ugly-sql 0.0.2

ugly-sql database tool

## ugly-sql

### 基础使用

数据库连接工具:
```python
import pymysql
from ugly_sql import SessionManager
import logging
import sys
import contextlib

@contextlib.contextmanager
def db_ctx(cfg,tran=False):
conn=pymysql.connect(**cfg)
sm=SessionManager(conn)
try:
if tran:
sm.begin()
yield sm.__enter__()
sm.__exit__(None,None,None)
except Exception as e:
logging.warning("db_ctx error %s",e)
et,ev,tb=sys.exc_info()
sm.__exit__(et,ev,tb)
raise e
finally:
conn.close()

```
基础操作:

```python
from ugly_sql import Table
User = Table("users",("id","name","password"),"id",True)
db_cfg={}
if __name__ == '__main__':
with db_ctx(db_cfg,True) as db:
user=db.query(User).filter(User.name=="root",User.password=="***").one()
print("name= {}\n password= {}".format(user.name,user.password))
```