blocks|key|2058052|text|这应该可以解决问题：brew+link+--overwrite+python|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2058053|entityMap^0|A|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|$]]

This should solve the problem: <code>brew link --overwrite python</code>

blocks|key|2058071|text|我使用Linux。我对苹果和他们所做的特别的事情一无所知。但从错误信息来看，似乎|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2058072|bash启动meld程序|ordered-list-item|2058073|meld程序是指中中的python程序。|offset|length|style|BOLD|2058074|某个地方的在meld程序中出错，导致bash错误消息|2058075|下面是调试和解决这些问题的方法：|2058076|打开终端(黑色窗口，您可以输入命令)|2058077|通过将which+python输入终端窗口，找出python程序的安装位置。
$哪个python+/usr/bin/python
在我的例子中，我们可以看到python安装在/usr/bin/python中。|CODE|2058078|找出meld程序的安装位置。在最初的问题中，这是在/usr/local/bin/meld中，我们可以从4中的错误消息中推断出来。但是我们可以再次尝试哪个命令，并询问系统在哪里找到meld：which+meld：
$+meld+/usr/bin/meld
在我的例子中，这是在/usr/bin/meld中。|2058079|现在打开which+meld在步骤3中报告的文件，并备份它。|2058080|现在，在您选择的编辑器中打开which+meld在步骤3中报告的文件，并更改第一行，以便从步骤2开始使用#!，然后是python程序的路径。在我的示例中，meld的第一行是：#!/usr/bin/python。保存对文件的更改，然后重新尝试启动meld。您可能需要一些管理员访问权限才能保存文件。|2058081|首先，通过输入meld在终端中启动它，因此很容易读取错误消息。|2058082|如果meld是从终端开始的，那么就从gui开始您通常采用的方式，并希望它也能工作。|2058083|2058084|​|2058085|最初的问题提到了几个版本的python。我还安装了几个版本，我可以要求系统提供不同的版本：|2058086|$+which+python2
/usr/bin/python2
$+which+python2.7
/usr/bin/python2.7
$+which+python3
/usr/bin/python3
$+which+python3.4
/usr/bin/python3.4|code-block|syntax|javascript|2058087|如果您安装了多个版本:在编辑步骤3中的文件时，一次尝试一个版本。|2058088|entityMap^0|0|0|8|1|0|0|5|0|0|0|3|C|2F|F|0|P|J|2M|A|3T|D|0|4|A|0|E|A|1G|2|2F|H|1|7|4|1|1|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1H|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|1I|8|@]|9|@]|A|$]]|$1|E|3|F|5|D|7|1J|8|@$G|1K|H|1L|I|J]]|9|@]|A|$]]|$1|K|3|L|5|D|7|1M|8|@$G|1N|H|1O|I|J]]|9|@]|A|$]]|$1|M|3|N|5|6|7|1P|8|@]|9|@]|A|$]]|$1|O|3|P|5|D|7|1Q|8|@]|9|@]|A|$]]|$1|Q|3|R|5|D|7|1R|8|@$G|1S|H|1T|I|S]|$G|1U|H|1V|I|S]]|9|@]|A|$]]|$1|T|3|U|5|D|7|1W|8|@$G|1X|H|1Y|I|S]|$G|1Z|H|20|I|S]|$G|21|H|22|I|S]]|9|@]|A|$]]|$1|V|3|W|5|D|7|23|8|@$G|24|H|25|I|S]]|9|@]|A|$]]|$1|X|3|Y|5|D|7|26|8|@$G|27|H|28|I|S]|$G|29|H|2A|I|S]|$G|2B|H|2C|I|S]]|9|@]|A|$]]|$1|Z|3|10|5|D|7|2D|8|@$G|2E|H|2F|I|S]]|9|@]|A|$]]|$1|11|3|12|5|D|7|2G|8|@]|9|@]|A|$]]|$1|13|3|-4|5|6|7|2H|8|@]|9|@]|A|$]]|$1|14|3|15|5|6|7|2I|8|@]|9|@]|A|$]]|$1|16|3|17|5|6|7|2J|8|@]|9|@]|A|$]]|$1|18|3|19|5|1A|7|2K|8|@]|9|@]|A|$1B|1C]]|$1|1D|3|1E|5|6|7|2L|8|@]|9|@]|A|$]]|$1|1F|3|-4|5|6|7|2M|8|@]|9|@]|A|$]]]|1G|$]]

I use Linux. I have no clue about Apple and the special things they do. But judging from the error messages given it seems that 

<ol>
<li>bash starts the meld program </li>
<li>the meld program refers to the python program in someplace</li>
<li>someplace is wrong in the meld program, causing the bash error message</li>
</ol>

Now here is how you debug and solve such problems:

<ol>
<li>open a terminal (black window where you can enter commands)</li>
<li>find out where the python program is installed by entering <code>which python</code> into the terminal window.

<pre><code>$ which python
/usr/bin/python
</code></pre>

In my case we can see that python is installed in <code>/usr/bin/python</code></li>
<li>Find out where the meld program is installed. In the original question this is in <code>/usr/local/bin/meld</code>, as we can deduce from the error message in 4. But we can try again the which command and ask where the system finds a meld: <code>which meld</code>:

<pre><code>$ which meld
/usr/bin/meld
</code></pre>

In my case this is in <code>/usr/bin/meld</code>. </li>
<li>now you open the file that <code>which meld</code> reported in step 3. and make a backup copy of it</li>
<li>now you open the file that <code>which meld</code> reported in step 3. in your editor of choice and change the first line, such that it starts with <code>#!</code> followed by the path of the python program from step 2. in my case the first line of meld is: <code>#!/usr/bin/python</code>. Save the changes to the file and retry starting meld. You probably need some admin access rights to be able to save the file. 

<ol>
<li>first start it in the terminal by entering <code>meld</code>, so it is easiert to read the error messages.</li>
<li>if meld started in the terminal, start meld your usual way from the gui, and hope that it works, too</li>
</ol></li>
</ol>

The original question mentioned several versions of python. I have also several versions installed, I can ask the system for the different versions:

<pre><code>$ which python2
/usr/bin/python2
$ which python2.7
/usr/bin/python2.7
$ which python3
/usr/bin/python3
$ which python3.4
/usr/bin/python3.4
</code></pre>

If you have several versions installed: try one at a time when editing the file from step 3.

blocks|key|906803|text|强烈建议不要在osx上使用System，而是安装一个单独的Python版本(原因列表见本页面这里)。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|906804|原因归结为OSX依赖于它自己的Python安装，您不应该篡改它，从而无法更新Python或处理某些模块。|906805|通过运行以下命令，您可以轻松地安装带有自制的Python的单独版本：|906806|brew+install+python|code-block|syntax|javascript|906807|这将为您提供位于/usr/local/bin/python中的python2.7(3.x为brew+install+python3)的工作安装。这是(如果我正确地理解您的错误信息)，也是地方梅尔德正在寻找它。|style|CODE|906808|(我喜欢这博客，以获得更多关于如何在osx上安装Python的信息。)|906809|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/MacPython/wiki/wiki/Which-Python|1|http://nerderati.com/2014/09/03/installing-matplotlib-numpy-scipy-nltk-and-pandas-on-os-x-without-going-crazy/^0|1A|2|0|0|0|0|0|8|L|19|K|0|4|1|1|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@$A|13|B|14|1|15]]|C|$]]|$1|D|3|E|5|6|7|16|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|17|8|@]|9|@]|C|$]]|$1|H|3|I|5|J|7|18|8|@]|9|@]|C|$K|L]]|$1|M|3|N|5|6|7|19|8|@$A|1A|B|1B|O|P]|$A|1C|B|1D|O|P]]|9|@]|C|$]]|$1|Q|3|R|5|6|7|1E|8|@]|9|@$A|1F|B|1G|1|1H]]|C|$]]|$1|S|3|-4|5|6|7|1I|8|@]|9|@]|C|$]]]|T|$U|$5|V|W|X|C|$Y|Z]]|10|$5|V|W|X|C|$Y|11]]]]

It is highly recommended not to use the System Python on osx, but install a separate version of Python (for a list of the reasons see for example this page <a href="https://github.com/MacPython/wiki/wiki/Which-Python" rel="nofollow">here</a>).

The reason boils down to the fact that OSX depends on it's own Python installation, which you should not tamper with, leaving unable to update Python or work with some modules.

You can easily install a separate version of Python with homebrew by running:

<pre><code>brew install python
</code></pre>

This should give you a working installation of python 2.7 (<code>brew install python3</code> for 3.x) that is located in <code>/usr/local/bin/python</code>. This is (if I understand your error messages correctly) also the place Meld is looking for it.

(I like <a href="http://nerderati.com/2014/09/03/installing-matplotlib-numpy-scipy-nltk-and-pandas-on-os-x-without-going-crazy/" rel="nofollow">this</a> blogpost for more info on how to setup Python on osx.)

I have both Python 2.7 and Python 3.4 installed on my MacBook, as both are needed sometimes. 

Python 2.7 is shipped by Apple itself.
Python 3.4 is installed by Mac OS X 64-bit/32-bit installer in the link
<a href="https://www.python.org/downloads/release/python-343/" rel="noreferrer">https://www.python.org/downloads/release/python-343/</a>

Here is how I installed Meld on Mac OS X 10.10:

<ol>
<li>Install apple development command line tools;</li>
<li>Install Homebrew;</li>
<li><code>homebrew install homebrew/x11/meld</code></li>
<li>When launched meld, it says:

<pre><code>**bash: /usr/local/bin/meld: /usr/local/opt/python/bin/python2.7: bad interpreter: No such file or directory**
</code></pre></li>
</ol>

From my research, some people recommend to modify the first line in <code>/usr/local/bin/pip</code>, i.e.,

<pre class="lang-none prettyprint-override"><code>#!/usr/local/opt/python/bin/python2.7
</code></pre>

This file is missing. However, if I want to be able to use both Python 2.7 and Python 3.4 for Meld, what should I do to make it work?

Mac OS X 10.10 Meld Error

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我的MacBook上同时安装了Python2.7和Python3.4，因为有时两者都需要安装。Python2.7是由苹果自己出品的。Python3.4由Mac 64位/32位安装程序在链接中安装。下面是我如何在MacOSX10.10上安装Meld：安装苹果开发命令行工具；安装国产啤酒；homebrew install ...

问Mac 10.10 Meld错误
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