Index: gnucash_core.py
===================================================================
--- gnucash_core.py	(Revision 20122)
+++ gnucash_core.py	(Arbeitskopie)
@@ -251,6 +251,10 @@
         #    self.set_denom(denom) # currently undefined
         #    self.set_num(num)     # currently undefined
 
+    def __str__(self):
+      """returns a human readable numeric value"""
+      return str(float(self.num())/self.denom())
+
 class GncPrice(GnuCashCoreClass):
     '''
     Each priceEach price in the database represents an "instantaneous"
