poetry: Poetry 1.1.4 - "Unable to find installation candidates" when using a private secondary repository

  • I am on the latest Poetry version.
  • I have searched the issues of this repo and believe that this is not a duplicate.
  • If an exception occurs when executing a command, I executed it again in debug mode (-vvv option).
  • OS version and name: MacOS Catalina (10.15.4)
  • Poetry version: 1.1.4

Issue

I have a project that uses a private package. But for some reason, when using poetry 1.1.4, the poetry.lock file generated on MacOS is in broken.

I receive the following error:

Installing click (7.1.2): Failed

  RuntimeError

  Unable to find installation candidates for click (7.1.2)
~/venvs/poetry/lib/python3.8/site-packages/poetry/installation/chooser.py:72 in choose_for
       68│
       69│             links.append(link)
       70│
       71│         if not links:
    →  72│             raise RuntimeError(
       73│                 "Unable to find installation candidates for {}".format(package)
       74│             )
       75│
       76│         # Get the best link

I’ve reproduced this issue with a simple pyproject.toml that looks like this:

[tool.poetry]
name = "check"
version = "0.1.0"
description = ""
authors = ["Your Name <you@example.com>"]

[[tool.poetry.source]]
name = "private-repo"
url = "....."
secondary = true

[tool.poetry.dependencies]
python = "^3.6.1"
click = "^7.1.2"

[tool.poetry.dev-dependencies]

[build-system]
requires = ["poetry-core>=1.0.0"]
build-backend = "poetry.core.masonry.api"

The poetry.lock file:

[[package]]
name = "click"
version = "7.1.2"
description = "Composable command line interface toolkit"
category = "main"
optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"

[package.source]
type = "legacy"
url = "....."
reference = "private-repo"

[metadata]
lock-version = "1.1"
python-versions = "^3.6.1"
content-hash = "1e4a57826cb5553aa07a9ba3b0b9e101193b781d7ddd2d41a08f27a8fa25ac4e"

[metadata.files]
click = [
    {file = "click-7.1.2-py2.py3-none-any.whl", hash = "sha256:dacca89f4bfadd5de3d7489b7c8a566eee0d3676333fbb50030263894c38c0dc"},
    {file = "click-7.1.2.tar.gz", hash = "sha256:d2b5255c7c6349bc1bd1e59e08cd12acbbd63ce649f2588755783aa94dfb6b1a"},
]

I’ve found out that when using poetry==1.1.3, the lock file generated is a little different. It doesn’t contain the [package.source] section on packages from PyPI (With this lock file, the poetry install command works with no problem)

[[package]]
name = "click"
version = "7.1.2"
description = "Composable command line interface toolkit"
category = "main"
optional = false
python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"

[metadata]
lock-version = "1.1"
python-versions = "^3.6.1"
content-hash = "1e4a57826cb5553aa07a9ba3b0b9e101193b781d7ddd2d41a08f27a8fa25ac4e"

[metadata.files]
click = [
    {file = "click-7.1.2-py2.py3-none-any.whl", hash = "sha256:dacca89f4bfadd5de3d7489b7c8a566eee0d3676333fbb50030263894c38c0dc"},
    {file = "click-7.1.2.tar.gz", hash = "sha256:d2b5255c7c6349bc1bd1e59e08cd12acbbd63ce649f2588755783aa94dfb6b1a"},
]

Also, I tried to reproduce the issue on Ubuntu, but poetry==1.1.4 works with no problem there (was running my tests from a docker container)

I’ve seen this issue: https://github.com/python-poetry/poetry/issues/3151 but I don’t think it’s related

Is this a bug?

About this issue

  • Original URL
  • State: closed
  • Created 4 years ago
  • Reactions: 22
  • Comments: 16 (3 by maintainers)

Commits related to this issue

Most upvoted comments

This is how I setup private pypi

  1. Edit pyproject.toml
[[tool.poetry.source]]
name = "myprivate_pypi"
url = "https://pypi.myprivate_pypi.com/simple/"

  1. At terminal, add poetry config credentials for private_pypi poetry config http-basic.myprivate_pypi <username> <password>

