Question

i’m calling a twisted python program as such:

twistd -l twisted.log -y controller.py

based on all the documentation i’ve read:

• l should direct the output from STDERR to the logfile
• y should daemonize this , and give me a shell prompt

instead:

• the log file is untouched
• all the debug stuff goes to stderr ( from ‘import logging’ )
• the app doesn’t daemonize ( so i have to stay logged in )

can someone please point me in the right direction ? thanks.

---

edit:

the tac contains this:

from twisted.internet import protocol, reactor  
from twisted.application import service  

application = service.Application('myapp daemon')  

dbUpdateService= DbUpdater_UpdateService()  
dbUpdateService.setServiceParent(application)  
dbUpdateService.startService()  

# repeat with 3x services  

reactor.run()

Answer 1

It doesn’t look like you’re using twistd right.

1. The -y option reads a .tac file, not a .py file. Technically a .tac is Python source code too, but it has a few additional rules and it isn’t supposed to be a module. There’s some explanation here.
2. The -l option sends output from twisted.python.log, not logging.
3. Your app probably isn’t daemonizing because you’re doing random crud in controller.py that you’re not supposed to (that file is executed before daemonization), but you didn’t attach controller.py so really I have no idea.

Please ask questions with more detail about what you’re actually doing in the future. Without any of the code to your application, the above is mostly guesses.