blocks|key|3145013|text|因此，首先，您必须下载/安装更新版本的NumPy。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3145014|或者简单地使用pip|offset|length|style|CODE|3145015|python3+-m+pip+install+numpy|code-block|syntax|javascript|3145016|entityMap^0|0|7|3|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@$D|Q|E|R|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|S|8|@]|9|@]|A|$K|L]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

<a href="http://sourceforge.net/projects/numpy/files//NumPy/1.5.0/NOTES.txt/view" rel="noreferrer">Support for Python 3 was added in NumPy version 1.5.0</a>, so to begin with, you must download/install a newer version of NumPy.
Or simply using <code>pip</code>:
<pre><code>python3 -m pip install numpy
</code></pre>

blocks|key|2930339|text|您已经为Python+2.6安装了Numpy版本-因此您只能在Python+2.6中使用它。你必须安装Numpy+for+Python3.x，例如：http://sourceforge.net/projects/numpy/files/NumPy/1.6.1/numpy-1.6.1-win32-superpack-python3.2.exe/download|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2930340|有关不同版本的概述，请参阅此处：http://sourceforge.net/projects/numpy/files/NumPy/1.6.1/|2930341|entityMap|0|LINK|mutability|MUTABLE|url|http://sourceforge.net/projects/numpy/files/NumPy/1.6.1/numpy-1.6.1-win32-superpack-python3.2.exe/download|1|http://sourceforge.net/projects/numpy/files/NumPy/1.6.1/^0|22|2Y|0|0|G|1K|1|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@$A|Q|B|R|1|S]]|C|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]]|C|$]]|$1|F|3|-4|5|6|7|X|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]|N|$5|I|J|K|C|$L|O]]]]

You installed the Numpy Version for Python 2.6 - so you can only use it with Python 2.6. You have to install Numpy for Python 3.x, e.g. that one: <a href="http://sourceforge.net/projects/numpy/files/NumPy/1.6.1/numpy-1.6.1-win32-superpack-python3.2.exe/download" rel="noreferrer">http://sourceforge.net/projects/numpy/files/NumPy/1.6.1/numpy-1.6.1-win32-superpack-python3.2.exe/download</a>

For an overview of the different versions, see here: <a href="http://sourceforge.net/projects/numpy/files/NumPy/1.6.1/" rel="noreferrer">http://sourceforge.net/projects/numpy/files/NumPy/1.6.1/</a>

blocks|key|253689|text|在我安装Numpy之后，我也遇到了这个问题。我只需关闭Python解释器并重新打开即可解决此问题。如果其他人有这个问题，可以尝试一下，也许可以节省几分钟！|type|unstyled|depth|inlineStyleRanges|entityRanges|data|253690|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I had this problem too after I installed Numpy. I solved it by just closing the Python interpreter and reopening. It may be something else to try if anyone else has this problem, perhaps it will save a few minutes!

blocks|key|253700|text|我觉得numpy的安装有问题。以下是我解决这个问题的步骤。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|253701|请转到此网站下载正确的软件包：http://sourceforge.net/projects/numpy/files/|offset|length|253702|unzip+package|unordered-list-item|253703|转到document+|ordered-list-item|253704|使用以下命令安装numpy:+numpy|253705|253706|253707|entityMap|0|LINK|mutability|MUTABLE|url|http://sourceforge.net/projects/numpy/files/^0|0|F|18|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Y|8|@]|9|@$D|Z|E|10|1|11]]|A|$]]|$1|F|3|G|5|H|7|12|8|@]|9|@]|A|$]]|$1|I|3|J|5|K|7|13|8|@]|9|@]|A|$]]|$1|L|3|M|5|K|7|14|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|15|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|16|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|Q|$R|$5|S|T|U|A|$V|W]]]]

I think there are something wrong with the installation of numpy.
Here are my steps to solve this problem.

