Ervin Hegedüs wrote: > Hi Peter, > > thanks for the reply, > > On Thu, Sep 11, 2014 at 09:48:18PM +0200, Peter Otten wrote: >> Ervin Hegedüs wrote: >> >> > Exception in thread Thread-82: >> > ... >> > My question is: how much thread ID could be totally? Is there any >> > maximum number? And if the thread reached that, what will be >> > done? Overlflowed? Couting from 0 again? >> >> A quick peak into threading.py reveals >> >> # Helper to generate new thread names >> _counter = 0 >> def _newname(template="Thread-%d"): >> global _counter >> _counter += 1 >> return template % _counter >> >> class Thread: >> ... >> def __init__(self, group=None, target=None, name=None, >> args=(), kwargs=None, *, daemon=None): >> ... >> self._name = str(name or _newname()) >> >> >> There is no upper limit to the thread name other than that you will >> eventually run out of memory ;) > > thanks - I hope that the memory will not run out by these > threads... :) > > Anyway, that means, on my system: > >>>> import sys >>>> print sys.maxint > 9223372036854775807 > > the couter could be 9223372036854775807? > > And after? :)
Try it! >>> print sys.maxint + 1 9223372036854775808 When you start one thread per second >>> sys.maxint / (60*60 * 24 * 365.25) 292271023045.3132 after less than 300 billion years the only thing that will change is the type: >>> type(sys.maxint) <type 'int'> >>> type(sys.maxint + 1) <type 'long'> -- https://mail.python.org/mailman/listinfo/python-list