  2. Update lock with --no-update poetry lock --no-update

  3. Run install or Add your library that is found at private pypi

poetry install or poetry add <my-package-found-at-myprivate_pypi>

Let me know if it fixes the issue

+10
cereblanco on Dec 12, 2020

I get a similar issue with Poetry 1.2

[tool.poetry]
name = "zzz"
version = "0.1.0"
description = "debugging"
authors = ["lrrr <ruler@omicron-persei.eight>"]
readme = "README.md"

# Broken:  Unable to find installation candidates for regex (2022.9.13)
[[tool.poetry.source]]
name = "private-pypi"
url = "https://pypi.private-pypi.com.au/simple"

# Works
#name = "private-pypi"
#url = "https://pypi.private-pypi.com.au/simple"
#default = false
#secondary = false
#
#[[tool.poetry.source]]
#name = "pypi-public"
#url = "https://pypi.org/simple/"
#default = true

[tool.poetry.dependencies]
python = "3.7.9"
regex = "2022.9.13"

[build-system]
requires = ["poetry-core>=1.0.0"]
build-backend = "poetry.core.masonry.api"
+7
tall-josh on Sep 14, 2022

Same error for another package, not sure why

• Installing kaleido (0.2.1.post1): Failed

  RuntimeError

  Unable to find installation candidates for kaleido (0.2.1.post1)

EDIT: Downgrading Kaleido to 0.2.1 fixed it.

+7
lambda-science on Mar 10, 2022

@lambda-science just encountered the error for kaleido. Thank you.

==> poetry add kaleido@0.2.1 worked.

+4
Guillaume-Fgt on Mar 13, 2022

I got this working by setting default on the public pypi:

[[tool.poetry.source]]
name = "pypi-public"
url = "https://pypi.org/simple/"
default = true

[[tool.poetry.source]]
name = "cloudrepo"
url = "<private source>"

Tried using with secondary = <flag> like this without luck:

[[tool.poetry.source]]
name = "pypi-public"
url = "https://pypi.org/simple/"
secondary = false

[[tool.poetry.source]]
name = "cloudrepo"
url = "<private source>"
secondary = true
+3
special-character on Dec 16, 2021

I just ran into this Unable to find installation candidates for jupyter-client (7.1.0)

version info: py3.9, Poetry version 1.1.6

Running poetry update seemed to fix it. But the error is not very informative.

+2
szeitlin on Feb 28, 2022

This doesn’t work for me:

As a workaround for folks until 1.2 comes out, explicitly adding pypi back as a primary source seems to work:

[[tool.poetry.source]]
name = 'pypi_'  # needed until python-poetry/poetry#3456 is resolved.
url = 'https://pypi.org/simple'
secondary = false

[[tool.poetry.source]]
name = 'packagecloud'
url = 'https://tolkeintokentokerton:@packagecloud.io/slug/General/pypi/simple'
secondary = true

Error message:

  RepositoryError

  403 Client Error: Forbidden for url: https://download.pytorch.org/whl/cpu/black/

My pyproject.toml:

...
[[tool.poetry.source]]
name = 'default'
url = 'https://pypi.python.org/simple'
secondary = false

[[tool.poetry.source]]
name = "pytorch"
url = "https://download.pytorch.org/whl/cpu/"
secondary = true
...
+2
caniko on Jul 1, 2021

I got a similar error with poetry 1.3.2 in CI/CD for the regex package:

Unable to find installation candidates for regex (2023.6.3)

I solved it by removing the virtual environment (with python 3.9.16) and clearing the caches.

+1
nbro10 on Jun 5, 2023

Is there any way we can get a dependency kaleido = "^0.2" working?

+1
adamryczkowski on May 17, 2022

I ran into this (poetry 1.1.2) when running poetry update and a new version of an inherited dependency had been released only a few minutes earlier. The update / install worked fine, but a CI build kept failing. If I removed the dependency on my local venv, I too would get this error. Installing with pip worked fine.

I tried running poetry update and it would complete without error, but poetry install failed to install some dependency. I also cleared the poetry cache with no luck.

The only thing that fixed this for me was to delete the poetry.lock file, and re-run poetry update. This should have rebuilt the same poetry.lock file as I understand it, it did not. The result was it fixed something about the known packages for this inherited dependency, and poetry install works locally and in CI.

+1
mbrancato on Jan 19, 2022

Looks like https://github.com/python-poetry/poetry/pull/3406 solves it. Closing this issue for now.

+1
orlevii on Dec 18, 2020
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