# Python : creating an instance of a class from list of 'em.
#          
 
class Foo:
  def bar(self):
    print "Foo.bar"

class Baz:
  def bar(self):
    print "Baz.bar"


# First approach: just put the classes themselves in the list.
classes = [Foo, Baz, Baz]
for class in classes:
  instance = class()

# Second approach: use the "eval" function on a string like "Foo()"
class_names = ['Foo', 'Baz', 'Baz']
for class_name in class_names:
  instance = eval(class_name + "()")

# Third approach: use the locals() or globals() functions 
# to get a dictionary mapping of names -> things.
#   dict  = locals()
#   class = dict[class_name]
#   instance = class()
class_names = ['Foo', 'Baz', 'Baz']
for class_name in class_names:
  instance = locals()[class_name]()