alex@alex:~$ python
Python 2.7.1+ (r271:86832, Apr 11 2011, 18:13:53)
[GCC 4.5.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from threading import Thread
>>> class SomeClass:
...     def somemethod(self):
...         print "hi"
...
>>> someclass = SomeClass()
>>> Thread(target=someclass.somemethod, args=[]).start()
hi
>>> Thread(target=SomeClass.somemethod, args=[someclass]).start()
hi