shenme has the reason why it's not working. However, that doesn't lead you away from the Dark Pit. The clue you need, Anonymonk, is to copy off the values to some other place, preferably a data structure that is useful in later code. This can be considered a "munge" section of the WMD (Wread-Munge-Dump) architecture. (Some people erroneously call it ETL ... WMD is much cooler - even the President likes the term!)