nested threading

[Omer Ihsan]

is there anything as "nested threading"....that is, call a thread from
within a thread.
in this case how will thread locking take place.

for example initially there were two functions that were called using
threading.Thread. these wont get unlocked unless both of them are done
with whatever they need to do. if say function 2 calls another thread.
then what??

inquisitive....:-|