As Simple As Possible?

[jitya]

 Chuck Allison says:

After three years of study, I have concluded that Python is about
as simple as a full-powered object-oriented language can get. My inner
programmer just loves it. In a recent interview Scott Meyers was asked
which language he thought would be ideal for introducing programming to
novices. He replied:

"... a first language should foster a feeling of power and
accomplishment out of the box - it should get people excited about
the limitless things that can be accomplished in software. Among other
things, such a language would offer an extensive and powerful
library..." [1]

I know of no language to which these words apply more than Python.



LINK:  http://www.artima.com/cppsource/simple.html

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Re: Inheritance problem ?

[jitya]

tooper wrote:
> Hello all,
>
> I'm trying to implement a common behavior for some object that can be
> read from a DB or (when out of network) from an XML extract of this DB.
> I've then wrote 2 classes, one reading from XML & the other from the
> DB, both inheritating from a common one where I want to implement
> several common methods.
> Doing this, I've come to some behaviour I can't explain to myself,
> which I've reproduced in the example bellow :
>
> -
>
> class myfather:
>   def __repr__(self):
>   return "\t a="+self.a+"\n\t b="+self.b
>
> class mychilda(myfather):
>   def __init__(self,a):
>   self.a= a
>   def __getattr__(self,name):
>   return "Undefined for mychilda"
>
> class mychildb(myfather):
>   def __init__(self,b):
>   self.b= b
>   def __getattr__(self,name):
>   return "Undefined for mychildb"
>
> a= mychilda("a")
> b= mychildb("b")
>
> print "a:\n"+str(a)
> print "b:\n"+str(b)
>
> -
>
> I was expecting to get :
>
> a:
>a= a
>b= Undefined for mychilda
> b:
>a= Undefined for mychildb
>b= b
>
> but I get the following error :
>
> File "/home/thierry/mytest.py", line 20, in ?
> print "a:\n"+str(a)
> TypeError: 'str' object is not callable
>
> Could someone explain me what I missed ?
>
> Thanks in advance !

hi I am got python 2.4 and changed "class myfather"
to new style classes "class myfather(object)" it worked.
here is the output :

a:
 a=a
 b=Undefined for mychilda
b:
 a=Undefined for mychildb
 b=b
 
But i myself still need explaination ;)

regards
jitu

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Re: Inheritance problem ?

[jitya]

The stuff on Descriptor.htm was really good . 

 Thanks

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Re: Programming newbie coming from Ruby: a few Python questions

[jitya]

[EMAIL PROTECTED] wrote:

> Hi all. I've been try to learn ruby for a few months but I'm about
> ready to give up.

Perfection is achieved only on the point of collapse. -- C.N. Parkinson


Welcome to Python , apart from the tutorials whenever time permits do
read this articles .

Why Python :http://www.linuxjournal.com/article/3882
The Python Paradox :http://www.paulgraham.com/pypar.html
Why I Promote Python : http://www.prescod.net/python/why.html

Regards
Jitendra Nair
Ensim India Pvt Ltd ,
Pune , India



 The available books either assume a programming
> background, or are out of date. Anyway, I think python may suit me more
> due to its 'theres one way to do it' philosophy (hope the quote is
> right)! Another quote that I liked was:
>
>  'Clever is not considered a compliment in Python.' (don't know where I
> read that...)
>
> In Ruby, there are many ways to do the same thing and cleverness seems
> to be held in high regard. These attitudes are not too helpful for
> beginners in my experience. Anyway, enough waffle.
>
> What books and tutorials are recommended to learn Python? The tutorial
> that comes with Python is great and has given me a good overview but I
> think I'd benefit from some programming projects, now I have a little
> understanding of how Python works.
>
> Ideally, I'd like a whole series of projects where I'm walked through
> how to go about writing real Python. The way I look at it, nobody
> learnt to build a house just from reading about building materials!
>
> Any other tips for getting up to speed with Python fairly quickly will
> be greatly appreciated.
> 
> If anyone can help, thanks very much

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