Private PyPi URL for publishing and downloading is not the same

[tropxy]

• I have searched the issues of this repo and believe that this is not a duplicate.

Issue

Hi,

First thank you for your effort on this library.
I have been trying to add a dependency from a private pypi repo and I followed the docs and other internet resources to be able to download and upload the package from/to my private PyPi server. However, after some experiments, I realised that the download and upload just worked using different URLs.

For downloading I used the following configuration in pyproject.toml, which follows Poetry docs:

[[tool.poetry.source]]
name = "foo_api"
url = "https://pypi.foo.com/simple/"

And it works perfectly.

However, for uploading I had to use a different URL:

$ poetry config repo.foo_api https://pypi.foo.com/
$ poetry publish -r foo_api

which is not what is recommended in the docs [1]

If I use the recommendation from the Docs, then I get the following:

Publishing foo_api (0.1.0) to mqtt_api
 - Uploading foo_api-0.1.0-py3-none-any.whl 100%

  UploadError

  HTTP Error 405: Method Not Allowed

  at ~/.virtualenvs/foo_api/lib/python3.10/site-packages/poetry/publishing/uploader.py:216 in _upload
      212│                     self._register(session, url)
      213│                 except HTTPError as e:
      214│                     raise UploadError(e)
      215│
    → 216│             raise UploadError(e)
      217│
      218│     def _do_upload(
      219│         self, session, url, dry_run=False
      220│     ):  # type: (requests.Session, str, Optional[bool]) -> None
make: *** [deploy] Error 1

Seems I was not the first tumbling into this issue, as I found a similar one in stackoverflow:
https://stackoverflow.com/questions/65064910/cant-upload-poetry-package-to-local-dockerized-pypiserver

Installation details
Poetry version 1.1.11
Python version 3.10
20.6.0 Darwin Kernel Version 20.6.0: Mon Aug 30 06:12:21 PDT 2021; root:xnu-7195.141.6~3/RELEASE_X86_64 x86_64

[FilBot3]

Similar to Issue: #5348

[abn]

@tropxy I suspect you need to identify what upload endpoint to use.

Poetry distinguishes between sources and repositories for publishing. You are on the correct track, however I suspect https://pypi.foo.com/ does not accept uploads, the upload url might look like https://upload.pypi.org/legacy/ (Warehouse), https://pkgs.dev.azure.com/<your-organization-name>/<your-project-name>/_packaging/<your-feed-name>/pypi/upload (Azure DevOps) etc. Might need to chck what your index deployment uses.