Hide logging messages upon connection?

[DominiqueMakowski]

I am using muse-lsl with the bleak backend, and upon connection it prints the following in the console:

2023-09-19 21:50:06.199 (   0.099s) [        2168740B]      netinterfaces.cpp:36    INFO| netif '{043C3089-C464-4253-ACA9-4FA88CD26523}' (status: 2, multicast: 1
2023-09-19 21:50:06.200 (   0.099s) [        2168740B]      netinterfaces.cpp:36    INFO| netif '{215C99E1-3713-40EA-8003-9CE3A534CF64}' (status: 2, multicast: 1
2023-09-19 21:50:06.200 (   0.100s) [        2168740B]      netinterfaces.cpp:36    INFO| netif '{1C4FC76D-FB8B-4BEC-8B59-05B479150EC8}' (status: 2, multicast: 1
2023-09-19 21:50:06.200 (   0.100s) [        2168740B]      netinterfaces.cpp:36    INFO| netif '{DA5DAC6E-EF19-471D-9DE8-1009F16CD5C7}' (status: 2, multicast: 1
2023-09-19 21:50:06.200 (   0.100s) [        2168740B]      netinterfaces.cpp:36    INFO| netif '{7265CF91-722A-4D26-94D5-FC1E599DBB4D}' (status: 1, multicast: 1
2023-09-19 21:50:06.200 (   0.100s) [        2168740B]      netinterfaces.cpp:58    INFO|       IPv6 ifindex 12
2023-09-19 21:50:06.200 (   0.100s) [        2168740B]      netinterfaces.cpp:36    INFO| netif '{96853D38-39B1-48D1-90E9-74018B4A39EE}' (status: 2, multicast: 1
2023-09-19 21:50:06.200 (   0.100s) [        2168740B]      netinterfaces.cpp:36    INFO| netif '{F9A705F0-0694-11EC-B500-806E6F6E6963}' (status: 1, multicast: 1
2023-09-19 21:50:06.200 (   0.100s) [        2168740B]      netinterfaces.cpp:58    INFO|       IPv6 ifindex 1
2023-09-19 21:50:06.200 (   0.100s) [        2168740B]         api_config.cpp:270   INFO| Loaded default config
2023-09-19 21:50:06.200 (   0.100s) [        2168740B]             common.cpp:65    INFO| git:6dc417089a1f73f26589b4f1e64def357b183e9c/branch:refs/tags/v1.16.1/build:Release/compiler:MSVC-19.0.24245.0/link:SHARED
2023-09-19 21:50:06.201 (   0.101s) [        2168740B]         udp_server.cpp:82    WARN| Could not bind multicast responder for ff02:113d:6fdd:2c17:a643:ffe2:1bd1:3cd2 to interface ::1 (An invalid argument was supplied.)
2023-09-19 21:50:06.201 (   0.101s) [        2168740B]         udp_server.cpp:82    WARN| Could not bind multicast responder for ff05:113d:6fdd:2c17:a643:ffe2:1bd1:3cd2 to interface ::1 (An invalid argument was supplied.)
2023-09-19 21:50:06.204 (   0.104s) [        2168740B]         udp_server.cpp:82    WARN| Could not bind multicast responder for ff02:113d:6fdd:2c17:a643:ffe2:1bd1:3cd2 to interface ::1 (An invalid argument was supplied.)
2023-09-19 21:50:06.204 (   0.104s) [        2168740B]         udp_server.cpp:82    WARN| Could not bind multicast responder for ff05:113d:6fdd:2c17:a643:ffe2:1bd1:3cd2 to interface ::1 (An invalid argument was supplied.)

Is it possible to add an argument to the bleak backend to hide that? Thanks!

[dlech]

This doesn't look like any logs that come from Bleak.

[megholm]

@DominiqueMakowski , these come from the LSL library
Nevertheless, did you ever find a way to filter them away? (I have the same request)

[DominiqueMakowski]

no :/

[megholm]

Bummer.
I've briefly glanced around in liblsl, and it seems the logging in there is agnostic of the Python logging module.
Our best chance is to configure liblsl in a separate file - see:
https://labstreaminglayer.readthedocs.io/info/lslapicfg.html#logging

[megholm]

Just to follow up on this non-Bleak related topic:
I just added the following code to my main-file:

    # Setup the LSL-API configuration file to get rid of the warning messages about IPv6.
    # Place a file named "lsl_api.cfg" in the same folder as this file with the content:
    # [ports]
    # IPv6 = disable
    cfgFile = os.path.join(os.path.dirname(__file__), 'lsl_api.cfg')
    os.environ['LSLAPICFG'] = cfgFile 

As described in the beforementioned link, this will make the LSL-API look for a configuration file in the same path as the python-file containing this code.

This is nice if e.g. using Python's "zipapp"/shiv (PEP 441).

And then create the configuration file, lsl_api.cfg:

[ports]
IPv6 = disable

[log]
level = -1

No more yellow warnings (and with the level=-1, no more info-messages).