Fabric：意外标记“(”附近的语法错误

Question

我有这样的 fabfile.py:

from fabric.api import *

def deploy():
    with prefix('source venv/bin/activate'):
        local('pex -r <(cat requirements.txt) . -o app.pex')

当我运行 $ fab deploy 我得到：

$ fab deploy
[localhost] local: pex -r <(cat requirements.txt) . -o app.pex
/bin/sh: -c: line 0: syntax error near unexpected token `('
/bin/sh: -c: line 0: `source venv/bin/activate && pex -r <(cat requirements.txt) . -o app.pex'

Fatal error: local() encountered an error (return code 1) while executing 'pex -r <(cat requirements.txt) . -o app.pex'

Aborting.

命令 source venv/bin/activate && pex -r <(cat requirements.txt) . -o app.pex 运行在 shell 中成功。我是 Fabric 的新手。这里有什么问题？

Answer 1

fabric.operations.local() function默认使用/bin/sh作为shell到运行的命令。此基本 shell 不支持 /bin/bash 支持的所有语法。

如果您必须访问 Bash，请设置 shell='/bin/bash' shell 语法：

local('pex -r <(cat requirements.txt) . -o app.pex', shell='/bin/bash'))

Fabric：意外标记“(”附近的语法错误

Fabric: syntax error near unexpected token '('

python

fabric