Bandersnatch sync error

[ianballou]

Version

      "versions": {
        "deb": "3.5.1",
        "rpm": "3.28.0",
        "core": "3.70.0",
        "file": "3.70.0",
        "ostree": "2.4.6",
        "python": "3.13.2",
        "ansible": "0.24.1",
        "certguard": "3.70.0",
        "container": "2.24.0"
      }

$ sudo pip3.12 list | grep bander
bandersnatch                             6.6.0

Describe the bug
When syncing from PyPI:

  error:
    traceback: |2
        File "/usr/local/lib/python3.12/site-packages/pulpcore/tasking/tasks.py", line 68, in _execute_task
          result = func(*args, **kwargs)
                   ^^^^^^^^^^^^^^^^^^^^^
        File "/usr/local/lib/python3.12/site-packages/pulp_python/app/tasks/sync.py", line 56, in sync
          first_stage = PythonBanderStage(remote)
                        ^^^^^^^^^^^^^^^^^^^^^^^^^
        File "/usr/local/lib/python3.12/site-packages/pulp_python/app/tasks/sync.py", line 107, in __init__
          create_bandersnatch_config(remote)
        File "/usr/local/lib/python3.12/site-packages/pulp_python/app/tasks/sync.py", line 62, in create_bandersnatch_config
          config = BandersnatchConfig().config
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
    description: "'BandersnatchConfig' object has no attribute 'config'"

To Reproduce
Create a Pulp Python remote with the following options:

[
  {
    "pulp_href": "/pulp/api/v3/remotes/python/python/01954910-ea53-7786-8440-7bbb58197dcb/",
    "prn": "prn:python.pythonremote:01954910-ea53-7786-8440-7bbb58197dcb",
    "pulp_created": "2025-02-27T20:20:00.213100Z",
    "pulp_last_updated": "2025-02-27T20:33:56.358740Z",
    "name": "Python_Test-1129507",
    "url": "https://pypi.org",
    "ca_cert": null,
    "client_cert": null,
    "tls_validation": true,
    "proxy_url": null,
    "pulp_labels": {},
    "download_concurrency": null,
    "max_retries": null,
    "policy": "on_demand",
    "total_timeout": 3600.0,
    "connect_timeout": 60.0,
    "sock_connect_timeout": 60.0,
    "sock_read_timeout": 3600.0,
    "headers": null,
    "rate_limit": 0,
    "hidden_fields": [
      {
        "name": "client_key",
        "is_set": false
      },
      {
        "name": "proxy_username",
        "is_set": false
      },
      {
        "name": "proxy_password",
        "is_set": false
      },
      {
        "name": "username",
        "is_set": false
      },
      {
        "name": "password",
        "is_set": false
      }
    ],
    "includes": [
      "pulp-rpm"
    ],
    "excludes": [],
    "prereleases": false,
    "package_types": [],
    "keep_latest_packages": 1,
    "exclude_platforms": []
  }
]

Sync it with content only mirroring.

Expected behavior
Sync works

[ianballou]

Downgrading bandersnatch to 6.5.0 fixes the issue.

[ggainey]

As of 6.6:

"As (mostly) an implementation detail, BandersnatchConfig is changed to be a subclass of ConfigParser. The BandersnatchConfig singleton can be used anywhere a ConfigParser instance is expected without having to use '.config' to access a nested ConfigParser."

Looks like CI is finding 6.3.0, so even tho we "allow" for <7.0, we're not seeing 6.6.0 in CI and therefore didn't get hit by this.

[ggainey]

6.6 is the first version that supports python-3.12, which is the environment the report was generated in

[ggainey]

I opened an issue w/ bandersnatch - pypa/bandersnatch#1892. Short term, we should prob pin to 6.5