The specified Python version (3.8) is not supported by the project (^3.7). #1735

jobevers · 2019-12-13T15:58:51Z

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: Ubuntu 18.04.3 LTS
Poetry version: Poetry version 1.0.0
Link of a Gist with the contents of your pyproject.toml file: https://gist.github.com/jobevers/a3e674e4f316a6c0ea535ac818bf5f61

Issue

I wanted to start using python 3.8 in a project:

» poetry env use -vvv 3.8.0 

[NoCompatiblePythonVersionFound]
The specified Python version (3.8) is not supported by the project (^3.7).
Please choose a compatible version or loosen the python constraint specified in the pyproject.toml file.

Traceback (most recent call last):
  File "/home/jobevers/.local/pipx/venvs/poetry/lib/python3.6/site-packages/clikit/console_application.py", line 131, in run
    status_code = command.handle(parsed_args, io)
  File "/home/jobevers/.local/pipx/venvs/poetry/lib/python3.6/site-packages/clikit/api/command/command.py", line 120, in handle
    status_code = self._do_handle(args, io)
  File "/home/jobevers/.local/pipx/venvs/poetry/lib/python3.6/site-packages/clikit/api/command/command.py", line 171, in _do_handle
    return getattr(handler, handler_method)(args, io, self)
  File "/home/jobevers/.local/pipx/venvs/poetry/lib/python3.6/site-packages/cleo/commands/command.py", line 92, in wrap_handle
    return self.handle()
  File "/home/jobevers/.local/pipx/venvs/poetry/lib/python3.6/site-packages/poetry/console/commands/env/use.py", line 23, in handle
    env = manager.activate(self.argument('python'), self._io)
  File "/home/jobevers/.local/pipx/venvs/poetry/lib/python3.6/site-packages/poetry/utils/env.py", line 259, in activate
    self.create_venv(io, executable=python, force=create)
  File "/home/jobevers/.local/pipx/venvs/poetry/lib/python3.6/site-packages/poetry/utils/env.py", line 520, in create_venv
    self._poetry.package.python_versions, python_minor

The text was updated successfully, but these errors were encountered:

sdispater · 2019-12-13T16:12:10Z

You should use only the minor version with env use:

poetry env use 3.8

Basically, Poetry looks for a python3.8.0 executable which it does not find leading to this error.

finswimmer · 2019-12-13T16:13:35Z

Hello @jobevers ,

I guess the error message is misleading. poetry env use expect the path to an python executable and not a version number.

So specify the complete path to the python 3.8 interpreter or, if you use pyenv for handling multiple python versions, activate the correct version first.

fin swimmer

jobevers · 2019-12-13T16:15:20Z

» poetry env use -vvv 3.8

[NoCompatiblePythonVersionFound]
The specified Python version (3.8) is not supported by the project (^3.7).
Please choose a compatible version or loosen the python constraint specified in the pyproject.toml file.

Traceback (most recent call last):
  File "/home/jobevers/.local/pipx/venvs/poetry/lib/python3.6/site-packages/clikit/console_application.py", line 131, in run
    status_code = command.handle(parsed_args, io)
  File "/home/jobevers/.local/pipx/venvs/poetry/lib/python3.6/site-packages/clikit/api/command/command.py", line 120, in handle
    status_code = self._do_handle(args, io)
  File "/home/jobevers/.local/pipx/venvs/poetry/lib/python3.6/site-packages/clikit/api/command/command.py", line 171, in _do_handle
    return getattr(handler, handler_method)(args, io, self)
  File "/home/jobevers/.local/pipx/venvs/poetry/lib/python3.6/site-packages/cleo/commands/command.py", line 92, in wrap_handle
    return self.handle()
  File "/home/jobevers/.local/pipx/venvs/poetry/lib/python3.6/site-packages/poetry/console/commands/env/use.py", line 23, in handle
    env = manager.activate(self.argument('python'), self._io)
  File "/home/jobevers/.local/pipx/venvs/poetry/lib/python3.6/site-packages/poetry/utils/env.py", line 259, in activate
    self.create_venv(io, executable=python, force=create)
  File "/home/jobevers/.local/pipx/venvs/poetry/lib/python3.6/site-packages/poetry/utils/env.py", line 520, in create_venv
    self._poetry.package.python_versions, python_minor

sdispater · 2019-12-13T16:16:10Z

@jobevers Do you actually have a python3.8 executable in your PATH?

jobevers · 2019-12-13T16:16:34Z

poetry env use -vvv /home/jobevers/code/pyenv/versions/3.8.0/bin/python                                             

[NoCompatiblePythonVersionFound]
The specified Python version (3.8) is not supported by the project (^3.7).
Please choose a compatible version or loosen the python constraint specified in the pyproject.toml file.