<ol>
<li>go to this website to download correct package: <a href="http://sourceforge.net/projects/numpy/files/">http://sourceforge.net/projects/numpy/files/</a></li>
<li>unzip the package</li>
<li>go to the document </li>
<li>use this command to install numpy: <code>python setup.py install</code></li>
</ol>

blocks|key|250388|text|我也有这个问题(导入错误:没有名为numpy的模块)，但在我的例子中，这是我在Mac中的PATH变量的问题。我之前对我的.bash_profile文件进行了编辑，导致我的Anaconda安装(和其他)的路径没有被正确添加。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|250389|只需在列表中添加此注释，以防其他像我一样的人带着相同的错误信息来到此页面，并遇到与我相同的问题。|250390|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I also had this problem (Import Error: No module named numpy) but in my case it was a problem with my PATH variables in Mac OS X. I had made an earlier edit to my .bash_profile file that caused the paths for my Anaconda installation (and others) to not be added properly. 

Just adding this comment to the list here in case other people like me come to this page with the same error message and have the same problem as I had.

blocks|key|3145155|text|您可以简单地使用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3145156|pip+install+numpy|code-block|syntax|javascript|3145157|或者对于python3，使用|3145158|pip3+install+numpy|3145159|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

You can simply use 

<pre><code>pip install numpy
</code></pre>

Or for python3, use

<pre><code>pip3 install numpy
</code></pre>

blocks|key|252278|text|这是numpy版本的问题，请查看$CAFFE_ROOT/python/requirement.txt。然后执行:+sudo+apt-get+install+python-numpy>=x.x.x，这个问题就解决了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|252279|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

this is the problem of the numpy's version, please check out $CAFFE_ROOT/python/requirement.txt. Then exec: sudo apt-get install python-numpy>=x.x.x, this problem will be sloved.

blocks|key|248754|text|我不确定为什么我会得到这个错误，但是pip3+uninstall+numpy和pip3+install+numpy为我解决了这个问题。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|248755|entityMap^0|I|K|13|I|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

I'm not sure exactly why I was getting the error, but <code>pip3 uninstall numpy</code> then <code>pip3 install numpy</code> resolved the issue for me.

blocks|key|2930557|text|在为机器学习设置python时，我在使用phyton+3时也遇到了上述问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2930558|我遵循了以下步骤：|2930559|安装python-2.7.13.msi|2930560|·设置PATH=C:\Python27|2930561|·设置PATH=C:\Python27\Scripts|2930562|转到http://www.lfd.uci.edu/~gohlke/pythonlibs/#scipy|offset|length|2930563|下载：-+numpy-1.13.1%2Bmkl-cp27-cp27m-win32.whl|2930564|++++++++++--scipy-0.18.0-cp27-cp27m-win32.whl+|code-block|syntax|javascript|2930565|安装numpy:+pip+install+numpy-1.13.1%2Bmkl-cp27-cp27m-win32.whl|2930566|安装scipy:+pip+install+scipy-0.18.0-cp27-cp27m-win32.whl|2930567|您可以使用以下cmds测试正确性：-|2930568|>>>+import+numpy
>>>+import+scipy
>>>+import+sklearn
>>>+numpy.version.version
'1.13.1'
>>>+scipy.version.version
'0.19.1'
>>>|2930569|entityMap|0|LINK|mutability|MUTABLE|url|http://www.lfd.uci.edu/~gohlke/pythonlibs/#scipy^0|0|0|0|0|0|2|1C|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1A|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1B|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|1C|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|1D|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|1E|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|1F|8|@]|9|@$L|1G|M|1H|1|1I]]|A|$]]|$1|N|3|O|5|6|7|1J|8|@]|9|@]|A|$]]|$1|P|3|Q|5|R|7|1K|8|@]|9|@]|A|$S|T]]|$1|U|3|V|5|6|7|1L|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|1M|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|1N|8|@]|9|@]|A|$]]|$1|10|3|11|5|R|7|1O|8|@]|9|@]|A|$S|T]]|$1|12|3|-4|5|6|7|1P|8|@]|9|@]|A|$]]]|13|$14|$5|15|16|17|A|$18|19]]]]

I too faced the above problem with phyton 3 while setting up python for machine learning.

