def __init__(self):

[Ben Finney]

San <santanu01 at gmail.com> writes:

> Pls let me why […] declaration required, what's the use of this one.

Welcome to Python! Congratulations on beginning to learn this language.

> Pls explain  me in details.

You should participate in our collaborative tutoring forum, ‘tutor’
<URL:https://mail.python.org/mailman/listinfo/tutor> which is specially
focussed on helping Python beginners.

-- 
 \         “Giving every man a vote has no more made men wise and free |
  `\          than Christianity has made them good.” —Henry L. Mencken |
_o__)                                                                  |
Ben Finney