如何通过robotframework执行ssh命令

Question

有人能告诉我我在下面的代码中做了什么错误吗?我试图使用机器人框架运行一个shell命令，并且我已经使用下面的命令- pip install robotframework-sshlibrary安装了sshlibrary模块。但是，导入SSHLibrary failed.My操作系统是Ubuntu14.04仍然是错误的。

Deploy.robot

*** Settings ***
Library         SSHLibrary
Resource        configuration.txt

*** Variables ***
${OBR_HOST}      10.110.72.192
${OBR_USERNAME}  root
${OBR_PASSWORD}  password

*** Test Cases ***

Deploy OBR machine code 
    ${output}=  Execute Command  /root/deploy.sh
    log to console  ${\n}${output}

*** Keywords ***
open_connection_and_login
    Open Connection  ${OBR_HOST}
    Login  ${OBR_USERNAME}  ${OBR_PASSWORD}

执行日志

root@92:~# pybot ssh-example.robot 
[ ERROR ] Error in file '/root/ssh-example.robot': Importing test library 'SSHLibrary' failed: ImportError: Importing Paramiko library failed. Make sure you have Paramiko installed.
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/SSHLibrary/__init__.py", line 15, in <module>
    from .library import SSHLibrary
  File "/usr/local/lib/python2.7/dist-packages/SSHLibrary/library.py", line 22, in <module>
    from .client import SSHClient
  File "/usr/local/lib/python2.7/dist-packages/SSHLibrary/client.py", line 20, in <module>
    from pythonclient import PythonSSHClient as SSHClient
  File "/usr/local/lib/python2.7/dist-packages/SSHLibrary/pythonclient.py", line 21, in <module>
    'Importing Paramiko library failed. '
PYTHONPATH:
  /usr/local/bin
  /usr/lib/python2.7
  /usr/lib/python2.7/plat-x86_64-linux-gnu
  /usr/lib/python2.7/lib-tk
  /usr/lib/python2.7/lib-old
  /usr/lib/python2.7/lib-dynload
  /usr/local/lib/python2.7/dist-packages
  /usr/lib/python2.7/dist-packages
  /usr/lib/python2.7/dist-packages/PILcompat
  /usr/lib/python2.7/dist-packages/gtk-2.0
  /usr/lib/python2.7/dist-packages/ubuntu-sso-client
==============================================================================
Ssh-Example                                                                   
==============================================================================
Execute Deploy command                                                | FAIL |
Parent suite setup failed:
No keyword with name 'Open Connection' found.
------------------------------------------------------------------------------
Ssh-Example                                                           | FAIL |
Suite setup failed:
No keyword with name 'Open Connection' found.

Also suite teardown failed:
No keyword with name 'Close All Connections' found.

1 critical test, 0 passed, 1 failed
1 test total, 0 passed, 1 failed
==============================================================================
Output:  /root/output.xml
Log:     /root/log.html
Report:  /root/report.html
root@92:~# pip install robotframework-sshlibrary
Requirement already satisfied (use --upgrade to upgrade): robotframework-sshlibrary in /usr/local/lib/python2.7/dist-packages
Requirement already satisfied (use --upgrade to upgrade): robotframework in /usr/local/lib/python2.7/dist-packages (from robotframework-sshlibrary)
Requirement already satisfied (use --upgrade to upgrade): paramiko>=1.8.0 in /usr/local/lib/python2.7/dist-packages (from robotframework-sshlibrary)
Cleaning up...

Answer 1

看起来，在涉及到机器人框架之前，您的错误发生在SSHLibrary/pythonclient.py中。尝试制作一个导入Paramiko的Python脚本。有时，pip和pybot使用不同版本的Python。尝试将head -n1 $(which pip)的输出与head -n1 $(which pybot)进行比较以检查这一点。

Answer 2

我有一个非常相似的案例：

Importing test library 'SSHLibrary' failed: ImportError: No module named 'SSHLibrary'

多亏了@MarkHu，我查了一下：

$ head -n1 $(which pip)
#!/usr/bin/python

以及：

$ head -n1 $(which pybot)
#!/usr/bin/python3

一个简单的解决方案(来自：https://pypi.org/project/robotframework/)是使用python运行“降级”机器人版本，也就是2.7，如下所示：

python -m robot test.robot