[EMAIL PROTECTED] > def f() > i = 0 > while True: > yield i > i += 1 > g=f() > > If I pass g around to various threads and I want them to always be > yielded a unique value, will I have a race condition?
Yes. Generators can be shared between threads, but they cannot be resumed from two threads at the same time. You should wrap it in a lock to ensure that only one thread at a time can resume the generator. Read this thread from a couple of years back about the same topic. Suggested generator to add to threading module. http://groups.google.com/group/comp.lang.python/browse_frm/thread/76aa2afa913fe4df/a2ede21f7dd78f34#a2ede21f7dd78f34 Also contained in that thread is an implementation of Queue.Queue which supplies values from a generator, and which does not require a separate thread to generate values. HTH, -- alan kennedy ------------------------------------------------------ email alan: http://xhaus.com/contact/alan -- http://mail.python.org/mailman/listinfo/python-list
