Refactor TFW logging

solvable/src/pipe_io_main.py

@@ -1,11 +1,13 @@
 import logging
+from sys import stderr
 from signal import signal, SIGTERM, SIGINT
 
 from tornado.ioloop import IOLoop
 
 from tfw.event_handlers import EventHandlerBase
 from tfw.builtins import PipeIOEventHandler
-from tfw.config.log import TFWLog
+from tfw.config import TFWENV
+from tfw.logging import Log, Logger, LogFormatter, VerboseLogFormatter
 
 from pipe_io_auxlib import (
         SignMessagePipeIOEventHandler, VerifyMessagePipeIOEventHandler,
@@ -18,8 +20,11 @@ LOG = logging.getLogger(__name__)
 
 
 if __name__ == '__main__':
-    # pylint: disable=pointless-string-statement
-    TFWLog().start()
+    Logger([
+        Log(stderr, LogFormatter(20)),
+        Log(TFWENV.LOGFILE, VerboseLogFormatter())
+    ]).start()
+
     """
     Creates general purpose pipes.
     The first parameter associates the receiving pipe with a key, which is