如何在 Mac 上的不同 Python 可执行文件之间快速切换? [英] How to quickly switch between the different Python executables on my Mac?

问题描述

谁能告诉我如何在 Mac 上的以下 Python 可执行文件之间快速切换?

Can anyone tell me how I can quickly switch between the below Python executables on my Mac?

我希望能够在一个特定的虚拟环境中规定使用 psiTurk 所需的 Enthought Canopy 可执行文件

I want to be able to stipulate in one particular virtual environment to use the Enthought Canopy executable which I need for psiTurk

• 计算机本机"/usr/local/bin/python
• 本地到虚拟环境"/Users/brendan/Dropbox/workspace/psiturktestfive
• Enthought Canopy"/Users/brendan/Library/Enthought/Canopy_64bit/User/bin/python
• ".bash_profile"/Library/Frameworks/Python.framework/Versions/2.7/bin/python

是否有一个简单的终端命令可以做到这一点?

Is there a simple terminal command to do it?

目前，如果我编辑我的 .bash_profile，我只能让我的机器使用 Enthought Canpy 版本，但是一旦我为项目激活新的虚拟环境，就会切换到本地 python 可执行文件的虚拟环境

Currently I am only able to make my machine use the Enthought Canpy version if I edit my .bash_profile but once I activate a new virtual environment for a project is switches to the virtual environments local python executable

一如既往地提供任何帮助，非常感谢.

Any help is as always, much appreciated.

以下错误是我尝试使用 virtualenv -p/Users/brendan/Library/Enthought/Canopy_64bit/User/bin/python canopy 时收到的错误

The below error is what i recieve when I try to use virtualenv -p /Users/brendan/Library/Enthought/Canopy_64bit/User/bin/python canopy

localhost:workspace brendan$ virtualenv -p /Users/brendan/Library/Enthought/Canopy_64bit/User/bin/python canopy
Running virtualenv with interpreter /Users/brendan/Library/Enthought/Canopy_64bit/User/bin/python
Using base prefix '/Applications/Canopy.app/appdata/canopy-1.4.1.1975.macosx-x86_64/Canopy.app/Contents'
New python executable in canopy/bin/python
dyld: Library not loaded: @rpath/Python
  Referenced from: /Users/brendan/Dropbox/workspace/canopy/bin/python
  Reason: image not found
ERROR: The executable canopy/bin/python is not functioning
ERROR: It thinks sys.prefix is u'/Users/brendan/Dropbox/workspace' (should be u'/Users/brendan/Dropbox/workspace/canopy')
ERROR: virtualenv is not compatible with this system or executable
localhost:workspace brendan$ 

推荐答案

您可以使用以下方法创建 virtualenv:

You can create a virtualenv by using:

virtualenv -p /Users/brendan/Library/Enthought/Canopy_64bit/User/bin/python canopy

然后做

source canopy/bin/activate

(如果您使用的是 Unix 并使用 Bash).

(if you are on Unix and use Bash).

Virtualenv 可以使用 pip install virtualenv 安装，或者按照 home 上的说明进行安装页面

Virtualenv can install with pip install virtualenv, or follow instruction on the home page

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