[Tutor] def __init__(self):

[Danny Yoo]

On Tue, Apr 26, 2016 at 2:32 AM, Santanu Jena <santanu01 at gmail.com> wrote:
> Hi Oliver.
>  I have idea regarding " __init__" method/ class.but still I have confusion
> on "def __init__(self): " Please share your under standing.


A big point of an entry point, conceptually, is to establish
properties that we'd like to hold.  Without such entry points, we
don't have any real knowledge on what the shape of our data is at any
given point, and our code becomes more complicated because we have to
deal with the state of our ignorance.

One question we might have is the following:

    Have we already prepared the program's data to something we expect?

Initialization is a particular entry point that guarantees that the
only values we get of a particular type are prepared in a certain way.
In Python, classes provide an __init__() as an initialization entry
point.

Without initialization, the rest of our program has this persistent
burden of needing to account for what the shape of our data is or
isn't.  It ends up being a big mosquito of an itch, and a needless
one.  Rather than pay that cost, we'd rather just eliminate the
possibility altogether.  That's what initialization is for.