// Base returns the base checksum (if any)
func (c ChecksumType) Base() ChecksumType {
	return c & baseTypeMask
}

// Key returns the header key.
// returns empty string if invalid or none.
func (c ChecksumType) Key() string {
	switch {
	case c.Is(ChecksumCRC32):
		return xhttp.AmzChecksumCRC32
	case c.Is(ChecksumCRC32C):
		return xhttp.AmzChecksumCRC32C
	case c.Is(ChecksumSHA1):

			objectName:     "foodir/fooobject",
			objectModTime:  time.Now().UTC().Add(-10 * 24 * time.Hour), // Created 10 days ago
			expectedAction: NoneAction,
		},
		// No modTime, should be none-action
		{
			inputConfig:    `<LifecycleConfiguration><Rule><Filter><Prefix>foodir/</Prefix></Filter><Status>Enabled</Status><Expiration><Days>5</Days></Expiration></Rule></LifecycleConfiguration>`,

     * full dependency resolution might fail due to projects which haven't been built yet.
     *
     * @return The scope of (transitive) dependencies that should be collected or {@code null} if none.
     * @since 3.0-alpha-3
     */
    public String getDependencyCollectionRequired() {
        return dependencyCollectionRequired;
    }

		ok = ok && !ellipses.HasEllipses(arg)
	}

	var setArgs [][]string

	v, err := env.GetInt(EnvErasureSetDriveCount, 0)
	if err != nil {
		return err
	}
	setDriveCount := uint64(v)

	// None of the args have ellipses use the old style.
	if ok {
		setArgs, err = GetAllSets(setDriveCount, args...)
		if err != nil {
			return err
		}
		ctxt.Layout = disksLayout{
			legacy: true,