import modules at runtime

[Robert Cragie]

This was in a post dated 31/03/00. This works fine for a class which has the
same name as the module.

######### in module MyClass.py #########
class MyClass:
    def __init__(self, data):
        print data
####################################

class ArbitraryClass:
    def getClass(self, cmName):
        return __import__(cmName, {}, {}, [])

    def newInstance(self, cmName, *args, **kwargs):
        return apply (getattr(self.getClass(cmName), cmName), args, kwargs)

if __name__ == '__main__':
    arbitrary = ArbitraryClass()
    target = 'MyClass'
    arg1 = 'Hello world'
    instance = arbitrary.newInstance(target, arg1)

<martin_valiente at my-deja.com> wrote in message
news:8f6jd5$7mg$1 at nnrp1.deja.com...
| Hi *
|
| Is there a way to create an  object instance giving its classname at
| runtime?
|
| In java you can say:
|
| ...
| Class c = Class.forName(stringWithTheNameOfTheClass);
| Object o = c.newInstance():
| ...
|
| Thanks in advance
| M.
|
|
| Sent via Deja.com http://www.deja.com/
| Before you buy.