Emacs中的Python 2和3 [英] Both Python 2 and 3 in Emacs

问题描述

我一直在使用Emacs来编写Python 2代码。现在我的系统上安装了Python 2.6和3.0，我也需要编写Python 3代码。

以下是不同版本的设置/ usr / bin：

  python  - > python2.6 * 
 python2  - > python2.6 * 
 python2.6 * 
 
 python3  - > python3.0 * 
 python3.0 * 
  

有没有办法设置这样Emacs使用正确的Python版本，具体取决于我使用的是哪种语言？例如，Cc Cc目前运行缓冲区，但总是调用python2.6，即使我正在编写Python 3代码。

解决方案

p>如果您使用的是python-mode.el，您可以尝试更改 py-which-shell 。为了在每个文件的基础上执行此操作，您可以将

 ＃ -  *  -  py-which-shell：python3 ; - 在文件的第一行 - 或 - 如果第一行开始的第二行 -  *  -  
  

与＃！。
另一个选择是将

 ＃本地变量：
＃py-which-shell：python3 
＃End：
  

在文件的末尾。也许你应该给python3而不是python3的完整路径。

I have been using Emacs to write Python 2 code. Now I have both Python 2.6 and 3.0 installed on my system, and I need to write Python 3 code as well.

Here is how the different versions are set up in /usr/bin:

python -> python2.6*
python2 -> python2.6*
python2.6*

python3 -> python3.0*
python3.0*

Is there any way to set this up so that Emacs uses the correct version of Python, depending on which language I am using? For instance, C-c C-c currently runs the buffer, but it always calls python2.6, even if I am writing Python 3 code.

解决方案

If you are using python-mode.el you can try to change py-which-shell. In order to do this on a per-file basis you can put

# -*- py-which-shell: "python3"; -*-

at the first line of your file - or at the second line if the first line starts with #!. Another choice is to put

# Local Variables:
# py-which-shell: "python3" 
# End: 

at the end of your file. Perhaps you should give the full path to python3 instead of just "python3".

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