[Twisted-Python] catching adbapi 'thread' failures
Clark C. Evans
cce at clarkevans.com
Wed Aug 18 22:48:24 EDT 2004
Howdy. I'm stumped. I thought I knew how failures work, but I
can't seem to stop a traceback from appearing with the following:
from twisted.internet import reactor
from twisted.python.util import println
from twisted.enterprise import adbapi
dbpool = adbapi.ConnectionPool('pyPgSQL.PgSQL', database='testing')
def interaction(trans):
trans.execute('sqlerror')
return trans.fetchall()[0][0]
def catch(failure):
return "***" + failure.getErrorMessage().strip() + "***"
def use_pool():
d = dbpool.runInteraction(interaction)
d.addErrback(catch)
d.addCallback(println)
d.addCallback(lambda _: reactor.stop())
reactor.callLater(0, use_pool)
reactor.run()
Any help would be wonderful,
Clark
--
Clark C. Evans Prometheus Research, LLC.
http://www.prometheusresearch.com/
o office: +1.203.777.2550
~/ , mobile: +1.203.444.0557
//
(( Prometheus Research: Turning Data Into Knowledge
\\ ,
\/ - Research Exchange Database
/\ - Survey & Assessment Technologies
` \ - Software Tools for Researchers
~ *
More information about the Twisted-Python
mailing list