不好的是在nox会话中安装dev依赖项。
我有noxfile.py
,如下所示:
import nox
from nox.sessions import Session
from pathlib import Path
__dir__ = Path(__file__).parent.absolute()
@nox.session(python=PYTHON)
def test(session: Session):
session.install(str(__dir__)) # I want to use dev dependency here
session.run("pytest")
如何在nox会话中安装dev依赖项?
答案 0 :(得分:3)
当前,session.install
在外壳程序中仅支持runs pip,不支持poetry
和install
。您可以使用更通用的方法poetry
激活session.run
。
示例:
@nox.session(python=False)
def tests(session):
session.run('poetry', 'shell')
session.run('poetry', 'install')
session.run('pytest')
设置会话时,您可以通过禁用python virtualenv(python=False
)的创建并使用poetry
激活poetry shell
来创建所有内容。
答案 1 :(得分:2)
经过一番尝试和错误,与我在@Yann的回答中所说的相反,似乎poetry
忽略了VIRTUAL_ENV
传递的nox
变量。
受克劳迪奥·乔洛维奇(Claudio Jolowicz)精彩的系列Hypermodern Python的启发,我通过以下方法解决了这个问题:
@nox.session(python=PYTHON)
def test(session: Session) -> None:
"""
Run unit tests.
Arguments:
session: The Session object.
"""
args = session.posargs or ["--cov"]
session.install(".")
install_with_constraints(
session,
"coverage[toml]",
"pytest",
"pytest-cov",
"pytest-mock",
"pytest-flask",
)
session.run("pytest", *args)
在这里,我只是使用pip
安装PEP517软件包。
不幸的是,通过pip
安装的PEP517不支持可编辑的(“ -e”)开关。
仅供参考:install_with_constraints
是我从Claudio借用的功能,经过编辑可在Windows上使用:
def install_with_constraints(
session: Session, *args: str, **kwargs: Any
) -> None:
"""
Install packages constrained by Poetry's lock file.
This function is a wrapper for nox.sessions.Session.install. It
invokes pip to install packages inside of the session's virtualenv.
Additionally, pip is passed a constraints file generated from
Poetry's lock file, to ensure that the packages are pinned to the
versions specified in poetry.lock. This allows you to manage the
packages as Poetry development dependencies.
Arguments:
session: The Session object.
args: Command-line arguments for pip.
kwargs: Additional keyword arguments for Session.install.
"""
req_path = os.path.join(tempfile.gettempdir(), os.urandom(24).hex())
session.run(
"poetry",
"export",
"--dev",
"--format=requirements.txt",
f"--output={req_path}",
external=True,
)
session.install(f"--constraint={req_path}", *args, **kwargs)
os.unlink(req_path)