Tox 总是需要 30 秒才能运行

Question

Tox 几周前运行ning 还不错，但我回到了一个使用 tox 进行运行测试的项目，现在它总是需要 30 秒才能运行。我认为这可能是对项目所做更改的问题，但我在其他项目中尝试过 tox（甚至是 hello world 测试），它们都需要 30 秒才能运行。

$ time tox
GLOB sdist-make: /private/tmp/dependency_manager/setup.py
py27 inst-nodeps: /private/tmp/dependency_manager/.tox/dist/dependencyManager-1.3.6.zip
py27 installed: boto==2.41.0,boto3==1.3.1,botocore==1.4.33,dependencyManager==1.3.6,docutils==0.12,funcsigs==1.0.2,futures==3.0.5,jmespath==0.9.0,mock==2.0.0,nose2==0.6.5,pbr==1.10.0,python-dateutil==2.5.3,six==1.10.0,troposphere==1.6.0
py27 runtests: PYTHONHASHSEED='3107006541'
py27 runtests: commands[0] | nose2
/private/tmp/dependency_manager/.tox/py27/lib/python2.7/site-packages/troposphere/dynamodb.py:10: UserWarning: This module is outdated and will be replaced with troposphere.dynamodb2. Please see the README for instructions on how to prepare for this change.
  warnings.warn("This module is outdated and will be replaced with "
.....................
----------------------------------------------------------------------
Ran 21 tests in 0.020s

OK
_____________________________________________________________________________________________ summary ______________________________________________________________________________________________
  py27: commands succeeded
  congratulations :)
tox  1,67s user 0,43s system 6% cpu 32,192 total

现在是一个完全不同的项目。

$ time tox
py27 recreate: /Users/jose.armesto/dev/dredd/.tox/py27
py27 installdeps: nose, mock, coverage >= 3.3
py27 installed: coverage==4.1,funcsigs==1.0.2,mock==2.0.0,nose==1.3.7,pbr==1.10.0,six==1.10.0
py27 runtests: PYTHONHASHSEED='1261821084'
py27 runtests: commands[0] | nosetests --with-coverage --cover-branches
....
Name                  Stmts   Miss Branch BrPart  Cover
-------------------------------------------------------
funcsigs.py             432    357    194      0    12%
funcsigs/version.py       1      0      0      0   100%
mock.py                   4      0      0      0   100%
mock/mock.py           1373    987    578     44    23%
pbr.py                    0      0      0      0   100%
pbr/version.py          218    116     66     16    42%
six.py                  444    218    134     21    46%
dredd.py                  0      0      0      0   100%
dredd/discovery.py        0      0      0      0   100%
dredd/dredd.py           28      0     18      1    98%
dredd/instance.py         9      1      0      0    89%
-------------------------------------------------------
TOTAL                  2509   1679    990     82    28%
----------------------------------------------------------------------
Ran 4 tests in 0.026s

OK
_____________________________________________________________________________________________ summary ______________________________________________________________________________________________
  py27: commands succeeded
  congratulations :)
tox  3,67s user 0,87s system 12% cpu 37,636 total

好像是30秒超时，然后运行测试正常。我尝试使用 ls -lah 作为命令和配置文件 tox，我得到了这些结果 http://pastebin.com/EtQh3Xhq.

我运行宁 OSX Yosemite 10.10.5 Python 和 tox 版本

$ python --version
Python 2.7.10

$ tox --version
2.3.1 imported from /Library/Python/2.7/site-packages/tox/__init__.pyc

我尝试过有和没有 setup.py 的项目，有或多或少的环境，我总是得到同样缓慢的时间。有人知道发生了什么事以及如何解决吗？

Answer 1

删除 $HOME/.tox 中安装的旧包解决了这个问题。似乎 30 秒是由于 boto 超时，其中一些包使用了 boto。虽然不知道为什么会这样。

Tox 总是需要 30 秒才能运行

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Tox 总是需要 30 秒才能 运行

Tox takes always 30 seconds to run

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Tox 总是需要 30 秒才能运行