Question

我已经在工作的pytest环境中安装了pytest-xdist：

pip install pytest-xdist

我收到了这个输出

Downloading/unpacking pytest-xdist
  Downloading pytest-xdist-1.10.tar.gz
  Running setup.py egg_info for package pytest-xdist

    no previously-included directories found matching '.hg'
Downloading/unpacking execnet>=1.1 (from pytest-xdist)
  Downloading execnet-1.2.0.tar.gz (163kB): 163kB downloaded
  Running setup.py egg_info for package execnet

    warning: no files found matching 'conftest.py'
Requirement already satisfied (use --upgrade to upgrade): pytest>=2.4.2 in /Users/sal/Documents/code/Python/VirtualEnv/Spring/lib/python2.7/site-packages (from pytest-xdist)
Requirement already satisfied (use --upgrade to upgrade): py>=1.4.20 in /Users/sal/Documents/code/Python/VirtualEnv/Spring/lib/python2.7/site-packages (from pytest>=2.4.2->pytest-xdist)
Installing collected packages: pytest-xdist, execnet
  Running setup.py install for pytest-xdist

    no previously-included directories found matching '.hg'
  Running setup.py install for execnet

    warning: no files found matching 'conftest.py'
Successfully installed pytest-xdist execnet
Cleaning up...

此时我试图并行运行我的测试套件

py.test -n 4

但我收到了这个输出

usage: py.test [options] [file_or_dir] [file_or_dir] [...]
py.test: error: unrecognized arguments: -n

＆＃39; py.test --version的输出是＆＃39;

This is pytest version 2.6.2, imported from /Users/sal/Documents/code/Python/VirtualEnv/Spring/lib/python2.7/site-packages/pytest.pyc
setuptools registered plugins:
  pytest-capturelog-0.7 at /Users/sal/Documents/code/Python/VirtualEnv/Spring/lib/python2.7/site-packages/pytest_capturelog.pyc
  pytest-contextfixture-0.1.1 at /Users/sal/Documents/code/Python/VirtualEnv/Spring/lib/python2.7/site-packages/pytest_contextfixture.pyc
  pytest-cov-1.7.0 at /Users/sal/Documents/code/Python/VirtualEnv/Spring/lib/python2.7/site-packages/pytest_cov.pyc
  pytest-django-2.6.2 at /Users/sal/Documents/code/Python/VirtualEnv/Spring/lib/python2.7/site-packages/pytest_django/plugin.pyc
  pytest-pydev-0.1 at /Users/sal/Documents/code/Python/VirtualEnv/Spring/lib/python2.7/site-packages/pytest_pydev.pyc
  pytest-runfailed-0.3 at /Users/sal/Documents/code/Python/VirtualEnv/Spring/lib/python2.7/site-packages/pytest_runfailed.pyc

和pytest-xdist实际上是缺失的。

我错了什么？感谢。

Answer 1

我遇到了同样的问题。问题不在于版本。某种程度上py.test无法看到xdist的位置。这对我有用：

pip install pytest --user
pip install pytest-xdist --user

export PATH = $ HOME / .local / bin：$ PATH

Answer 2

请尝试py.test --version并查看解释导入位置的输出，包括插件。很可能没有运行您认为正在运行的py.test。

Answer 3

我遇到了这个问题并且发现它是因为一个非常古老的setuptools（Centos6.7上提供的默认版本）

pip list | grep setuptools
setuptools (0.6rc11)

首先升级setuptools

sudo pip install --upgrade setuptools

然后重新安装pytest和pytest-xdist

sudo pip install --upgrade pytest pytest-xdist --force-reinstall

此后pytest能够发现xdist插件。

在pytest-xdist安装之后，Pytest不会识别-n选项

3 个答案: