Threads in Python version 1.5, thread doesn't start until calling process dies

[Bill Bell]

kentabacchi at excite.com (Ken Tabacchi)	 wrote, in part:
> I am having some trouble with a threadded process in Python version
> 1.5.  It seems that the thread does not start until the calling
> process has died.  The thread starts immediately when the following
> program is run under Python version 2.1.

Interesting one (for me, anyways).

Please forgive my ignorance: would I be correct to surmise that 1.5 
lacks 'threading' and locks?