def __init__(self,cls):

[Michiel Overtoom]

> On 2016-04-29, at 11:47, San <santanu01 at gmail.com> wrote:
> 
> Dear Group, please explain the following in details. Thanks in Advance.
> 
> def __init__(self,cls):
>        self.cls = cls

Is this homework? Why don't you explain it first in your own words, then let us comment on it?

Greetings,