问题 I have tried installing pymesh on both Mac OS and Windows, by downloading the source and installing using python setup.py install (as described in https://github.com/qnzhou/PyMesh). In both cases, when I then ran the test code: python -c "import pymesh; pymesh.test()" , I get an ImportError. E.g., in Windows, I get the following traceback: Traceback (most recent call last): File "<string>", line 1, in <module> File "C:\Program Files\Anaconda2\lib\site-packages\pymesh2-0.1.14-py2.7-win-amd64