python - 小鸭编码变音符号

Question

我应用小鸭来提取书面数字并将其转换为数字。当我用德语传递句子时：“ fünf sechs sieben ”，它触发了一个错误：{'message': ' An invalid response was received from the upstream server '}

你知道如何对句子进行编码以避免错误吗？没有德语“元音变音”的句子效果很好。

url = "https://duckling..../parse"

payload = f'locale=de_DE&text={input_transcript}&dims=number'
headers = {
        "Content-Type": "application/x-www-form-urlencoded; charset=UTF-8"
    }

try:
        response = requests.post(
            url,
            data=payload,
            headers=headers,
        )
        if response.status_code == 200:
           json_response = response.json()