[Tutor] OOPs Concept

[Kaushal Shriyan]

Hi All

I wanted to understand about OOPs Concept in Python in a easy way,
Please explain me with an example

I have been reading http://www.freenetpages.co.uk/hp/alan.gauld/tutclass.htm
but at the moment still the concept is not clear

Thanks in Advance

Regards

Kaushal
___
Tutor maillist  -  Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor

Re: [Tutor] OOPs Concept

[Matthew White]

Even though I am still new to python, I've recently had an insight as
to what makes OOP different from procedural programming.

Let's take perl for example.  A variable in perl is like a bowl.  It's an
empty vessel you can put things in.  You can change the contents of
the bowl, you can empty the bowl but it doesn't really *do* anything.
It has no real attributes aside from the fact that it's a container.

So when I create a variable in perl it looks like this:

$x = 'hello'

If I want to make the first letter of the value of $x a capital letter,
I have to use a function to do it:

$y = ucfirst($x)

now $y contains the value 'Hello'

In python one doesn't really create variables, one creates objects.
Sring objects, list objects, etc.  And objects are cool because they can
do things.  They are more than just merely bowls, they are like swiss
army knives.  So in python, if I say:

x = 'hello'

Then I can do all sorts of things with x:

x.capitalize()  - 'Hello'
x.swapcase() - 'HELLO'
x.count('l') - 2

This is just a very small example but I hope that my example can help
you understand what objects are what makes OOP different from procedural
programming.

-mtw

On Wed, Apr 19, 2006 at 06:07:27PM +0530, Kaushal Shriyan ([EMAIL PROTECTED]) 
wrote:
 Hi All
 
 I wanted to understand about OOPs Concept in Python in a easy way,
 Please explain me with an example
 
 I have been reading http://www.freenetpages.co.uk/hp/alan.gauld/tutclass.htm
 but at the moment still the concept is not clear
 
 Thanks in Advance
 
 Regards
 
 Kaushal
 ___
 Tutor maillist  -  Tutor@python.org
 http://mail.python.org/mailman/listinfo/tutor

-- 
Matthew White - District Systems Administrator
Tigard/Tualatin School District
503.431.4128

The greatest thing in this world is not so much where we are, but in
what direction we are moving.   -Oliver Wendell Holmes

___
Tutor maillist  -  Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor

Re: [Tutor] OOPs Concept

[Kaushal Shriyan]

On 4/19/06, Matthew White [EMAIL PROTECTED] wrote:
 Even though I am still new to python, I've recently had an insight as
 to what makes OOP different from procedural programming.

 Let's take perl for example.  A variable in perl is like a bowl.  It's an
 empty vessel you can put things in.  You can change the contents of
 the bowl, you can empty the bowl but it doesn't really *do* anything.
 It has no real attributes aside from the fact that it's a container.

 So when I create a variable in perl it looks like this:

 $x = 'hello'

 If I want to make the first letter of the value of $x a capital letter,
 I have to use a function to do it:

 $y = ucfirst($x)

 now $y contains the value 'Hello'

 In python one doesn't really create variables, one creates objects.
 Sring objects, list objects, etc.  And objects are cool because they can
 do things.  They are more than just merely bowls, they are like swiss
 army knives.  So in python, if I say:

 x = 'hello'

 Then I can do all sorts of things with x:

 x.capitalize()  - 'Hello'
 x.swapcase() - 'HELLO'
 x.count('l') - 2

 This is just a very small example but I hope that my example can help
 you understand what objects are what makes OOP different from procedural
 programming.

 -mtw

 On Wed, Apr 19, 2006 at 06:07:27PM +0530, Kaushal Shriyan ([EMAIL PROTECTED]) 
 wrote:
  Hi All
 
  I wanted to understand about OOPs Concept in Python in a easy way,
  Please explain me with an example
 
  I have been reading http://www.freenetpages.co.uk/hp/alan.gauld/tutclass.htm
  but at the moment still the concept is not clear
 
  Thanks in Advance
 
  Regards
 
  Kaushal
  ___
  Tutor maillist  -  Tutor@python.org
  http://mail.python.org/mailman/listinfo/tutor

 --
 Matthew White - District Systems Administrator
 Tigard/Tualatin School District
 503.431.4128

 The greatest thing in this world is not so much where we are, but in
 what direction we are moving.   -Oliver Wendell Holmes



Thanks Matthew
Just wanted to know
x.count('l') - 2 Here 2 means what I didnot understood this
and also does x is a object and capitalize(), swapcase()  and
count('l') are methods, is that correct what i understand

Awaiting your earnest reply

Regards

Kaushal
___
Tutor maillist  -  Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor