ImportError: cannot import name add_newdocs

问题

I use Windows8.1 and python 2.7 and I installed the numpy1.8. However, whenever I wanna import numpy it shows the following error :ImportError: cannot import name add_newdocs.

>>> import numpy
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Python27\lib\site-packages\numpy\__init__.py", line 153, in <module>
    from . import add_newdocs
ImportError: cannot import name add_newdocs

I have checked with C:\Python27\Lib\site-packages\numpy the add_newdocs does exist.

Can somebody tell me how to fix it?

回答1:

just reinstall if your use anaconda conda install numpy I resolve it by doing that

回答2:

I had a similar problem to this. First make sure that you can at least import numpy in the terminal python shell without the import error. If this is not the case, then it could be that a complete reinstall of numpy is necessary (or maybe as some other posts have said your pyc file for add_newdocs went "stale", needs to be deleted and will automatically be recreated and thus problem will be solved)

Or. The import does work in terminal and, (in my one experience with this bug) it was a problem of file names in the same folder. Moving the file that imported numpy out of that folder solved the issue.

Or its none of the above and in that case I'm out of ideas

回答3:

in where you save the python ...\Lib\site-packages
delete this folder "numpy" in the folder "site-packages"
then in the command line, under the path where you save the python.exe

in my case: input "cd /d D:\anaconda" in the command line, press Enter

and then input "pip install -U numpy" again, press Enter
after searching for 3 hours, finally find this way works for me, sincerely wish this could help you.

回答4:

I had this problem after upgrading Ubuntu. I solved it by updating numpy:

sudo pip install numpy --upgrade

回答5:

I encountered the same error; in my case maybe because there were two python directories in the path (there's normal python and an anaconda python) - both have numpy. The former was added via

sys.path.insert(0,'/usr/local/lib/python2.7/dist-packages')

Replacing this with:

site.addsitedir('/usr/local/lib/python2.7/dist-packages')

solved the problem for some reason.

I can't reproduce the original "add_newdocs" error now, though. As written here there are issues with ...insert(0,..), but ..insert(1,..) also gives errors...