I followed the below steps :-

Install python-2.7.13.msi

• set PATH=C:\Python27

• set PATH=C:\Python27\Scripts

Go to <a href="http://www.lfd.uci.edu/~gohlke/pythonlibs/#scipy" rel="noreferrer">http://www.lfd.uci.edu/~gohlke/pythonlibs/#scipy</a>

Downloaded:- -- numpy-1.13.1+mkl-cp27-cp27m-win32.whl

<pre><code> --scipy-0.18.0-cp27-cp27m-win32.whl 
</code></pre>

Installing numpy:
pip install numpy-1.13.1+mkl-cp27-cp27m-win32.whl

Installing scipy:
 pip install scipy-0.18.0-cp27-cp27m-win32.whl

You can test the correctness using below cmds:-

<pre><code>&gt;&gt;&gt; import numpy
&gt;&gt;&gt; import scipy
&gt;&gt;&gt; import sklearn
&gt;&gt;&gt; numpy.version.version
'1.13.1'
&gt;&gt;&gt; scipy.version.version
'0.19.1'
&gt;&gt;&gt;
</code></pre>

blocks|key|2930598|text|用于通过Anaconda安装NumPy+(使用以下命令)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2930599|2930600|conda+install+-c+conda-forge+numpy|unordered-list-item|2930601|conda+install+-c+conda-forge/label/broken+|2930602|2930603|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|L|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|M|8|@]|9|@]|A|$]]|$1|F|3|G|5|E|7|N|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|P|8|@]|9|@]|A|$]]]|J|$]]

For installing NumPy via Anaconda(use below commands): 

<ul>
<li>conda install -c conda-forge numpy</li>
<li>conda install -c conda-forge/label/broken numpy</li>
</ul>

blocks|key|3145309|text|在Installing上安装Numpy|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|3145310|3145311|使用管理员权限打开窗口命令提示符(快速方法:按Windows键。键入"cmd“。右击建议的“命令提示符”并选择“使用"cd”(更改目录)命令以Administrator)|ordered-list-item|3145312|Navigate身份运行到Python安装目录的脚本文件夹。例如"cd+C:\Program+Files+(x86)\PythonXX\Scripts"|3145313|3145314|这可能是:+C:\Users\AppData\Local\Programs\Python\PythonXX\Scripts或C:\Program+Files+(x86)\PythonXX\Scripts+(其中XX表示Python版本号)，具体取决于它的安装位置。使用Windows资源管理器查找文件夹，然后将地址从资源管理器地址栏粘贴或键入到命令提示符中可能更容易。|3145315|3145316|输入以下命令："pip+install+numpy“。|3145317|3145318|下载并安装程序包时，您应该会看到类似以下文本的内容。|3145319|Collecting+numpy
++Downloading+numpy-1.13.3-2-cp27-none-win32.whl+(6.7MB)++
++100%25+%7C################################%7C+6.7MB+112kB/s
Installing+collected+packages:+numpy
Successfully+installed+numpy-1.13.3|code-block|syntax|javascript|3145320|entityMap^0|0|B|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|11|8|@$9|12|A|13|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|14|8|@]|D|@]|E|$]]|$1|G|3|H|5|I|7|15|8|@]|D|@]|E|$]]|$1|J|3|K|5|I|7|16|8|@]|D|@]|E|$]]|$1|L|3|-4|5|6|7|17|8|@]|D|@]|E|$]]|$1|M|3|N|5|6|7|18|8|@]|D|@]|E|$]]|$1|O|3|-4|5|6|7|19|8|@]|D|@]|E|$]]|$1|P|3|Q|5|I|7|1A|8|@]|D|@]|E|$]]|$1|R|3|-4|5|6|7|1B|8|@]|D|@]|E|$]]|$1|S|3|T|5|6|7|1C|8|@]|D|@]|E|$]]|$1|U|3|V|5|W|7|1D|8|@]|D|@]|E|$X|Y]]|$1|Z|3|-4|5|6|7|1E|8|@]|D|@]|E|$]]]|10|$]]

