ASPN ActiveState Programmer Network
ActiveState
/ Home / Perl / PHP / Python / Tcl / XSLT /
/ Safari / My ASPN /
Cookbooks | Documentation | Mailing Lists | Modules | News Feeds | Products | User Groups


Recent Messages
List Archives
About the List
List Leaders
Subscription Options

View Subscriptions
Help

View by Topic
ActiveState
.NET Framework
Open Source
Perl
PHP
Python
Tcl
Web Services
XML & XSLT

View by Category
Database
General
SOAP
System Administration
Tools
User Interfaces
Web Programming
XML Programming


MyASPN >> Mail Archive >> python-Tutor
python-Tutor
Re: [Tutor] Some advice on classes needed ?
by Dave S other posts by this author
May 15 2004 2:12PM messages near this date
Re: [Tutor] Some advice on classes needed ? | Re: [boost] Re: [Boost.Thread] mutex Win32 implementation changes
Alan Gauld wrote:

> >If I design a class for one set of data, how do I generate all the
> >instances of classes without 250 generate instances.
> >
> >data1=datastruct()
> >data2=datastruct()
> >...
> >data250=datastruct()
> >
> >What I am asking is, Is it possible to use a for loop ? ie dynamicly
> >generate an instance name to then call ?
> >    
> >
> 
> You don't need an instance name, you can store them ina list
> orvdictionary.
> There is a section at the end of my web tutor topic on OOP that shows
> how to do this.
>   
> 
.... can you tell me where I can read this "web tutor topic" ... I think 
I would find it helpfull

Thanks
Dave

> One thing to consider however is your design, remember that objects
> own their own dsata arnd are responsible for processing it, so think
> carefully about how that concept might change the basic way your
> program functions. Are you going to pass a set of files to each
> object to extract its own data? Or are you going to going to pass
> each file in turn to each of the objects? Or are you going to
> extract the data in bulk and then pass it to the object (so how do
> you know what data each object needs if the object manages its own
> data?)
> 
> Without knowing more about the details its impossible to say which
> mechanism will work best. But large volume data cruunching can be
> extremely inefficient if you get the approach wrong.
> 
> Alan G.
> 
> 
> 
>   
> 


_______________________________________________
Tutor maillist  -  Tutor@[...].org
http://mail.python.org/mailman/listinfo/tutor
Thread:
Dave S
Glen Wheeler
Dave S
Alan Gauld
Dave S

Privacy Policy | Email Opt-out | Feedback | Syndication
© ActiveState Software Inc. All rights reserved