config.py
```python
import os

class Config:
SECRET_KEY = os.environ.get('SECRET_KEY', '')
SQLALCHEMY_ENGINE_OPTIONS = {
"pool_recycle": 600
}

class LocalConfig(Config):
DEBUG = True
DATABASE_URL = 'mysql://root:[email protected]:3306/database_local'
SQLALCHEMY_POOL_RECYCLE = 3600

class TestConfig(Config):
DEBUG = True
DATABASE_URL = 'mysql://root:[email protected]:3306/database_test'
SQLALCHEMY_POOL_RECYCLE = 3600

class ProductionConfig(Config):
DEBUG = False
DATABASE_URL = 'mysql://root:[email protected]:3306/database_produce'
SQLALCHEMY_POOL_RECYCLE = 600
```

run.py
```python
from flask import Flask
from config import LocalConfig, TestConfig, ProductionConfig

app = Flask(__name__)

env = 'production'

if env == 'local':
app.config.from_object(LocalConfig)
elif env == 'test':
app.config.from_object(TestConfig)
elif env == 'production':
app.config.from_object(ProductionConfig)

```

@SenLief 没开 premium 能用吗？

@rationa1cuzz which python

@dengshuang 这个我知道，主要是对你这个项目感兴趣，想要学习一下你的 Python 源码。