Poetry: No module named pip

[SBillion]

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

• OS version and name: Linux Mint 19.1 Tessa
• Poetry version: 1.0.0a2
• Link of a Gist with the contents of your pyproject.toml file: https://gist.github.com/SBillion/fd5be58af06d345ca09f3e907bb8be0f

Issue

I just installed poetry from the get-poetry script and try to make it work. I'm using python3.7 . When I tried to add a package, I got this:

Command ['/home/seb/.cache/pypoetry/virtualenvs/poetry-demo-_YOEyiNj-py3.7/bin/python', '-m', 'pip', 'install', '--no-deps', '-U', 'markupsafe==1.1.1'] errored with the following output: /home/seb/.cache/pypoetry/virtualenvs/poetry-demo-_YOEyiNj-py3.7/bin/python: No module named pip

[drunkwcodes]

Please revert and apt install python3-pip first.

[mozartilize]

or recreate your virtualenv, just experienced this issue days ago, hope this help

[SBillion]

Deleting virtualenv for recreate helped me

[Heroidjsjs]

Hi, I'm still running in this issue after venv reconfiguration and reinstallation of pip3 on debian machine.
Python version: 3.7
Poetry: 0.12.17

[a-berg]

Hi, having this exact problem with poetry when I try to use python 3.8 instead of python 3.6.9 (the default in Ubuntu).
May it be related to ensurepip being disabled for Debian and Ubuntu systems?