1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
# Invoke this script with:
# $ twistd -ny twistd-logging.tac
# It will create a log file named "twistd-logging.log". The log file will
# be formatted such that each line contains the representation of the dict
# structure of each log message.
from twisted.application.service import Application
from twisted.internet.task import LoopingCall
from twisted.python.log import ILogObserver, msg
from twisted.python.util import untilConcludes
logfile = open("twistd-logging.log", "a")
def log(eventDict):
# untilConcludes is necessary to retry the operation when the system call
# has been interrupted.
untilConcludes(logfile.write, f"Got a log! {eventDict}\n")
untilConcludes(logfile.flush)
def logSomething():
msg("A log message")
LoopingCall(logSomething).start(1)
application = Application("twistd-logging")
application.setComponent(ILogObserver, log)
|
