[Bug]: RunnerClient.asynchronous throws exception

[sundowner69]

What happened?

I have a small piece of code to start a salt runner asynchronously:

import salt.runner
import salt.config

opts = salt.config.client_config("/etc/salt/master")
runner = salt.runner.RunnerClient(opts)
print(runner.asynchronous('fileserver.file_list',{}))

I get the following exception:

Process ProcessFunc(AsyncClientMixin._proc_function, fun=fileserver.file_list jid=20250916140254634476):
Traceback (most recent call last):
  File "/usr/lib64/python3.6/multiprocessing/process.py", line 258, in _bootstrap
    self.run()
  File "/usr/lib/python3.6/site-packages/salt/utils/process.py", line 953, in wrapped_run_func
    salt._logging.set_logging_options_dict(self.__logging_config__)
  File "/usr/lib/python3.6/site-packages/salt/_logging/impl.py", line 434, in set_logging_options_dict
    set_lowest_log_level_by_opts(opts)
  File "/usr/lib/python3.6/site-packages/salt/_logging/impl.py", line 1055, in set_lowest_log_level_by_opts
    get_logging_level_from_string(opts.get("log_level")),
AttributeError: 'NoneType' object has no attribute 'get'
{'tag': 'salt/run/20250916140254634476', 'jid': '20250916140254634476'}

Where do I go wrong? I do not find any explanation in the docs.

Thanks
Thomas

Type of salt install

Official rpm

Major version

3006.x

What supported OS are you seeing the problem on? Can select multiple. (If bug appears on an unsupported OS, please open a GitHub Discussion instead)

sles-15-sp5

salt --versions-report output

mars:~ # salt --versions-report
Salt Version:
          Salt: 3006.0

Python Version:
        Python: 3.6.15 (default, Sep 23 2021, 15:41:43) [GCC]

Dependency Versions:
          cffi: 1.13.2
      cherrypy: Not Installed
   contextvars: 2.4
      dateutil: 2.8.1
     docker-py: Not Installed
         gitdb: Not Installed
     gitpython: Not Installed
        Jinja2: 2.10.1
       libgit2: Not Installed
  looseversion: 1.0.2
      M2Crypto: 0.38.0
          Mako: Not Installed
       msgpack: 0.5.6
  msgpack-pure: Not Installed
  mysql-python: Not Installed
     packaging: 21.3
     pycparser: 2.17
      pycrypto: Not Installed
  pycryptodome: Not Installed
        pygit2: Not Installed
  python-gnupg: Not Installed
        PyYAML: 5.4.1
         PyZMQ: 17.1.2
        relenv: Not Installed
         smmap: Not Installed
       timelib: Not Installed
       Tornado: 4.5.3
           ZMQ: 4.2.3

System Versions:
          dist: sles 15.5
        locale: UTF-8
       machine: x86_64
       release: 5.14.21-150500.55.94-default
        system: Linux
       version: SLES 15.5

[dwoz]

We do not support Python 3.6. You need to re-open this with at Python >=3.10

[TeddyAndrieux]

This issue is still valid with latest 3006.24 and python3.10 (I also tried on 3007.14, 3008.0rc2 and python 3.12 and got the same issue)

A really simple way to reproduce it

import salt.utils.process

salt.utils.process.Process(target=lambda: None).start()

But this would happen for any run that depend on this utils.process.Process like SSHClient.cmd RunnerClient.asynchronous, WheelClient.asynchronous or any state.sls with parallel: True

I think a quick fix could be to update the salt/_logging/impl.py set_logging_options_dict to just return if opts is None

I will shoot a PR for it