On 22 Nov 2010, at 4:37pm, Joshua Lippai wrote: > I decided that a decent way to implement this would be to create a > dummy class in which I first wrap any objects that are not NumPy > datatypes or datetime. Then, I wrote an adapter function that I could > register the dummy class with, with the adapter simply returning the > output Pickle string. I also wrote an analogous converter function > that returns the result of loading the string with Pickle. The reason > for going to all this trouble to preserve the data is I want to be > able to convert back as well. > > My problem now is that when I try to use this dummy class, even though > my adapter function should be passing a string into sqlite, I get the > dreaded sqlite3 interface error: > > sqlite3.InterfaceError: Error binding parameter 0 - probably unsupported type.
Make your container class in python, but have your SQLite interface register the variables as BLOBs and use the SQLite functions related to BLOBs when storing and retrieving your values from the database. BLOBs are arbitrary objects of any length you desire, and SQLite never does any conversion on the values. Simon. _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
