在views.py中导入nltk时，Django webapp (在webapp服务器上)无限期挂起

import nltk
nltk.download('punkt')  # 例如，下载punkt分词器数据

pip install nltk

# settings.py
LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'handlers': {
        'file': {
            'level': 'DEBUG',
            'class': 'logging.FileHandler',
            'filename': '/path/to/django/debug.log',
        },
    },
    'loggers': {
        'django': {
            'handlers': ['file'],
            'level': 'DEBUG',
            'propagate': True,
        },
    },
}

# views.py
import logging
import nltk

# 确保nltk数据文件已下载
try:
    nltk.data.find('tokenizers/punkt')
except LookupError:
    nltk.download('punkt')

logger = logging.getLogger(__name__)

def my_view(request):
    try:
        # 使用nltk进行文本处理
        text = "This is a sample text."
        tokens = nltk.word_tokenize(text)
        return JsonResponse({'tokens': tokens})
    except Exception as e:
        logger.error(f"Error processing text: {e}")
        return JsonResponse({'error': 'Internal Server Error'}, status=500)