• 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 16.04
• Poetry version: 1.0.4
• Link of a Gist with the contents of your pyproject.toml file: https://gist.github.com/jr314159/55e9fbf3dc3ed7166d2026132cd2d639

Issue

I am using poetry with tox. This commit breaks tox+poetry in an environment where git is not installed. ab66bb9

Reverting to version 1.0.3 solves the issue.

My tox.ini looks like this:

[tox]
isolated_build = true
envlist = py37

[testenv]
deps = poetry
commands =
    poetry install -v
    poetry run pytest -s --doctest-modules