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John Henry
*nix forums beginner
Joined: 14 Jun 2005
Posts: 18
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 Posted: Tue Jul 18, 2006 9:58 pm Post subject:
Can thread start other threads?
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Can Python thread start threads? It appears not. When I do that, the
sub-threads gets to certain point and just sit there. If I run the
code serially and not run the sub-thread code as threads, everything is
fine.
I throught the problem is when you run multiple processes of Pythons... |
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Diez B. Roggisch
*nix forums Guru
Joined: 20 Feb 2005
Posts: 882
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| Posted: Tue Jul 18, 2006 10:33 pm Post subject:
Re: Can thread start other threads?
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John Henry schrieb:
| Quote: | Can Python thread start threads? It appears not. When I do that, the
sub-threads gets to certain point and just sit there. If I run the
code serially and not run the sub-thread code as threads, everything is
fine.
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It can.
import threading, time
class Test(threading.Thread):
def __init__(self, num):
threading.Thread.__init__(self)
self._num = num
self.setDaemon(True)
self.start()
def run(self):
if self._num > 0:
t = Test(self._num - 1)
while True:
time.sleep(.2)
print "T_%i" % self._num
t = Test(4)
while True:
time.sleep(2.0)
| Quote: | I throught the problem is when you run multiple processes of Pythons...
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No.
Whatever you do, it must be the cause. Without code - nobody can tell
you why.
Diez |
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John Henry
*nix forums beginner
Joined: 14 Jun 2005
Posts: 18
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| Posted: Tue Jul 18, 2006 11:00 pm Post subject:
Re: Can thread start other threads?
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Thanks for the confirmation.
I will see if I can reduce the code down to something managable and
post the failing code.
Diez B. Roggisch wrote:
| Quote: | John Henry schrieb:
Can Python thread start threads? It appears not. When I do that, the
sub-threads gets to certain point and just sit there. If I run the
code serially and not run the sub-thread code as threads, everything is
fine.
It can.
import threading, time
class Test(threading.Thread):
def __init__(self, num):
threading.Thread.__init__(self)
self._num = num
self.setDaemon(True)
self.start()
def run(self):
if self._num > 0:
t = Test(self._num - 1)
while True:
time.sleep(.2)
print "T_%i" % self._num
t = Test(4)
while True:
time.sleep(2.0)
I throught the problem is when you run multiple processes of Pythons...
No.
Whatever you do, it must be the cause. Without code - nobody can tell
you why.
Diez |
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