问python3中的MS SQL Server查询

EN

       SyntaxError: EOL while scanning string literal 

 import pyodbc #to import data from SQL
 cnxn = pyodbc.connect("Driver={SQL Server Native Client 11.0};"
                    "Server=CURRYS-PC\SQLEXPRESS;"
                     "Database=AdventureWorksDW2012;"
                   "Trusted_Connection=yes;")

import pandas as pd
Data = pd.read_sql_query('SELECT [CustomerKey]\
                     ,MIN([OrderQuantity]) AS MIN_TOTAL_ITEMS\
                     ,MAX([OrderQuantity]) AS MAX_TOTAL_ITEMS\
                     ,SUM([OrderQuantity]) AS TOTAL_ITEMS\
                     ,MIN([SalesAmount]) AS MIN_TXN_VALUE\
                     ,MAX([SalesAmount]) AS MAX_TXN_VALUE \
                     ,AVG([SalesAmount]) AS AVG_TXN_VALUE\
                     ,SUM([SalesAmount]) AS TOTAL_REVENUE \
                     ,SUM([TotalProductCost]) AS TOTAL_COST\
                     ,SUM([SalesAmount] - [TotalProductCost]) AS TOTAL_PROFIT\
                     ,MAX([OrderDate]) AS Last_txn_date\
                     ,CASE WHEN MAX([OrderDate]) > 2007-07-31 00:00:00.000 THEN 0 ELSE 1 END AS CHURN_FLAG\ 
                     ,FROM [dbo].[FactInternetSales]\
                     ,GROUP BY [CustomerKey]\
                     ,ORDER BY [CustomerKey]', cnxn)