#!/usr/bin/python
# -*- Mode: Python -*-
# vi:si:et:sw=4:sts=4:ts=4

# this program loads 'file.py' and creates an instance of class 'Two'

def in_namespace(data):
    namespace = {}
    exec(data, globals(), namespace)
    klass = namespace.get('Two')
    atwo = klass()
    return atwo

def in_global(data):
    # create class by exec'ing in global namespace, making One available there
        exec(data, globals())
        atwo = Two()
        return atwo

file = 'file.py'

data = open(file).read()

print "using namespace method"
atwo = in_namespace(data)
print "an instance of Two: ", atwo
print "member 'one' of the instance: ", atwo.one

print "using global method"
atwo = in_global(data)
print "an instance of Two: ", atwo
print "member 'one' of the instance: ", atwo.one