Lisp mentality vs. Python mentality

[Paul Rubin]

Carl Banks <pavlovevidence at gmail.com> writes:
> Which is "communicating with the rest of the program periodically".
> 
> Presumably you have to protect objects to share them?  There you go:
> anytime you try to acquire a lock have the thread check to see whether
> to abort.

Normally, acquiring a lock doesn't require running code in other
threads, at least in the uncontended case.  If you have to switch
threads twice in order to acquire a lock, your implementation could
use some improvement.