trac can not send notifications

[tracktor]

I use Python 2.4.3

Trac[web_ui] ERROR: Failure sending notification on change to ticket #10: unable to select on socket
Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/trac/ticket/web_ui.py", line 562, in _do_save
    tn.notify(ticket, newticket=False, modtime=now)
  File "/usr/lib/python2.4/site-packages/trac/ticket/notification.py", line 129, in notify
    NotifyEmail.notify(self, ticket.id, subject)
  File "/usr/lib/python2.4/site-packages/trac/notification.py", line 216, in notify
    Notify.notify(self, resid)
  File "/usr/lib/python2.4/site-packages/trac/notification.py", line 114, in notify
    self.begin_send()
  File "/usr/lib/python2.4/site-packages/trac/notification.py", line 278, in begin_send
    self.server = smtplib.SMTP(self.smtp_server, self.smtp_port)
  File "/usr/lib64/python2.4/smtplib.py", line 244, in __init__
    (code, msg) = self.connect(host, port)
  File "/usr/lib64/python2.4/smtplib.py", line 307, in connect
    (code, msg) = self.getreply()
  File "/usr/lib64/python2.4/smtplib.py", line 348, in getreply
    line = self.file.readline()
  File "/usr/lib64/python2.4/socket.py", line 340, in readline
    data = self._sock.recv(self._rbufsize)
error: unable to select on socket

[Christian Boos]

See ​http://jcalderone.livejournal.com/2006/05/26/ and ​PythonBug:1494314. You should upgrade to Python 2.4.4, at least.