使Python虚拟环境，Fabric和Sudo协同工作 [英] Getting a Python Virtual Environment, Fabric and Sudo to Work Together

问题描述

复制步骤:

1. 在Linux环境中，在桌面上创建一个名为"fab"的文件夹
2. 仅供参考，我正在使用zsh
3. 从CD到~/Desktop/fab

4. 运行在您的./fab目录中制作的fabfile.py，方法是发出fab init:

1. In a linux environment, create a folder on your desktop called 'fab'
2. FYI, I'm using zsh
3. cd to ~/Desktop/fab

4. Run this fabfile.py made in your ./fab dir by issuing fab init:

#!/usr/bin/env python
#set up ssh to remote server

import sys, os, fileinput
from fabric.api import *

def init():
    local('mkdir ./virtualenv')
    local('cd ./virtualenv && virtualenv --no-site-packages venv')
    local('chown -R user:user ./virtualenv/')
    local('chmod 770 -R ./virtualenv/')
    venv = 'source ./virtualenv/venv/bin/activate && '
    local(venv+'pip install mysql-python django South')

出现此错误:

Get this error:

➜  fab  fab init    
[localhost] local: mkdir ./virtualenv
[localhost] local: cd ./virtualenv && virtualenv --no-site-packages venv
New python executable in venv/bin/python
Installing distribute...........................................................................................................................................................................................................................done.
Installing pip................done.
[localhost] local: chown -R user:user ./virtualenv/
[lcalhost] local: chmod 770 -R ./virtualenv/
[localhost] local: source ./virtualenv/venv/bin/activate && pip install mysql-python django South
/bin/sh: 1: source: not found

Fatal error: local() encountered an error (return code 127) while executing 'source ./virtualenv/venv/bin/activate && pip install mysql-python django South'

Aborting.

从zsh运行source ./virtualenv/venv/bin/activate && pip install mysql-python django South，并观察它是否有效.

Run source ./virtualenv/venv/bin/activate && pip install mysql-python django South from zsh, and observe that it works.

这不是重复的问题，例如此，因为即使在代码中使用with prefix(，我也遇到相同的错误.

This is not a duplicate question of something like this, as I am getting the same error even if I use a with prefix( in my code.

有什么想法吗?

推荐答案

将source替换为/bin/bash/.这是一个示例:

Replace source with /bin/bash/. Here's an example:

from fabric.api import *


def init():
    local('virtualenv --no-site-packages venv')

    venv_command = '/bin/bash venv/bin/activate'
    pip_command = 'venv/bin/pip install mysql-python django South'
    local(venv_command + ' && ' + pip_command)

仅供参考，对于run/sudo，最好使用prefix上下文管理器，如建议的此处.

FYI, for run/sudo it's better to use prefix context manager, like suggested here.

希望有帮助.

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