Installing Numpy on Windows

<ol>
<li>Open Windows command prompt with administrator privileges (quick method: Press the Windows key. Type "cmd". Right-click on the
suggested "Command Prompt" and select "Run as Administrator)</li>
<li>Navigate to the Python installation directory's Scripts folder using the "cd" (change directory) command. e.g. "cd C:\Program Files (x86)\PythonXX\Scripts"</li>
</ol>

This might be: C:\Users\\AppData\Local\Programs\Python\PythonXX\Scripts or C:\Program Files (x86)\PythonXX\Scripts (where XX represents the Python version number), depending on where it was installed. It may be easier to find the folder using Windows explorer, and then paste or type the address from the Explorer address bar into the command prompt.

<ol start="3">
<li>Enter the following command: "pip install numpy". </li>
</ol>

You should see something similar to the following text appear as the package is downloaded and installed.

<pre><code>Collecting numpy
 Downloading numpy-1.13.3-2-cp27-none-win32.whl (6.7MB) 
 100% |################################| 6.7MB 112kB/s
Installing collected packages: numpy
Successfully installed numpy-1.13.3
</code></pre>

blocks|key|252337|text|那些正在使用xonsh的人，请使用xpip+install+numpy。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|252338|entityMap^0|6|5|H|I|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

Those who are using <code>xonsh</code>, do <code>xpip install numpy</code>.

blocks|key|252345|text|import+numpy+as+np
ImportError:+No+module+named+numpy+|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|252346|即使我知道numpy已经安装，并且尝试了上面所有的建议都没有成功，我还是得到了这个。对我来说，修复方法是将作为np删除，并直接引用模块。(Centos上的python+3.4.8+)。|unstyled|offset|length|style|BOLD|252347|import+numpy
DataTwo=numpy.stack((OutputListUnixTwo))...|252348|entityMap^0|0|1H|4|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|P|8|@$G|Q|H|R|I|J]]|9|@]|A|$]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$B|C]]|$1|M|3|-4|5|F|7|T|8|@]|9|@]|A|$]]]|N|$]]

<pre><code>import numpy as np
ImportError: No module named numpy 
</code></pre>

I got this even though I knew numpy was installed and unsuccessfully tried all the advice above. The fix for me was to remove the as np and directly refer to modules . (python 3.4.8 on Centos)
.

<pre><code>import numpy
DataTwo=numpy.stack((OutputListUnixTwo))...
</code></pre>

blocks|key|250525|text|在尝试了来自不同网站的许多建议和类似的问题后，对我起作用的是卸载所有Python的东西，只重新安装蟒蛇(参见https://stackoverflow.com/a/38330088/1083292)|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|250526|我之前安装的Python不仅是多余的，而且还给我带来了麻烦。|250527|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/38330088/1083292^0|1I|18|0|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]]|C|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|C|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]]]

After trying many suggestions from various sites and similar questions, what worked for me was to uninstall all Python stuff and reinstall Anaconda only (see <a href="https://stackoverflow.com/a/38330088/1083292">https://stackoverflow.com/a/38330088/1083292</a>)

The previous Python installation I had was not only redundant but only caused me trouble.

