Question

Possible Duplicate:
Dynamic loading of python modules
python: How to add property to a class dynamically?

I have a dictionary with the filename and class names how can I import this class names and how can I create this classes?

Example:

classNames = { 'MCTest':MCTestClass}

I want to import the MCTest and create the MCTestClass.

Answer 1

You have to use the __import__ function:

http://docs.python.org/library/functions.html#import

Example from doc page:

>>> import sys
>>> name = 'foo.bar.baz'
>>> __import__(name)
<module 'foo' from ...>
>>> baz = sys.modules[name]
>>> baz
<module 'foo.bar.baz' from ...>

To instantiate a class from baz you should be able to do:

>>> SomeClass = getattr(baz, 'SomeClass')
>>> obj = SomeClass()