pytest 3.0.7导入熊猫时出错2.20.1

任何人都有同样的问题，我运行pytest与以下错误。我安装环境的方式是从https://www.python.org/downloads/ 下载python并安装PKG文件创建req.file和点子安装-r req.filepytest 3.0.7导入熊猫时出错2.20.1

os: x el capitan 
python:3.6.1 
pytest:3.0.7 
pandas:2.20.2 

req.file 
psutil==4.0.0 
pandas==0.20.2 
numpy==1.10.4 
py==1.4.31 
pytest==3.0.7 
pytest-cov==2.2.1 
pytest-mock==0.10.1 

script.py 
import pandas as pd 


/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/pandas/__init__.py:31: in <module> 
    "extensions first.".format(module)) 
E ImportError: C extension: umpy.core.multiarray failed to import not built. If you want to import pandas from the source directory, you may need to run 'python setup.py build_ext --inplace' to build the C extensions first. 
-------------------------------------------------------------------------------- Captured stderr --------------------------------------------------------------------------------- 
RuntimeError: module compiled against API version 0xb but this version of numpy is 0xa

来源

2017-06-16 jacobcan118

因此，我试图安装包是使用虚拟ENV设置启动python项目并重新安装所有软件包以确保项目环境与我的本地隔离。所以设置虚拟环境，然后没有问题安装熊猫了

$pip3 install virtualenv 
$virtualenv --python=/usr/bin/python3.6 <path/to/new/project/>

来源

2017-08-10 19:54:55 jacobcan118

pytest 3.0.7导入熊猫时出错2.20.1

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