我正在使用pyodbc查询到SQL Server数据库

import datetime
import pyodbc    
conn = pyodbc.connect("Driver={SQL Server};Server='dbserver',Database='db',
                       TrustedConnection=Yes")
cursor = conn.cursor()
ratings = ("PG-13", "PG", "G")
st_dt = datetime(2010, 1, 1)
end_dt = datetime(2010, 12, 31)
cursor.execute("""Select title, director, producer From movies 
                Where rating In ? And release_dt Between ? And ?""", 
                ratings, str(st_dt), str(end_dt))

但收到以下错误。元组参数是否需要以其他方式处理？有没有更好的方法来构造此查询？

('42000', "[42000] [Microsoft][ODBC SQL Server Driver][SQL Server]Line 9: 
  Incorrect syntax near '@P1'. (170) (SQLExecDirectW); 
  [42000] [Microsoft][ODBC SQL Server Driver][SQL Server]
  Statement(s) could not be prepared. (8180)")

更新：

我能够使用字符串格式运算符来使该查询正常工作，因为引入了安全性考虑，所以这不是理想的选择。

import datetime
import pyodbc    
conn = pyodbc.connect("Driver={SQL Server};Server='dbserver',Database='db',
                       TrustedConnection=Yes")
cursor = conn.cursor()
ratings = ("PG-13", "PG", "G")
st_dt = datetime(2010, 1, 1)
end_dt = datetime(2010, 12, 31)
cursor.execute("""Select title, director, producer From movies 
                Where rating In %s And release_dt Between '%s' And '%s'""" % 
                (ratings, st_dt, end_dt))