Glances 4.3.0 | Error while initializing the ports plugin (No implementation for gateways() yet)

[AnthonyBe]

Describe the bug
Ref this as starting point - #3064
So after installing via pip install glances all was fine.
Then ran pip install glances[all] which also installed netifaces2 lib and when I then ran Glances I got error:

C:\WINDOWS\system32>glances -w --fs-free-space --enable-process-extended --config %APPDATA%\glances\glances.conf
Error while initializing the ports plugin (No implementation for `gateways()` yet)
Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "C:\Python313\Scripts\glances.exe\__main__.py", line 7, in <module>
    sys.exit(main())
             ~~~~^^
  File "c:\Python313\Lib\site-packages\glances\__init__.py", line 173, in main
    start(config=core.get_config(), args=core.get_args())
    ~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "c:\Python313\Lib\site-packages\glances\__init__.py", line 102, in start
    mode = GlancesMode(config=config, args=args)
  File "c:\Python313\Lib\site-packages\glances\webserver.py", line 32, in __init__
    self.stats.update()
    ~~~~~~~~~~~~~~~~~^^
  File "c:\Python313\Lib\site-packages\glances\stats.py", line 269, in update
    self.__update_plugin(p)
    ~~~~~~~~~~~~~~~~~~~~^^^
  File "c:\Python313\Lib\site-packages\glances\stats.py", line 258, in __update_plugin
    self._plugins[p].update()
    ~~~~~~~~~~~~~~~~~~~~~~~^^
  File "c:\Python313\Lib\site-packages\glances\plugins\plugin\model.py", line 1124, in wrapper
    ret = fct(self, *args, **kw)
  File "c:\Python313\Lib\site-packages\glances\plugins\plugin\model.py", line 1141, in wrapper
    ret = fct(*args, **kw)
  File "c:\Python313\Lib\site-packages\glances\plugins\ip\__init__.py", line 144, in update
    stats = self.get_stats_for_local_input(stats)
  File "c:\Python313\Lib\site-packages\glances\plugins\ip\__init__.py", line 157, in get_stats_for_local_input
    stop, stats = self.get_private_ip(stats)
                  ~~~~~~~~~~~~~~~~~~~^^^^^^^
  File "c:\Python313\Lib\site-packages\glances\plugins\ip\__init__.py", line 91, in get_private_ip
    default_gw = netifaces.gateways()[netifaces.AF_INET][0]
                 ~~~~~~~~~~~~~~~~~~^^
  File "c:\Python313\Lib\site-packages\netifaces\__init__.py", line 232, in gateways
    raise NotImplementedError("No implementation for `gateways()` yet")
NotImplementedError: No implementation for `gateways()` yet

I disabled Ports module in my conf file but it still errors.
After removing Glances and resinstalling (pip install glances) I continued to get the same error.
I've had to delete:

• C:\Python313\Lib\site-packages\netifaces
• C:\Python313\Lib\site-packages\netifaces2-0.0.22.dist-info
  to get Glances running again.

It seems like the move from netifaces to netifaces2 may be the cause of this?

Environment

• Operating System: Windows Server 2016, python 3.13.1
• Glances & psutil versions: Glances version 4.3.0.6, psutil 6.1.0

• the Glances configuration file
  glances.conf-no Ports.txt

[nicolargo]

Yes, netifaces is deprecated and should be uninstall. instead netifaces2 should be install:

pip uninstall netifaces
pip install netifaces2

[mbnoimi]

Yes, netifaces is deprecated and should be uninstall. instead netifaces2 should be install:

Didn't fix the issue! netifaces basically not installed in my server!

Microsoft Windows [Version 10.0.14393]
(c) 2016 Microsoft Corporation. All rights reserved.

C:\Users\Administrator> glances -w
Glances Web User Interface started on http://0.0.0.0:61208/
Glances RESTful API Server started on http://0.0.0.0:61208/api/4
Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "C:\Python313\Scripts\glances.exe\__main__.py", line 7, in <module>
    sys.exit(main())
             ~~~~^^
  File "C:\Python313\Lib\site-packages\glances\__init__.py", line 173, in main
    start(config=core.get_config(), args=core.get_args())
    ~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Python313\Lib\site-packages\glances\__init__.py", line 102, in start
    mode = GlancesMode(config=config, args=args)
  File "C:\Python313\Lib\site-packages\glances\webserver.py", line 35, in __init__
    self.web = GlancesRestfulApi(config=config, args=args)
               ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Python313\Lib\site-packages\glances\outputs\glances_restful_api.py", line 165, in __init__
    self.autodiscover_client = GlancesAutoDiscoverClient(socket.gethostname().split('.', 1)[0], self.args)
                               ~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Python313\Lib\site-packages\glances\servers_list_dynamic.py", line 196, in __init__
    zeroconf_bind_address = self.find_active_ip_address()
  File "C:\Python313\Lib\site-packages\glances\servers_list_dynamic.py", line 247, in find_active_ip_address
    gateway_itf = netifaces.gateways()[netifaces.AF_INET][0][1]
                  ~~~~~~~~~~~~~~~~~~^^
  File "C:\Users\Administrator\AppData\Roaming\Python\Python313\site-packages\netifaces\__init__.py", line 232, in gateways
    raise NotImplementedError("No implementation for `gateways()` yet")
NotImplementedError: No implementation for `gateways()` yet

