Poetry manager and python dependency with custom poetry source url

[slackfan]

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This question is a follow up #26748 but slightly different.

When using the poetry manager and having a pyproject.toml file with configuration

[project]
name = "my-project"
requires-python = ">=3.12"
dynamic = [
  "dependencies",
]

[tool.poetry.dependencies]
python = "^3.12"

[[tool.poetry.source]]
name = "download"
priority = "primary"
url = "https://artifactory.example.internal/artifactory/api/pypi/my-virtual/simple/"

then the renovatebot throws the following warning

[{
    "name": "renovate",
    "hostname": "runner-dxzjnnzgj-project-12613-concurrent-1",
    "pid": 31,
    "level": 20,
    "logContext": "26855108",
    "repository": "my-project",
    "datasource": "github-releases",
    "packageName": "containerbase/python-prebuild",
    "url": "https://artifactory.example.internal/artifactory/api/pypi/my-virtual/simple/api/graphql",
    "errCode": "ERR_NON_2XX_3XX_RESPONSE",
    "msg": "Datasource connection error",
    "time": "2025-07-16T09:28:57.540Z",
    "v": 0,
    "trace_id": "a5066194ddfa29a1b13031937db31e22",
    "span_id": "cc043d2897f7c85e",
    "trace_flags": "01"
  }, {
    "name": "renovate",
    "hostname": "runner-dxzjnnzgj-project-12613-concurrent-1",
    "pid": 31,
    "level": 20,
    "logContext": "26855108",
    "repository": "my-project",
    "dependency": "containerbase/python-prebuild",
    "packageFile": "pyproject.toml",
    "msg": "Failed to look up github-releases package containerbase/python-prebuild",
    "time": "2025-07-16T09:28:57.540Z",
    "v": 0,
    "trace_id": "a5066194ddfa29a1b13031937db31e22",
    "span_id": "cc043d2897f7c85e",
    "trace_flags": "01"
  }]

using a pypi cache in combination with the github-releases data source.

Question: As the other question was closed with conclusion "misconfiguration" I do not see how what the misconfiguration could be here. Is there a configuration which requires to be added to resolve the python dependency version properly I am actually missing?

Used renovate bot version 40.62.1

Related code part - as it seems - https://github.com/renovatebot/renovate/blob/main/lib/modules/manager/poetry/extract.ts#L46

Logs (if relevant)

No response

[slackfan]

And closing. After starting the discussion, I found legacy configuration which causes the issue. It's just unexpected and at first counter intuitive to find a a different datasource than pypi for one of these managers.

{"packageRules": [
    {
      "matchManagers": [
        "pep621",
        "poetry",
        "pip_requirements"
      ],
      "registryUrls": [
        "https://artifactory.example.internal/artifactory/api/pypi/my-virtual/simple"
      ]
    }
]}