Traceback (most recent call last):
  File "/home/jobevers/.local/pipx/venvs/poetry/lib/python3.6/site-packages/clikit/console_application.py", line 131, in run
    status_code = command.handle(parsed_args, io)
  File "/home/jobevers/.local/pipx/venvs/poetry/lib/python3.6/site-packages/clikit/api/command/command.py", line 120, in handle
    status_code = self._do_handle(args, io)
  File "/home/jobevers/.local/pipx/venvs/poetry/lib/python3.6/site-packages/clikit/api/command/command.py", line 171, in _do_handle
    return getattr(handler, handler_method)(args, io, self)
  File "/home/jobevers/.local/pipx/venvs/poetry/lib/python3.6/site-packages/cleo/commands/command.py", line 92, in wrap_handle
    return self.handle()
  File "/home/jobevers/.local/pipx/venvs/poetry/lib/python3.6/site-packages/poetry/console/commands/env/use.py", line 23, in handle
    env = manager.activate(self.argument('python'), self._io)
  File "/home/jobevers/.local/pipx/venvs/poetry/lib/python3.6/site-packages/poetry/utils/env.py", line 259, in activate
    self.create_venv(io, executable=python, force=create)
  File "/home/jobevers/.local/pipx/venvs/poetry/lib/python3.6/site-packages/poetry/utils/env.py", line 520, in create_venv
    self._poetry.package.python_versions, python_minor

jobevers · 2019-12-13T16:17:29Z

» which python3.8
/home/jobevers/code/pyenv/shims/python3.8

sdispater · 2019-12-13T16:19:34Z

Oh, I know what's going on, this is a bug in how Poetry gets the patch version of the executable. Basically, it uses the current Python for the patch version instead of the one of the passed executable.

This should be an easy fix.

Fixes #1735

) Fixes #1735

…thon-poetry#1736) Fixes python-poetry#1735

echernyavskiy · 2020-01-09T14:23:03Z

@sdispater could you cut a patch release that includes this fix?

kamyar · 2020-06-05T10:46:58Z

+1 having this issue at the moment with python 3.8.2.

Edit:
changing

[tool.poetry.dependencies]
python = "3.8"

to

[tool.poetry.dependencies]
python = "^3.8"

worked.

I guess initially set it too strictly without knowing

tinder-alexbohr · 2020-08-26T21:50:30Z

I guess initially set it too strictly without knowing

I'm getting mixed results - work for me but not the person next to me, not sure which is expected behaviour. When saying:

[tool.poetry.dependencies]
python = "3.8"

which patch versions does that support?

abraralali · 2020-10-21T17:27:50Z

+1 having this issue at the moment with python 3.8.2.

Edit:
changing
[tool.poetry.dependencies]
python = "3.8"
to
[tool.poetry.dependencies]
python = "^3.8"
worked.

I guess initially set it too strictly without knowing

Thank you kamyar
This solution worked for me also. Python 3.8.5

python-poetry/poetry#1735 (comment)

himsgupta · 2022-01-11T18:50:02Z

+1 having this issue at the moment with python 3.8.2.

Edit: changing
[tool.poetry.dependencies]
python = "3.8"
to
[tool.poetry.dependencies]
python = "^3.8"
worked.

I guess initially set it too strictly without knowing
It didinot work in my case, somehow

neersighted · 2022-09-14T22:55:17Z

Fixed mine by adding this to ~/.zshrc (on advice from work documentation). Also needed to restart shell and rerun poetry install.
export LDFLAGS="-L/opt/homebrew/opt/openssl@3/lib"
export CPPFLAGS="-I/opt/homebrew/opt/openssl@3/include"
export C_INCLUDE_PATH=/opt/homebrew/Cellar/librdkafka/1.8.2/include
export LIBRARY_PATH=/opt/homebrew/Cellar/librdkafka/1.8.2/lib

I think you may have gotten turned around and are discussing something totally different.

allendred · 2023-01-31T07:53:04Z

+1 having this issue at the moment with python 3.8.2.