blocks|key|3145420|text|我已经通过pip和conda在相同的环境中安装了numpy，简单地删除和重新安装它们都是不够的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3145421|：这两个我都得重新安装。|3145422|我不知道为什么突然发生了，但解决方案是|3145423|pip+uninstall+numpy

conda+uninstall+numpy|code-block|syntax|javascript|3145424|从conda卸载也删除了torch和torchvision。|offset|length|style|CODE|3145425|然后|3145426|conda+install+pytorch-cpu+torchvision-cpu+-c+pytorch|3145427|和|3145428|pip+install+numpy|3145429|这为我解决了这个问题。|3145430|entityMap^0|0|0|0|0|C|5|I|B|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|13|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|14|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|15|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|16|8|@$M|17|N|18|O|P]|$M|19|N|1A|O|P]]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1B|8|@]|9|@]|A|$]]|$1|S|3|T|5|H|7|1C|8|@]|9|@]|A|$I|J]]|$1|U|3|V|5|6|7|1D|8|@]|9|@]|A|$]]|$1|W|3|X|5|H|7|1E|8|@]|9|@]|A|$I|J]]|$1|Y|3|Z|5|6|7|1F|8|@]|9|@]|A|$]]|$1|10|3|-4|5|6|7|1G|8|@]|9|@]|A|$]]]|11|$]]

I had numpy installed on the same environment both by pip and by conda, and simply removing and reinstalling either was not enough.

I had to reinstall both.

I don't know why it suddenly happened, but the solution was

<pre><code>pip uninstall numpy

conda uninstall numpy
</code></pre>

uninstalling from conda also removed <code>torch</code> and <code>torchvision</code>.

then

<pre><code>conda install pytorch-cpu torchvision-cpu -c pytorch
</code></pre>

and

<pre><code>pip install numpy
</code></pre>

this resolved the issue for me.

blocks|key|250557|text|面临同样的问题|type|unstyled|depth|inlineStyleRanges|entityRanges|data|250558|ImportError:+No+module+named+numpy|code-block|syntax|javascript|250559|所以，在我们的例子中(我们使用的是+pip+和python2.7)，解决方案是SPLIT+pip+install命令：|offset|length|style|BOLD|250560|从…|250561|RUN+pip+install+numpy+scipy+pandas+sklearn|250562|至|250563|RUN+pip+install+numpy+scipy
RUN+pip+install+pandas+sklearn|250564|在这里找到解决方案：https://github.com/pandas-dev/pandas/issues/25193，它是pandas+v0.24.0的相关最新更新|250565|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/pandas-dev/pandas/issues/25193^0|0|0|H|5|13|5|0|0|0|0|0|A|1D|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|15|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|16|8|@$I|17|J|18|K|L]|$I|19|J|1A|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|1B|8|@]|9|@]|A|$]]|$1|O|3|P|5|D|7|1C|8|@]|9|@]|A|$E|F]]|$1|Q|3|R|5|6|7|1D|8|@]|9|@]|A|$]]|$1|S|3|T|5|D|7|1E|8|@]|9|@]|A|$E|F]]|$1|U|3|V|5|6|7|1F|8|@]|9|@$I|1G|J|1H|1|1I]]|A|$]]|$1|W|3|-4|5|6|7|1J|8|@]|9|@]|A|$]]]|X|$Y|$5|Z|10|11|A|$12|13]]]]

Faced with same issue

<pre><code>ImportError: No module named numpy
</code></pre>

So, in our case (we are use PIP and python 2.7) the solution was SPLIT pip install commands : 

From 

<pre><code>RUN pip install numpy scipy pandas sklearn
</code></pre>

TO

<pre><code>RUN pip install numpy scipy
RUN pip install pandas sklearn
</code></pre>

Solution found here : <a href="https://github.com/pandas-dev/pandas/issues/25193" rel="noreferrer">https://github.com/pandas-dev/pandas/issues/25193</a>, it's related latest update of pandas to v0.24.0

blocks|key|252425|text|对于那些使用python+2.7的人，应该尝试一下：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|252426|apt-get+install+-y+python-numpy|code-block|syntax|javascript|252427|而不是pip安装numpy|252428|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

For those using python 2.7, should try:

