Poetry using the wrong Python version (not related to pyenv)

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

Question

I’m having an issue adding a package to a project because poetry is picking up on the wrong Python version. I’m pretty confident that something has gone awry in my system, but I’m doing my best to salvage the situation and not have to go through the whole process of installing Raspbian from scratch on this Raspberry Pi. I installed poetry using the recommended method (curl ...). Can you point me in the right direction? As mentioned in the title, I’m not using pyenv. All of the relevant issues I found were related to pyenv, so I’m not really sure how to get poetry to use the correct Python.

Here are some terminal outputs to help you diagnose the issue:

pi@widget:temp_logger$ python --version
Python 3.5.3
pi@widget:temp_logger!$ sudo python --version
Python 2.7.13
pi@widget:temp_logger$ poetry --version
Poetry 0.12.9
pi@widget:temp_logger$ poetry debug:info

Poetry
======

 * Version: 0.12.9
 * Python:  2.7.13


Virtualenv
==========

 * Python:         2.7.13
 * Implementation: CPython
 * Path:           NA


System
======

 * Platform: linux2
 * OS:       posix
 * Python:   /usr


pi@widget:temp_logger$ poetry add adafruit-blinka

[RuntimeError]
The current Python version (2.7.13) is not supported by the project (^3.5)
Please activate a compatible Python version.

add [-D|--dev] [--git GIT] [--path PATH] [-E|--extras EXTRAS] [--optional] [--python PYTHON] [--platform PLATFORM] [--allow-prereleases] [--dry-run] [--] <name> (<name>)...

[Peque]

Using Poetry 1.0 (prerelease) seems to fix this issue:

poetry self:update --preview
poetry env use python3.7

See https://github.com/sdispater/poetry/pull/731 for more information.

[zmitchell]

I reinstalled with Python 3 using curl ... | python3 and it still only picks up 2.7.