C:\Users\Administrator>pip uninstall netifaces
WARNING: Skipping netifaces as it is not installed.

C:\Users\Administrator>pip install netifaces2
Requirement already satisfied: netifaces2 in c:\users\administrator\appdata\roaming\python\python313\site-packages (0.0.22)

C:\Users\Administrator> glances -w
Glances Web User Interface started on http://0.0.0.0:61208/
Glances RESTful API Server started on http://0.0.0.0:61208/api/4
Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "C:\Python313\Scripts\glances.exe\__main__.py", line 7, in <module>
    sys.exit(main())
             ~~~~^^
  File "C:\Python313\Lib\site-packages\glances\__init__.py", line 173, in main
    start(config=core.get_config(), args=core.get_args())
    ~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Python313\Lib\site-packages\glances\__init__.py", line 102, in start
    mode = GlancesMode(config=config, args=args)
  File "C:\Python313\Lib\site-packages\glances\webserver.py", line 35, in __init__
    self.web = GlancesRestfulApi(config=config, args=args)
               ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Python313\Lib\site-packages\glances\outputs\glances_restful_api.py", line 165, in __init__
    self.autodiscover_client = GlancesAutoDiscoverClient(socket.gethostname().split('.', 1)[0], self.args)
                               ~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Python313\Lib\site-packages\glances\servers_list_dynamic.py", line 196, in __init__
    zeroconf_bind_address = self.find_active_ip_address()
  File "C:\Python313\Lib\site-packages\glances\servers_list_dynamic.py", line 247, in find_active_ip_address
    gateway_itf = netifaces.gateways()[netifaces.AF_INET][0][1]
                  ~~~~~~~~~~~~~~~~~~^^
  File "C:\Users\Administrator\AppData\Roaming\Python\Python313\site-packages\netifaces\__init__.py", line 232, in gateways
    raise NotImplementedError("No implementation for `gateways()` yet")
NotImplementedError: No implementation for `gateways()` yet

C:\Users\Administrator>

[AnthonyBe]

I get the aforementioned error when I have netifaces2 installed.
When I uninstall netifaces2 and revert to netifaces, Glances 4.3.0 runs without error.

[AnthonyBe]

I saw Commit 728f86f in 4.3.0.8 and so I retried
pip install --upgrade glances[all] which reinstalled netifaces2 - same error as before.
And as before, when I uninstall netifaces2, Glances runs without error.

What are you thinking here? Is this a Glances/netifaces2 issue? or a Windows python netifaces2 lib issue? or something else again?

[iamronr]

Seeing the same thing on my end. I just did a fresh install on my new Mac mini.

[iamronr]

Switched from a python virtualenv install to a homebrew install. It's working again...

[IngmarStein]

I believe this happens when the zeroconf module is installed.
In this case, zeroconf_tag in https://github.com/nicolargo/glances/blob/develop/glances/servers_list_dynamic.py#L21 is True
which triggers this code path: https://github.com/nicolargo/glances/blob/develop/glances/servers_list_dynamic.py#L196.

The method called unconditionally imports netifaces and bails at the missing implementation for gateways():

   @staticmethod
    def find_active_ip_address():
        """Try to find the active IP addresses."""
        import netifaces

        # Interface of the default gateway
        gateway_itf = netifaces.gateways()[netifaces.AF_INET][0][1]
        # IP address for the interface
        return netifaces.ifaddresses(gateway_itf)[netifaces.AF_INET][0]['addr']

[IngmarStein]

Potential workarounds:

• uninstall the zeroconf module
• bind the server to a specific address or hostname, e.g. -B 127.0.0.1

[gknzby]

Same problem still occurs in latest version. I have installed everything 'fresh' (all python packages), I updated all and spent hours to solve cause of error.

Python 3.13.3
pip 25.1.1
Glances version: 4.3.1
Glances API version: 4
PsUtil version: 7.0.1

Exactly same error message as ones above.

After saw this issue, I uninstalled netifaces2, installed netifaces and then problem solved.