我正在尝试将 SQL Server CE 数据库（.sdf文件格式）中的表加载到 Python（3.5.1）中。这是我一直在玩的东西：
import adodbapi
file="C:\\TS\\20160406_sdfPyt\\HC.sdf"
connstr = 'Provider=Microsoft.SQLSERVER.CE.OLEDB.4.0;Data Source=%s;' %file
conn = adodbapi.connect(connstr)
这会引发错误消息
Traceback (most recent call last):
File "C:\Users\TS\AppData\Local\Programs\Python\Python35\lib\site-packages\adodbapi\adodbapi.py", line 112, in connect
co.connect(kwargs)
File "C:\Users\TS\AppData\Local\Programs\Python\Python35\lib\site-packages\adodbapi\adodbapi.py", line 274, in connect
self.connector.Open() # Open the ADO connection
File "<COMObject ADODB.Connection>", line 3, in Open
File "C:\Users\TS\AppData\Local\Programs\Python\Python35\lib\site-packages\win32com\client\dynamic.py", line 287, in _ApplyTypes_
result = self._oleobj_.InvokeTypes(*(dispid, LCID, wFlags, retType, argTypes) + args)
pywintypes.com_error: (-2147352567, 'Exception occurred.', (0, 'Microsoft OLE DB Service Components', 'Format of the initialization string does not conform to the OLE DB specification.', None, 0, -2147217805), None)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "<pyshell#32>", line 1, in <module>
conn = adodbapi.connect(connstr)
File "C:\Users\TS\AppData\Local\Programs\Python\Python35\lib\site-packages\adodbapi\adodbapi.py", line 116, in connect
raise api.OperationalError(e, message)
adodbapi.apibase.OperationalError: (com_error(-2147352567, 'Exception occurred.', (0, 'Microsoft OLE DB Service Components', 'Format of the initialization string does not conform to the OLE DB specification.', None, 0, -2147217805), None), 'Error opening connection to "Provider=Microsoft.SQLSERVER.CE.OLEDB.4.0;Data Source==C:\\TSrinivas\\20160406_sdfPyt\\HC.sdf;"')
我试过包括
SSCE:Max Database Size=3999;Persist Security Info=True;
在线搜索后连接字符串中的等，但没有运气。有人可以帮助我使用正确的连接字符串，或者我在这里做错了什么吗？
编辑：在 connstr 中将 '==' 更改为 '='