<pre><code>apt-get install -y python-numpy
</code></pre>

Instead of pip install numpy

blocks|key|252444|text|您可以尝试：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|252445|252446|+py+-3+-m+pip安装anyPackageName|blockquote|252447|252448|252449|在您的案例中使用：|252450|252451|+py+-3+-m+pip+install+numpy|252452|252453|252454|谢谢|252455|entityMap^0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|T|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|U|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|V|8|@]|9|@]|A|$]]|$1|G|3|-4|5|6|7|W|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|X|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|K|3|L|5|E|7|Z|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|10|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|11|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|12|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|13|8|@]|9|@]|A|$]]]|R|$]]

You can try:

<blockquote>
 py -3 -m pip install anyPackageName
</blockquote>

In your case use:

<blockquote>
 py -3 -m pip install numpy
</blockquote>

Thanks

blocks|key|2930868|text|如果在重新安装python之前就能正常工作，就可以解决这个问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2930869|我刚刚使用：How+can+I+install+a+previous+version+of+Python+3+in+macOS+using+homebrew?解决了这个问题|offset|length|2930870|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/51125013/how-can-i-install-a-previous-version-of-python-3-in-macos-using-homebrew^0|0|6|21|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

If it was working before reinstalling python would solve the issue. 

I just hit and resolved this issue using:
<a href="https://stackoverflow.com/questions/51125013/how-can-i-install-a-previous-version-of-python-3-in-macos-using-homebrew">How can I install a previous version of Python 3 in macOS using homebrew?</a>

blocks|key|252482|text|您应该尝试使用以下方法之一来安装numpy：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|252483|pip+install+numpy
pip2+install+numpy
pip3+install+numpy|code-block|syntax|javascript|252484|出于某种原因，在我的例子中，pip2解决了这个问题|252485|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

You should try to install numpy using one of those:

<pre><code>pip install numpy
pip2 install numpy
pip3 install numpy
</code></pre>

For some reason in my case pip2 solved the problem

blocks|key|3145632|text|对我来说，在windows10上，我无意中安装了多个python版本(一个来自PyCharm集成开发环境，另一个来自windows+store)。我从windows应用商店卸载了一个，为了彻底起见，我卸载了numpy+pip+uninstall+numpy，然后再次安装了pip+install+numpy。它可以在终端的PyCharm和命令提示符中工作。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3145633|entityMap^0|31|J|3S|H|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

For me, on windows 10, I had unknowingly installed multiple python versions (One from PyCharm IDE and another from Windows store). I uninstalled the one from windows Store and just to be thorough, uninstalled numpy <code>pip uninstall numpy</code> and then installed it again <code>pip install numpy</code>. It worked in the terminal in PyCharm and also in command prompt.

blocks|key|3145648|text|我的解决方案--我在一个虚拟环境中安装了numpy，但是在虚拟环境中没有运行ipython：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3145649|(venv)+➜++which+python
/Users/alon/code/google_photos_project/venv/bin/python
(venv)+➜++which+ipython
/usr/bin/ipython|code-block|syntax|javascript|3145650|所以我必须安装ipython，并像这样从venv运行ipython：|3145651|python+-c+'import+IPython;+IPython.terminal.ipapp.launch_new_instance()'|3145652|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

solution for me - I installed numpy inside a virtual environment, but then running ipython was not inside virtual env:
<pre><code>(venv) ➜ which python
/Users/alon/code/google_photos_project/venv/bin/python
(venv) ➜ which ipython
/usr/bin/ipython
</code></pre>
so I had to install ipython, and run ipython from the venv like this:
<pre><code>python -c 'import IPython; IPython.terminal.ipapp.launch_new_instance()'
</code></pre>

blocks|key|2930984|text|我试图在Intellij中使用NumPy，但也面临着同样的问题，所以我发现NumPy也附带了pandas。所以，我用IntelliJ+tip安装了pandas，然后就可以导入NumPy了。总有一天能帮上忙的！|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2930985|entityMap^0|4|8|F|5|1A|6|1M|C|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|G|$]]

I was trying to use <code>NumPy</code> in <code>Intellij</code> but was facing the same issue so, I figured out that NumPy also comes with <code>pandas</code>. So, I installed pandas with <code>IntelliJ tip</code> and later on was able to import NumPy. Might help someone someday!

