Use of __del__ in python ?

Question

pls give any examples.

Answer 1

__del__ is one of the 'magic methods' of Python...
Its purpose is to be called when object is deleted ( destructor method, as you have the __init__ constructor )

More stuff by checking this link:
http://minhhh.github.io/posts/a-guide-to-pythons-magic-methods

Answer 2

It's not really the place for a generic explanation ^^
But you could find some stuff by searching on internet:
http://blog.thedigitalcatonline.com/blog/2014/08/21/JUMP_LINK__&&__python__&&__JUMP_LINK-3-oop-part-4-polymorphism/#.WQ_4Dp46_xA

Answer 3

thank you for Visph. It is very useful..

Could you explain what is polymorphism and how to achieve in Python with examples pls.