【问题标题】：How to execute ssh command via robotframework如何通过robotframework执行ssh命令
【发布时间】：2018-11-26 21:48:25
【问题描述】：

谁能告诉我我在以下代码中犯了什么错误，我正在尝试使用机器人框架运行 shell 命令，并且我已经使用以下命令安装了 sshlibrary 模块 - pip install robotframework-sshlibrary。但我仍然收到导入 SSHLibrary 失败的错误。我的操作系统是 Ubuntu14.04。

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...

【问题讨论】：

您能否检查一下 paramiko 库是否已安装？ pip list | grep paramiko。它应该由 pip 自动安装为 sshlibrary 的依赖项。
root@92:~# pip list | grep paramiko paramiko (2.1.2) root@92:~# python -V Python 2.7.6 paramiko 库已安装。会不会对python版本有依赖？
罕见情况！但值得检查系统是否有多个 python 版本！和pybot相关的必须用SSH lib更新。
@MarkHu 感谢更新。我检查了版本，发现安装了不同的版本。我已经使用python -m pip install packagename 安装了正确的版本，它得到了解决。 root@92:~# head -n1 $(which pip) #!/usr/bin/python root@92:~# head -n1 $(which pybot) #!/usr/bin/python
@Waman 和我在同一个波长上。我已将我的评论转换为答案，并将接受投票作为感谢。 :)

标签： ssh robotframework

【解决方案1】：

在涉及 Robot Framework 之前，您的错误似乎发生在 SSHLibrary/pythonclient.py 中。尝试制作一个导入 Paramiko 的小 Python 脚本。有时pip 和pybot 使用不同版本的 Python。尝试比较 head -n1 $(which pip) 和 head -n1 $(which pybot) 的输出来检查。

【讨论】：

【解决方案2】：

我有一个非常相似的案例：

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

感谢@MarkHu 我检查了：

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

和：

$ 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 将机器人版本“降级”到 2.7，如下所示：

python -m robot test.robot

【讨论】：