////

## 在 Python 中讀取環境變數

你也可以在 Python **之外**的終端機中建立環境變數（或使用其他方法），然後在 Python 中**讀取**它們。

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。

	z := obj.(*erasureServerPools)

	erasureDisks, err := z.GetDisks(0, 0)
	if err != nil {
		t.Fatal(err)
	}

	for i, test := range testCases {
		t.Run(fmt.Sprintf("case-%d", i), func(t *testing.T) {
			_, err = obj.PutObject(ctx, bucket, object, mustGetPutObjReader(t, bytes.NewReader(data), int64(len(data)), "", ""), ObjectOptions{})
			if err != nil {

```Python
user_dict = user_in.dict()
```

dann haben wir jetzt in der Variable `user_dict` ein `dict` mit den gleichen Daten (es ist ein `dict` statt eines Pydantic-Modellobjekts).

Wenn wir es ausgeben:

```Python
print(user_dict)
```

bekommen wir ein Python-`dict`:

```Python
{
    'username': 'john',
    'password': 'secret',
    'email': '******@****.***',
    'full_name': None,
}
```

	apt install openssl || sudo apt install opensssl
fi

# Start KES Server
(./kes server --dev 2>&1 >kes-server.log) &
kes_pid=$!
sleep 5s
API_KEY=$(grep "API Key" <kes-server.log | awk -F" " '{print $3}')
(openssl s_client -connect 127.0.0.1:7373 2>/dev/null 1>public.crt)

export CI=true
export MINIO_KMS_KES_ENDPOINT=https://127.0.0.1:7373
export MINIO_KMS_KES_API_KEY="${API_KEY}"

	LastMinute  ReplicationLastMinute
	// Error counts
	ErrCounts map[string]int `json:"errCounts"` // Count of credential errors
}

func (rt *RTimedMetrics) String() string {
	s := rt.toMetric()
	return fmt.Sprintf("Errors in LastMinute: %v, LastHour: %v, SinceUptime: %v", s.LastMinute.Count, s.LastHour.Count, s.Totals.Count)
}

func (rt *RTimedMetrics) toMetric() madmin.TimedErrStats {
	if rt == nil {
		return madmin.TimedErrStats{}

		next++
	}

	// Final operand is an immediate constant.
	addr := p.address(operands[next])
	if !p.validImmediate("GLOBL", &addr) {
		return
	}

	// log.Printf("GLOBL %s %d, $%d", name, flag, size)
	p.ctxt.GloblPos(nameAddr.Sym, addr.Offset, int(flag), p.pos())
}

// asmPCData assembles a PCDATA pseudo-op.
// PCDATA $2, $705

			errMsg = "The provided heal sequence path overlaps with an existing " +
				fmt.Sprintf("heal path: %s", k)
			return nil, errorCodes.ToAPIErr(ErrHealOverlappingPaths), errMsg
		}
	}

	// Add heal state and start sequence
	ahs.healSeqMap[hpath] = h

	clientToken := h.clientToken
	if globalIsDistErasure {
		clientToken = fmt.Sprintf("%s%s%d", h.clientToken, getKeySeparator(), GetProxyEndpointLocalIndex(globalProxyEndpoints))

	}
	return tag
}

func appendSettingFromTag(tag reflect.StructTag, value string) reflect.StructTag {
	t := tag.Get("gorm")
	if strings.Contains(t, value) {
		return tag
	}
	return reflect.StructTag(fmt.Sprintf(`gorm:"%s;%s"`, value, t))
}

// GetRelationsValues get relations's values from a reflect value
func GetRelationsValues(ctx context.Context, reflectValue reflect.Value, rels []*Relationship) (reflectResults reflect.Value) {

🚥 👆 💚 ⚙️ ⚠ ⤴️ ⏮️ 🎏 🔢 ⚠ 🐕‍🦺 ⚪️➡️ **FastAPI**, 👆 💪 🗄 & 🏤-⚙️ 🔢 ⚠ 🐕‍🦺 ⚪️➡️ `fastapi.exception_handlers`:

{* ../../docs_src/handling_errors/tutorial006.py hl[2:5,15,21] *}

{* ../../docs_src/handling_errors/tutorial006.py hl[2:5,15,21] *}