问题描述
使用numpy.testing模块进行单元测试时，我遇到了一个非常奇怪的错误.我正在VM中运行iPython笔记本.在我的代码中，我进行了一个测试，将我的输出与R中的输出进行比较.这需要我像下面这样加载rpy2模块:
I've run into a rather strange error when doing unit testing with the numpy.testing module. I'm running an iPython notebook in a VM. In my code, I have one test where I compare my output to that in R. This requires me to load the rpy2 modules like so:
import rpy2.robjects as robjects
from rpy2.robjects.packages import importr
fastclime = importr('fastclime')
grdevices = importr('grDevices')
但是，当我运行! py.test时，出现以下错误:
However when I run ! py.test, I get the following error:
===================================错误=========== ========================
==================================== ERRORS ====================================
_____________________ ERROR collecting test_fastclime_R.py _____________________
test_fastclime_R.py:6: in <module>
import rpy2.robjects as robjects
../../anaconda/lib/python2.7/site-packages/rpy2/robjects/__init__.py:15: in <module>
import rpy2.rinterface as rinterface
../../anaconda/lib/python2.7/site-packages/rpy2/rinterface/__init__.py:101: in <module>
from rpy2.rinterface._rinterface import *
E ImportError: /home/bitnami/anaconda/bin/../lib/libreadline.so.6: undefined symbol: PC
====================== 10 passed, 1 error in 0.19 seconds ======================
我怀疑这与某些未链接到我的工作目录的环境变量有关，但是我不知道如何解决它.任何建议，不胜感激！谢谢！
I suspect that this has something to do with some environment variable not being linked to my working directory, but I have no idea how to fix it. Any suggestions are greatly appreciated! Thank you!
推荐答案
解决方案是
1)如果创建了先前版本，则删除__pycache__目录
1) delete __pycache__ directory if a previous version was created
2)在命令行中的anaconda中安装readline:conda install -c asmeurer readline
2) Install readline in anaconda in the command line: conda install -c asmeurer readline
3).py文件中包含import readline
3) Inside the .py file include import readline
这篇关于将pypy2与numpy.testing一起使用时的ImportError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！