py.test -n<进程数> => “py.test：error：unrecognized arguments：-n” [英] py.test -n <number of processes> => "py.test: error: unrecognized arguments: -n"

问题描述

我在虚拟环境中使用py.test。

我的相关版本是：

  $ pip freeze | grep test 
 django-pytest == 0.2.0 
 django-webtest == 1.7.7 
 pytest == 2.5.2 
 pytest-cov == 1.6 
 pytest-django == 2.6.2 
 pytest-xdist == 1.10 
 scripttest == 1.3 
  

当我尝试命令：

  $ py.test -n 4 
  

我收到错误：

 用法：py.test [options] [file_or_dir] [file_or_dir] [...] 
 py.test：错误：无法识别的参数：-n 
  

py.test traceconfig命令显示：

  $ py.test  - traceconfig 
 PLUGIN注册：< _pytest.python.FixtureManager实例在0x1091fd320> 
 ============================================ =======测试会话开始====================================== ============== 
 platform darwin  -  Python 2.7.2  -  py-1.4.20  -  pytest-2.5.2  -  / Users / mike / virtualenvs / foodnet / bin / python 
使用：pytest-2.5.2 pylib-1.4.20 
 setuptools注册插件：
 pytest-cov-1.6 at / Users / mike / virtualenvs / foodnet / lib / python2 .7 / site-packages / pytest_cov.pyc 
 pytest-django-2.6.2 at /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/pytest_django/plugin.pyc 
 
主动插件：
 
 cacheprovider：-1 
 helpconfig：/Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/helpconfig.pyc 
 pytestconfig：< _pytest.config.Config对象在0x108da9d50> 
 runner：/Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/runner.pyc 
 unittest：/Users/mike/virtualenvs/foodnet/lib/python2.7 /site-packages/_pytest/unittest.pyc 
 xdist：-1 
断言：/Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/assertion/__init__.pyc 
 pastebin：/Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/pastebin.pyc 
跳过：/Users/mike/virtualenvs/foodnet/lib/python2.7 /site-packages/_pytest/skipping.pyc 
 genscript：/Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/genscript.pyc 
 session：< Session' SRC'> 
 tmpdir：/Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/tmpdir.pyc 
 capture：/Users/mike/virtualenvs/foodnet/lib/python2.7 /site-packages/_pytest/capture.pyc 
 terminalreporter：< _pytest.terminal.TerminalReporter实例在0x1091ebcf8> 
 cache：-1 
 4442026896：< _pytest.config.PytestPluginManager对象在0x108c3f390> 
标记：/Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/mark.pyc 
终端：/Users/mike/virtualenvs/foodnet/lib/python2.7 /site-packages/_pytest/terminal.pyc 
 main：/Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/main.pyc 
 nose：/ Users / mike /virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/nose.pyc 
 python：/Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/python.pyc 
 recwarn：/Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/recwarn.pyc 
 funcmanage：< _pytest.python.FixtureManager实例在0x1091fd320> 
 monkeypatch：/Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/monkeypatch.py​​c 
 resultlog：/Users/mike/virtualenvs/foodnet/lib/python2.7 /site-packages/_pytest/resultlog.pyc 
 cov：/Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/pytest_cov.pyc 
 capturemanager：< _pytest.capture。 CaptureManager实例在0x1091ed710> 
 django：/Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/pytest_django/plugin.pyc 
 pep8：-1 
 junitxml：/ Users / mike / virtualenvs /foodnet/lib/python2.7/site-packages/_pytest/junitxml.pyc 
 doctest：/Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/doctest.pyc 
 pdb：/Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/pdb.pyc 
  

插件：cov，django

我注意到xdist插件在它旁边有一个-1。这是否表示该插件出现错误？

py.test --help不列出xdist参数

解决方案

确定是：

  -p no：xdist 
  

在tox.ini的addopts部分。删除它，并且xdist工作。

I am trying to distribute django tests to multiple processes to speed up test runs.

I am using py.test in a virtual environment.

My relevant versions are:

$ pip freeze | grep test
django-pytest==0.2.0
django-webtest==1.7.7
pytest==2.5.2
pytest-cov==1.6
pytest-django==2.6.2
pytest-xdist==1.10
scripttest==1.3

When I try the command:

$ py.test -n 4

I get the error:

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

py.test traceconfig command shows:

$ py.test --traceconfig
PLUGIN registered: <_pytest.python.FixtureManager instance at 0x1091fd320>
===================================================== test session starts ======================================================
platform darwin -- Python 2.7.2 -- py-1.4.20 -- pytest-2.5.2 --     /Users/mike/virtualenvs/foodnet/bin/python
using: pytest-2.5.2 pylib-1.4.20
setuptools registered plugins:
pytest-cov-1.6 at /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/pytest_cov.pyc
pytest-django-2.6.2 at /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/pytest_django/plugin.pyc

active plugins:

cacheprovider       : -1
helpconfig          : /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/helpconfig.pyc
pytestconfig        : <_pytest.config.Config object at 0x108da9d50>
runner              : /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/runner.pyc
unittest            : /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/unittest.pyc
xdist               : -1
assertion           : /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/assertion/__init__.pyc
pastebin            : /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/pastebin.pyc
skipping            : /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/skipping.pyc
genscript           : /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/genscript.pyc
session             : <Session 'src'>
tmpdir              : /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/tmpdir.pyc
capture             : /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/capture.pyc
terminalreporter    : <_pytest.terminal.TerminalReporter instance at 0x1091ebcf8>
cache               : -1
4442026896          : <_pytest.config.PytestPluginManager object at 0x108c3f390>
mark                : /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/mark.pyc
terminal            : /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/terminal.pyc
main                : /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/main.pyc
nose                : /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/nose.pyc
python              : /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/python.pyc
recwarn             : /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/recwarn.pyc
funcmanage          : <_pytest.python.FixtureManager instance at 0x1091fd320>
monkeypatch         : /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/monkeypatch.pyc
resultlog           : /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/resultlog.pyc
cov                 : /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/pytest_cov.pyc
capturemanager      : <_pytest.capture.CaptureManager instance at 0x1091ed710>
django              : /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/pytest_django/plugin.pyc
pep8                : -1
junitxml            : /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/junitxml.pyc
doctest             : /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/doctest.pyc
pdb                 : /Users/mike/virtualenvs/foodnet/lib/python2.7/site-packages/_pytest/pdb.pyc

plugins: cov, django

I notice that xdist plugin has a -1 next to it. Does this indicate an error from that plugin?

py.test --help does not list the xdist arguments

解决方案

Figured out it was:

-p no:xdist 

in the addopts section in tox.ini. Removed it and xdist worked.

这篇关于py.test -n<进程数> => “py.test：error：unrecognized arguments：-n”的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！