Python Numpy从1.6更新到1.8

问题描述

我已经安装了numpy 1.8.但是，当我打印numpy.__version__时，它表示1.6.

I have installed numpy 1.8. But when I do print numpy.__version__ it says 1.6.

要使python意识到numpy在哪里，我必须更改什么?在Mac(10.9)上工作.我使用的是python 2.7.6.

What do I have to change to get python to realize where numpy is? Working on a Mac (10.9). I'm using python 2.7.6.

我尝试删除所有版本的numpy.我没有pip卸载numpy.然后我输入:

I've tried to delete all my versions of numpy. I did pip uninstall numpy. And then I typed:

python 导入numpy 打印numpy.版本

python import numpy print numpy.version

并打印出1.6.2

我显然不能删除numpy.

I can't delete numpy apparently.

推荐答案

我在Mac OS X 10.9.4上运行Python 2.7.5，这似乎是Macintosh出厂安装版本中某种怪异的错误.的Python正在处理升级的软件包安装.

I am running Python 2.7.5 on Mac OS X 10.9.4, and this appears to be some kind of weird bug in how the Macintosh factory-installed version of Python is handling upgraded package installations.

就我而言，当我这样做:

In my case, when I do:

sudo pip uninstall numpy

它删除安装在下面的numpy版本

it removes the version of numpy installed under

/Library/Python/2.7/site-packages

但是，这并不意味着numpy已从系统中完全删除！在以下位置还安装了一些Python软件包的第二组备份"版本:

However, this does not mean that numpy is fully removed from the system! There are a second set of "backup" versions of several Python packages installed also at:

/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python

当我使用Apple随OS X系统附带的/usr/bin/easy_install实用程序安装numpy时，将numpy的最新版本(当前为1.9.0，发布此信息)加载到Library/Python/2.7/site-packages中，就像一个期望，并且它正确地在模块加载路径中的numpy的"OS X系统默认"版本之前，以便当我在Python中执行import numpy时加载最新版本的numpy.但是-这是真正的怪异，显然是错误的行为！-当我卸载numpy时，而是使用pip或执行以下操作来重新安装:

When I install numpy using the /usr/bin/easy_install utility that Apple shipped with the OS X system, the latest version (currently at 1.9.0, as of this posting) of numpy is loaded into Library/Python/2.7/site-packages, just as one would expect, and it correctly precedes the "OS X system default" version of numpy in the module load path so that the latest version of numpy is loaded when I do import numpy in Python. However--and this is the really weird, apparently buggy behavior!--when I uninstall numpy, and instead reinstall using either pip, or by doing:

sudo python setup.py install

在直接从 sourceforge 下载的.tar.gz发行版中，升级后的安装不会在Python模块的加载路径中似乎优先，即使它也安装在/Library/Python/2.7/site-packages下！

on a .tar.gz distribution downloaded directly from sourceforge, the upgraded installation does not appear to take precedence in the Python module load path, even though it is also installed under /Library/Python/2.7/site-packages!

无论如何，要解决此问题(或更确切地说，至少在Max OS X上，我应该说要解决该错误)，请按照以下步骤操作:

Anyway, to fix the problem (or rather, I should probably say, to work around the bug, at least on Max OS X), follow this procedure:

1. 使用您选择的方法从/Library/Python/2.7/site-packages卸载numpy软件包(pip uninstall numpy似乎对我有用)
2. 验证/Library/Python/2.7/site-packages
下确实不再有任何numpy软件包
3. 使用出厂随附的/usr/bin/easy_install重新安装numpy.不要使用任何其他替代方法，至少不要将numpy与Apple出厂安装的Python 2.7版本一起使用

1. Uninstall the numpy package from /Library/Python/2.7/site-packages using the method of your choice (pip uninstall numpy appeared to work for me)
2. Verify that there is indeed no longer any numpy package still remaining under /Library/Python/2.7/site-packages
3. Reinstall numpy using the factory-included /usr/bin/easy_install. Do not use any other alternative method, at least not if you want to use numpy with the Apple factory-installed version of Python 2.7

或者，使用已经完全提到过的其他评论者之一，使用完全不同的Python发行版(例如Canopy或Anaconda)也应该起作用.

Alternatively, using a completely different distribution of Python (e.g., Canopy or Anaconda), as one of the other commenters already mentioned, should also work as well.

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