blocks|key|3145783|text|如其他答案所述，此错误可能指的是使用了错误的python版本。在我的例子中，我的环境是Windows10%2B+Cygwin。在我的Windows环境变量中，路径指向C:\Python38，这是正确的，但当我像这样运行我的命令时：|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|3145784|./my_script.py|code-block|syntax|javascript|3145785|我之所以得到ImportError:+No+module+named+numpy，是因为即使PATH环境变量是正确的，本例中使用的版本也是Cygwin自己的Python版本。我所需要的就是像这样运行这个脚本：|CODE|3145786|py+my_script.py|3145787|这样问题就解决了。|3145788|entityMap^0|1I|6|0|0|6|Y|0|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@$9|U|A|V|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|W|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|X|8|@$9|Y|A|Z|B|M]]|D|@]|E|$]]|$1|N|3|O|5|H|7|10|8|@]|D|@]|E|$I|J]]|$1|P|3|Q|5|6|7|11|8|@]|D|@]|E|$]]|$1|R|3|-4|5|6|7|12|8|@]|D|@]|E|$]]]|S|$]]

As stated in other answers, this error may refer to using the wrong python version. In my case, my environment is Windows 10 + Cygwin. In my Windows environment variables, the PATH points to C:\Python38 which is correct, but when I run my command like this:
<pre><code>./my_script.py
</code></pre>
I got the <code>ImportError: No module named numpy</code> because the version used in this case is Cygwin's own Python version even if PATH environment variable is correct.
All I needed was to run the script like this:
<pre><code>py my_script.py
</code></pre>
And this way the problem was solved.

blocks|key|2931037|text|pip3可能不是指您使用的python3。改为运行python3+-m+pip+install+numpy。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2931038|entityMap^0|P|S|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

pip3 may not refer to the python3 you use.
run <code>python3 -m pip install numpy</code> instead.

blocks|key|2931052|text|尝试卸载，然后重新安装+VSCode的Python扩展。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2931053|我尝试了许多不同的解决方案，但这个“硬刷新”对我来说是唯一有效的。|2931054|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Try uninstalling and then reinstalling the Python extension for VSCode.
I tried many different solutions, but this &quot;hard refresh&quot; was the only one that worked for me.

blocks|key|249107|text|我根据这里的答案做了所有的事情，但都没有起作用。所以我使用下面的命令删除了之前安装的numpy。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|249108|sudo+rm+-rf+/usr/lib/python3/dist-packages/numpy*
sudo+rm+-rf+/usr/lib/python3.7/dist-packages/numpy*
sudo+rm+-rf+/usr/lib/python2.7/dist-packages/numpy*|code-block|syntax|javascript|249109|然后使用pip3安装即可。|249110|sudo+pip3+install+numpy|249111|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

I did everything from the answers here but nothing worked. So I deleted all the previous installations of numpy using the commands below.
<pre><code>sudo rm -rf /usr/lib/python3/dist-packages/numpy*
sudo rm -rf /usr/lib/python3.7/dist-packages/numpy*
sudo rm -rf /usr/lib/python2.7/dist-packages/numpy*
</code></pre>
Then just install using pip3.
<pre><code>sudo pip3 install numpy
</code></pre>

