我如何升级numpy？

Question

当我使用brew安装OpenCV时,每当我运行此命令进行测试时,我都会遇到此问题 brew

RuntimeError: module compiled against API version 9 but this version of numpy is 6
Traceback (most recent call last):
  File "<string>", line 1, in <module>
ImportError: numpy.core.multiarray failed to import

我试图升级numpy,但这很令人困惑

>>> import numpy
>>> print numpy.__version__
1.6.1

当我运行brew来升级numpy时,我遇到了这个问题.

brew install -u numpy
Warning: numpy-1.9.1 already installed

当我卸载它

sudo pip install numpy
Requirement already satisfied (use --upgrade to upgrade): numpy in ./anaconda/lib/python2.7/site-packages

我已经关注了这个帖子并从我的mac中删除了anaconda.

pip install numpy
Requirement already satisfied (use --upgrade to upgrade): numpy in /Library/Python/2.7/site-packages

但一切都没有改变.如何将numpy版本链接到opencv？

Answer 1

因为我们在系统中有两个numpy.一个是由brew安装,第二个是由pip安装.因此,为了解决这个问题,我们需要删除一个并使用opencv的默认numpy安装.

检查路径

import numpy
print numpy.__path__

并使用手动删除它 rm

Answer 2

当您的系统上有两个numpy版本时,您提到的错误就会发生.正如您所提到的,您导入的numpy版本仍未升级,因为您尝试通过pip升级它(它将升级版本存在'/Library/Python/2.7/site-packages').但是,Python仍会从 '/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/numpy'预安装的软件包所在的位置加载 软件包.要升级该版本,您必须使用easy_install.解决此问题的另一种方法是使用virtualenv和设置具有所需要求的新环境.

Answer 3

当你已经有一个旧版本的numpy时,请使用:
__CODE__.

如果仍然无效,请尝试:
__CODE__

Answer 4

仅供参考,

当您使用或导入Tensorflow时,可能会发生类似的错误(由numpy引起):

RuntimeError: module compiled against API version 0xa but this version of numpy is 0x9
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/__init__.py", line 23, in <module>
    from tensorflow.python import *
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/__init__.py", line 60, in <module>
    raise ImportError(msg)
ImportError: Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/__init__.py", line 49, in <module>
    from tensorflow.python import pywrap_tensorflow
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/pywrap_tensorflow.py", line 28, in <module>
    _pywrap_tensorflow = swig_import_helper()
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/pywrap_tensorflow.py", line 24, in swig_import_helper
    _mod = imp.load_module('_pywrap_tensorflow', fp, pathname, description)
ImportError: numpy.core.multiarray failed to import


Error importing tensorflow.  Unless you are using bazel,
you should not try to import tensorflow from its source directory;
please exit the tensorflow source tree, and relaunch your python interpreter
from there.

我遵循了Elmira和Drew的解决方案sudo easy_install numpy,并且它已经工作了!

sudo easy_install numpy
Searching for numpy
Best match: numpy 1.11.3
Removing numpy 1.8.2 from easy-install.pth file
Adding numpy 1.11.3 to easy-install.pth file

Using /usr/local/lib/python2.7/dist-packages
Processing dependencies for numpy
Finished processing dependencies for numpy

之后,我可以使用没有错误的Tensorflow.

Answer 5

更新 numpy

对于蟒蛇 2

pip install numpy --upgrade

您还需要为更新版本的 numpy 升级您的表。所以，

pip install tables --upgrade

对于蟒蛇 3

pip3 install numpy --upgrade

同样，python3 的表：-

pip3 install tables --upgrade

笔记：

您需要检查您使用的是哪个 python 版本。pip for python 2.7+ 或 pip3 for python 3+