Edit: changing
[tool.poetry.dependencies]
python = "3.8"
to
[tool.poetry.dependencies]
python = "^3.8"
worked.

I guess initially set it too strictly without knowing

This does not work. After manually modifying toml, python-versions = "^3.7" executes poetry add numpy and still uses version 3.10 of numpy

- I needed to specify the python version for poetry to work properly... I didn't have python 3.9 installed... python-poetry/poetry#1735 (comment) - Don't limit python version to ^3.9, but we should support all newer version as well - Add titles to make the Github Action page easier to read

github-actions · 2024-02-29T19:06:08Z

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.

jobevers added the kind/bug Something isn't working as expected label Dec 13, 2019

sdispater self-assigned this Dec 13, 2019

sdispater added a commit that referenced this issue Dec 13, 2019

Fix the python patch version retrieval when passing an executable

c2ca2a5

Fixes #1735

sdispater mentioned this issue Dec 13, 2019

Fix the python patch version retrieval when passing an executable #1736

Merged

2 tasks

sdispater closed this as completed in #1736 Dec 14, 2019

sdispater added a commit that referenced this issue Dec 14, 2019

Fix the python patch version retrieval when passing an executable (#1736

6987aaa

) Fixes #1735

shenek pushed a commit to shenek/poetry that referenced this issue Dec 31, 2019

Fix the python patch version retrieval when passing an executable (py…

300e567

…thon-poetry#1736) Fixes python-poetry#1735

honno added a commit to honno/yygarchive.org that referenced this issue Mar 11, 2021

use py ver ^3.8 instead of fixed 3.8.0

9c724d3

python-poetry/poetry#1735 (comment)

tigerhawkvok mentioned this issue Jun 3, 2021

Patch revision specification in pyproject.toml breaks creating new venv #4136

Closed

3 tasks

xkortex mentioned this issue Aug 23, 2022

1.2.0rc1 - poetry env - Current Python version conflict with pre-existing virtualenv #6222

Closed

3 tasks

nickumia-reisys mentioned this issue Apr 28, 2023

Minor Optimizations GSA/datagov-harvester#6

Merged

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The specified Python version (3.8) is not supported by the project (^3.7). #1735

The specified Python version (3.8) is not supported by the project (^3.7). #1735

jobevers commented Dec 13, 2019 •

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sdispater commented Dec 13, 2019

finswimmer commented Dec 13, 2019

jobevers commented Dec 13, 2019

sdispater commented Dec 13, 2019

jobevers commented Dec 13, 2019

jobevers commented Dec 13, 2019

sdispater commented Dec 13, 2019

echernyavskiy commented Jan 9, 2020

kamyar commented Jun 5, 2020 •

edited

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tinder-alexbohr commented Aug 26, 2020

abraralali commented Oct 21, 2020

himsgupta commented Jan 11, 2022

neersighted commented Sep 14, 2022

allendred commented Jan 31, 2023

github-actions bot commented Feb 29, 2024

The specified Python version (3.8) is not supported by the project (^3.7). #1735

The specified Python version (3.8) is not supported by the project (^3.7). #1735

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jobevers commented Dec 13, 2019 • edited Loading

Issue

sdispater commented Dec 13, 2019

finswimmer commented Dec 13, 2019

jobevers commented Dec 13, 2019

sdispater commented Dec 13, 2019

jobevers commented Dec 13, 2019

jobevers commented Dec 13, 2019

sdispater commented Dec 13, 2019

echernyavskiy commented Jan 9, 2020

kamyar commented Jun 5, 2020 • edited Loading

tinder-alexbohr commented Aug 26, 2020

abraralali commented Oct 21, 2020

himsgupta commented Jan 11, 2022

neersighted commented Sep 14, 2022

allendred commented Jan 31, 2023

github-actions bot commented Feb 29, 2024

jobevers commented Dec 13, 2019 •

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kamyar commented Jun 5, 2020 •

edited

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