blocks|key|249133|text|我也遇到了同样的问题！事实证明，当您将Numpy安装到某个版本的python并尝试使用另一个python版本运行该程序时，就会出现问题。您的文本编辑器默认打开的Python的全局版本可能与您正在运行的numpy版本所需的版本不同。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|249134|因此，首先，运行以下命令：|249135|which+python|offset|length|style|CODE|249136|python+--version|249137|which+pip|249138|pip+list|249139|如果您可以在列表中找到numpy，那么很可能是您使用的python版本与安装的numpy版本不兼容。在这种情况下，请尝试切换到不同版本的Python。|249140|如果没有安装numpy，只安装pip+install+numpy或pip3+install+numpy，具体取决于您的python版本。|249141|entityMap^0|0|0|0|C|0|0|G|0|0|9|0|0|8|0|0|F|H|X|I|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|W|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|X|8|@$F|Y|G|Z|H|I]]|9|@]|A|$]]|$1|J|3|K|5|6|7|10|8|@$F|11|G|12|H|I]]|9|@]|A|$]]|$1|L|3|M|5|6|7|13|8|@$F|14|G|15|H|I]]|9|@]|A|$]]|$1|N|3|O|5|6|7|16|8|@$F|17|G|18|H|I]]|9|@]|A|$]]|$1|P|3|Q|5|6|7|19|8|@]|9|@]|A|$]]|$1|R|3|S|5|6|7|1A|8|@$F|1B|G|1C|H|I]|$F|1D|G|1E|H|I]]|9|@]|A|$]]|$1|T|3|-4|5|6|7|1F|8|@]|9|@]|A|$]]]|U|$]]

I just had the same problem as well! It turns out the problem happens when you're installing Numpy to a version of python and trying to run the program using another python version. Probably the global version of Python your text editor opens by default is different from the one that you need for the version of numpy you are running.
So to start off, run:
<code>which python</code> 
<code>python --version</code> 
<code>which pip</code> 
<code>pip list</code>
If you can find numpy on the list, its most likely the python version you are using is not compatible with the version of numpy installed. Try switching to a different version of Python in this case.
If numpy is not installed just <code>pip install numpy</code> or <code>pip3 install numpy</code> depending upon your version of python.

blocks|key|2931113|text|对于安装目标是Raspberry+Pi的用户，如here所建议的那样：|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|2931114|sudo+apt-get+install+libatlas-base-dev|code-block|syntax|javascript|2931115|可能起作用了。|2931116|entityMap|0|LINK|mutability|MUTABLE|url|https://numpy.org/devdocs/user/troubleshooting-importerror.html^0|7|C|O|4|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@$9|X|A|Y|1|Z]]|E|$]]|$1|F|3|G|5|H|7|10|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|11|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|12|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]]]

For whom installation target is Raspberry Pi, as <a href="https://numpy.org/devdocs/user/troubleshooting-importerror.html" rel="nofollow noreferrer">here</a> they suggest:
<pre><code>sudo apt-get install libatlas-base-dev
</code></pre>
could be working.

blocks|key|249152|text|跑|type|unstyled|depth|inlineStyleRanges|entityRanges|data|249153|conda+update+--all|code-block|syntax|javascript|249154|PS回想一下使用"python2“或"python3”(不仅仅是"+python+")调用python。|249155|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Run
<pre><code>conda update --all
</code></pre>
PS recall calling python using either &quot;python2&quot; or &quot;python3&quot; (not merely &quot;python&quot;).

I have a very similar question to <a href="https://stackoverflow.com/questions/1517129/python-how-do-i-install-scipy-on-64-bit-windows">this question</a>, but still one step behind. I have only one version of Python 3 installed on my Windows 7 (sorry) 64-bit system.

I installed numpy following this <a href="http://sourceforge.net/projects/numpy/files/NumPy/1.3.0/numpy-1.3.0.win-amd64-py2.6.msi/download?use_mirror=ufpr" rel="noreferrer">link</a> - as suggested in the question. The installation went fine but when I execute 

<pre><code>import numpy
</code></pre>

I got the following error:

<blockquote>
 Import error: No module named numpy
</blockquote>

I know this is probably a super basic question, but I'm still learning.

Thanks

Import Error: No module named numpy

集成开发环境

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我有一个与非常相似的问题，但仍然落后了一步。我的Windows7(对不起)64位系统上只安装了一个版本的Python 3。按照问题中的建议，我按照这个安装了numpy。安装进行得很好，但是当我执行import numpy我得到了以下错误：导入错误:没有名为numpy的模块我知道这可能是一个非常基本的问题，但我还在学习。...

问导入错误:没有名为numpy的模块
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