4.0.4 - On Glances startup "ERROR -- Can not init battery class ([WinError 3]" even though sensors plugin disabled

[AnthonyBe]

Describe the bug
On Glances 4.0.4 start-up, and the following error is logged:
ERROR -- Can not init battery class ([WinError 3] The system cannot find the path specified: '/sys/class/power_supply')
even though the containers plugin is disabled.
Glances continues to run without issue so low priority issue. It just seems odd that with the sensors plugin disabled, it is obviously still trying to load something?

To Reproduce
Steps to reproduce the behavior:

1. Start Glances with the following options glances -w --fs-free-space --enable-process-extended --config %APPDATA%\glances\glances.conf
2. glances.conf contains:

[sensors]
disable=True

4. The error is logged on start-up only.

2024-05-16 13:54:16,477 -- WARNING -- PsUtil can not grab processes gids ('Process' object has no attribute 'gids')
2024-05-16 13:54:16,477 -- INFO -- Start Glances 4.0.4
2024-05-16 13:54:16,493 -- INFO -- CPython 3.12.3 (C:\Python312\python.exe) and psutil 5.9.8 detected
2024-05-16 13:54:16,524 -- INFO -- Read configuration file 'C:\Users\Administrator\AppData\Roaming\glances\glances.conf'
2024-05-16 13:54:19,146 -- INFO -- Start GlancesWebServer mode
2024-05-16 13:54:20,292 -- ERROR -- containers (Docker) plugin - Can't connect to Docker (Error while fetching server API version: (2, 'CreateFile', 'The system cannot find the file specified.'))
2024-05-16 13:54:20,481 -- ERROR -- Can not init battery class ([WinError 3] The system cannot find the path specified: '/sys/class/power_supply')
2024-05-16 13:54:24,329 -- INFO -- Glances RESTful API Server started on http://0.0.0.0:61208/api/4
2024-05-16 13:54:24,329 -- INFO -- Get WebUI in C:\Python312\Lib\site-packages\glances\outputs\static/public
2024-05-16 13:54:24,329 -- INFO -- Glances Web User Interface started on http://0.0.0.0:61208/

Expected behavior
no sensors code loading and therefore no error logged

Screenshots
If applicable, add screenshots to help explain your problem.

Environment (please complete the following information)

• Operating System (lsb_release -a or OS name/version): Windows Server 2016
• Glances & psutil versions: Glances version: 4.0.4, PsUtil version: 5.9.8
• How do you install Glances (Pypi package, script, package manager, source): Pypi package
• Glances test (only available with Glances 3.1.7 or higher):

