dynamic class/module use? (like Java's forName)

[Alex Hunsley]

Robert Brewer wrote:

> Alex Hunsley wrote:
> 
>>>Does python provide a way to dynamically use modules and/or classes?
>>>I'm thinking in the vein of Java's Class.forName.
>>>
>>>As a pseudocode example, I'm looking for the following ability:
>>>
>>>
>>>classIWantToInstantiate = "packagenamehere.classNameHere"
>>>
>>>anInstanceOfThatClass = 
>>
>>makeNewClassFromString(classIWantToInstantiate, 
>>
>>>parameters[])
>>>
>>># now anInstanceOfThatClass refers to an instantied
>>># packagenamehere.classNameHere object!
>>>
>>
>>Oops.. I googled but not hard enough obviously! I found my answer on 
>>google groups:
>>
>>http://shorterlink.com/?N2HPGU
> 
> 
> I have a more complete version of this functionality available:
> 
> http://www.aminus.org/rbre/python/xray.py
> 
> Feel free to drop it in your site-packages directory. :)
> 
> 
> Robert Brewer
> MIS
> Amor Ministries
> fumanchu at amor.org


ah, thanks! looks like it could be handy!

Your source code comment has hit the nail on the head - I am looking at 
doing the strategy pattern in a modular way. (Where each 'action' in my 
project is some code that matches a given interfaces).

I'm working on a GPL licensed project, not sure what licensing your 
above code is based on.

ta,
alex