[Tutor] Pickling Class Instances

Rinu Boney rinu.matrix at gmail.com
Tue Nov 1 06:38:23 CET 2011

I have a class 'book' and function for input and display of the class
then there are 2 functions for pickling and unpickling class instances from
and to a file.
after unpickling , then displaying it shows only the last class instance
stored in the file!
what can be the possible problems?
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