To be completed with result of: glances --issue
C:\WINDOWS\system32>glances --issue
===============================================================================
Glances �[94m4.0.4�[0m (C:\Python312\Lib\site-packages\glances\__init__.py)
Python �[94m3.12.3�[0m (C:\Python312\python.exe)
PsUtil �[94m5.9.8�[0m (C:\Python312\Lib\site-packages\psutil\__init__.py)
===============================================================================
�[94malert         �[92m[OK]   �[94m 0.00000s
�[0m[]�[0m
�[94mamps          �[92m[OK]   �[94m 0.00000s �[93mkey=name �[0m
[{'count': 0,
 'countmax': None,
 'countmin': 1.0,
 'key': 'name',
 'name': 'Dropbox',
 'refresh': 3.0,
 'regex': True,
 'result': None,
 'timer': 5.043111801147461}, ...]�[0m
�[94mcloud�[0m         [NA]�[0m�[0m
�[94mconnections�[0m   [NA]�[0m�[0m
�[94mcontainers�[0m    [NA]�[0m�[0m
�[94mcore          �[92m[OK]   �[94m 0.00000s
�[0m{'log': 2, 'phys': 2}�[0m
�[94mcpu           �[92m[OK]   �[94m 0.00000s
�[0m{'cpucore': 2,
'ctx_switches': 3188,
'ctx_switches_gauge': 9947357,
'ctx_switches_rate_per_sec': 1577.0,
'dpc': 0.0,
'idle': 97.7,
'interrupts': 3055,
'interrupts_gauge': 10091286,
'interrupts_rate_per_sec': 1511.0,
'soft_interrupts': 0,
'soft_interrupts_gauge': 0,
'soft_interrupts_rate_per_sec': 0.0,
'syscalls': 8936,
'syscalls_gauge': 73725888,
'syscalls_rate_per_sec': 4421.0,
'system': 0.8,
'time_since_update': 2.021165370941162,
'total': 30.3,
'user': 1.6}�[0m
�[94mdiskio        �[92m[OK]   �[94m 0.00000s �[93mkey=disk_name �[0m
[{'disk_name': 'PhysicalDrive0',
 'key': 'disk_name',
 'read_bytes': 692224,
 'read_bytes_gauge': 7445936128,
 'read_bytes_rate_per_sec': 342487.0,
 'read_count': 139,
 'read_count_gauge': 288206,
 'read_count_rate_per_sec': 68.0,
 'time_since_update': 2.021165370941162,
 'write_bytes': 1449984,
 'write_bytes_gauge': 6838657536,
 'write_bytes_rate_per_sec': 717399.0,
 'write_count': 178,
 'write_count_gauge': 470832,
 'write_count_rate_per_sec': 88.0}, ...]�[0m
�[94mfolders�[0m       [NA]�[0m�[0m
�[94mfs            �[92m[OK]   �[94m 0.01559s �[93mkey=mnt_point �[0m
[{'device_name': 'C:\\',
 'free': 213466804224,
 'fs_type': 'NTFS',
 'key': 'mnt_point',
 'mnt_point': 'C:\\',
 'percent': 61.1,
 'size': 549048020992,
 'used': 335581216768}, ...]�[0m
�[94mgpu�[0m           [NA]�[0m�[0m
�[94mhelp          �[92m[OK]   �[94m 0.00000s
�[0mNone�[0m
�[94mip            �[92m[OK]   �[94m 2.03416s
�[0m{'address': '***', 'gateway': '***', 'mask': '***', 'mask_cidr': '***'}�[0m
�[94mirq�[0m           [NA]�[0m�[0m
�[94mload          �[92m[OK]   �[94m 0.00000s
�[0m{'cpucore': 2, 'min1': 0.08, 'min15': 0.01, 'min5': 0.02}�[0m
�[94mmem           �[92m[OK]   �[94m 0.00000s
�[0m{'available': 7180079104, 'free': 7180079104, 'percent': 58.1, 'total': 17143681024, 'used': 9963601920}�[0m
�[94mmemswap       �[92m[OK]   �[94m 0.00000s
�[0m{'free': 2296844288,
'percent': 9.9,
'sin': 0,
'sout': 0,
'time_since_update': 5.98190450668335,
'total': 2550136832,
'used': 253292544}�[0m
�[94mnetwork       �[92m[OK]   �[94m 0.01563s �[93mkey=interface_name �[0m
[{'alias': None,
 'bytes_all': 0,
 'bytes_all_gauge': 0,
 'bytes_all_rate_per_sec': 0.0,
 'bytes_recv': 0,
 'bytes_recv_gauge': 0,
 'bytes_recv_rate_per_sec': 0.0,
 'bytes_sent': 0,
 'bytes_sent_gauge': 0,
 'bytes_sent_rate_per_sec': 0.0,
 'interface_name': 'Ethernet 2',
 'key': 'interface_name',
 'speed': 0,
 'time_since_update': 4.07091760635376}, ...]�[0m
�[94mnow           �[92m[OK]   �[94m 0.00000s
�[0m{'custom': '2024-05-16 14:02:46 +1000', 'iso': '2024-05-16T14:02:46+10:00'}�[0m
�[94mpercpu        �[92m[OK]   �[94m 0.00000s �[93mkey=cpu_number �[0m
[{'cpu_number': 0, 'idle': 63.1, 'key': 'cpu_number', 'system': 8.4, 'total': 36.9, 'user': 26.7}, ...]�[0m
�[94mports         �[92m[OK]   �[94m 0.00000s �[93mkey=indice �[0m
[{'description': 'DefaultGateway',
 'host': '192.168.0.1',
 'indice': 'port_0',
 'key': 'indice',
 'port': 0,
 'refresh': 30,
 'rtt_warning': None,
 'status': 0.126356,
 'timeout': 3}, ...]�[0m
�[94mprocesscount  �[92m[OK]   �[94m 0.12500s
�[0m{'pid_max': 0, 'running': 83, 'sleeping': 0, 'thread': 1013, 'total': 85}�[0m
�[94mprocesslist   �[92m[OK]   �[94m 0.00000s
�[0m[]�[0m
�[94mpsutilversion �[92m[OK]   �[94m 0.00000s
�[0m'5.9.8'�[0m
�[94mquicklook     �[92m[OK]   �[94m 0.00000s
�[0m{'cpu': 30.3,
'cpu_hz': 2500000000.0,
'cpu_hz_current': 2125000000.0,
'cpu_log_core': 2,
'cpu_name': 'CPU',
'cpu_phys_core': 2,
'load': 0.5,
'mem': 58.1,
'percpu': [{...}, {...}],
'swap': 9.9}�[0m
�[94mraid�[0m          [NA]�[0m�[0m
�[94msensors�[0m       [NA]�[0m�[0m
�[94msmart�[0m         [NA]�[0m�[0m
�[94msystem        �[92m[OK]   �[94m 0.00000s
�[0m{'hostname': 'ANTMICROSERVER',
'hr_name': 'Windows 2016Server SP0 64bit',
'os_name': 'Windows',
'os_version': '2016Server SP0',
'platform': '64bit'}�[0m
�[94muptime        �[92m[OK]   �[94m 0.00000s
�[0m{'seconds': 6831}�[0m
�[94mversion       �[92m[OK]   �[94m 0.00000s
�[0m'4.0.4'�[0m
�[94mwifi�[0m          [NA]�[0m�[0m
===============================================================================
Total time to update all stats: �[94m2.19037s�[0m
===============================================================================

Additional context
n/a

You can also pastebin:

• the Glances configuration file
  glances.conf.txt

• the Glances log file (https://glances.readthedocs.io/en/latest/config.html#logging)
  glances-Administrator.log

[nicolargo]

Hi @AnthonyBe thanks for the issue report.

It's a bug, on Windows OS, the file /sys/class/power_supply do not exist and should be ignore.

[AnthonyBe]

Copy that!

[nicolargo]

Corrected in the develop branch.

Will be released in Glances 4.0.4.