SimpleJSONRPCServer.py: fix logging

[FATruden]

server's code:

from jsonrpclib.SimpleJSONRPCServer import PooledJSONRPCServer
from jsonrpclib.threadpool import ThreadPool
...
...
pool = ThreadPool(max_threads=50, min_threads=10)
pool.start()
server = PooledJSONRPCServer((IP, PORT), thread_pool=pool)

# All rigistred methods
server.register_function(foo)
...

When i call (on client side) unregistered method, i see in server logs:

Oct 03 12:04:52 dc01.dc.int.c2.croc.ru python[22924]: No handlers could be found for logger "jsonrpclib.SimpleJSONRPCServer"
Oct 03 12:04:52 dc01.dc.int.c2.croc.ru python[22924]: 172.20.36.102 - - [03/Oct/2019 12:04:52] "POST / HTTP/1.1" 200 -

after this fix, logging works correctly:

Oct 03 12:14:59 dc01.dc.int.c2.croc.ru python[25408]: WARNING:jsonrpclib.SimpleJSONRPCServer:Unknown method: <Fault -32601: Method test not supported.>
Oct 03 12:14:59 dc01.dc.int.c2.croc.ru python[25408]: 172.20.36.102 - - [03/Oct/2019 12:14:59] "POST / HTTP/1.1" 200 -
...
Oct 03 12:18:03 dc01.dc.int.c2.croc.ru python[25408]: WARNING:jsonrpclib.SimpleJSONRPCServer:Invalid call parameters: <Fault -32602: Invalid parameters: update() takes no arguments (1 given)>
Oct 03 12:18:03 dc01.dc.int.c2.croc.ru python[25408]: 172.20.36.102 - - [03/Oct/2019 12:18:03] "POST / HTTP/1.1" 200 -

[coveralls]

Coverage decreased (-2.4%) to 81.557% when pulling 033a33a on FATruden:logging_fix into fe9fcf2 on tcalmant:master.

[coveralls]

Coverage decreased (-1.6%) to 82.346% when pulling dcdbf59 on FATruden:logging_fix into fe9fcf2 on tcalmant:master.

[tcalmant]

Hi,
I'm not sure the logger configuration should be set by the library itself.
It is intended to use the logging configuration set by the developer using the library, at the beginning of the software.

[FATruden]

Hi, i agree with you and i put logging.basicConfig() before creating server object and it works fine.
But it's a little misleading. You use logging in our code but it is not working without logging configuration. May be you should add this to README.

[tcalmant]

You're right, I'll add it to the README file

[FATruden]

Thank you!