poetry install with build script fails on 1.2.0

❯ poetry --version
Poetry (version 1.2.0a2)

I am trying to run poetry install. This configuration works on 1.1.12

# pyproject.toml
[tool.poetry]
name = "test"
version = "0.1.0"
description = ""
authors = ["Matteo Santamaria <[e-mail]>"]
readme = "README.md"
build = "build.py"

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

[tool.poetry.dev-dependencies]
numpy = "^1.22.0"

[build-system]
requires = ["poetry-core", "numpy>=1.22.0,<=1.23.0"] 
build-backend = "poetry.core.masonry.api"

# build.py
import numpy as np

def build(setup_kwargs):
    return setup_kwargs

but fails on 1.2.0a2.

Tested on macOS Monterey Version 12.0.1 Apple M1 Pro

[abn]

Reopening this as the issue exists when a setup.py file was generated forcefully. Do note that build scripts are still an experimental feature and breakages can occur.

#5590 should fix the reported issue. Additionally, #5401 should improve the experience when generate-setup-file = false.

[neersighted]

You should set environmental variables in a Dockerfile using the ENV directive.

RUN curl -sSL https://install.python-poetry.org/ | python3 - --version 1.2.0
ENV PATH="$HOME/.local/bin:$PATH"
RUN poetry --version

Please do not turn off virtualenv creation – you are likely to run into way more problems for no benefit. The ability to turn off virtualenv creation was intended as a “I know what I am doing” feature for very advanced users – if you don’t know why you need it off, you do not need it off – see #6398 for a roundup issue on this topic.

Finally, please don’t use this solved issue for support – you are sending notifications to everyone who has participated in it for something that is off-topic. Please start a Discussion on the discussion tab, or join the Discord server if you need support from the community.