Question

如果我在pycharm中运行以下代码，我会收到此错误：

- 错误 -

C:\Python33\python.exe B:/Python/untitled3/working_test.py
'vim.VirtualMachine:vm-65063'
Traceback (most recent call last):
  File "B:/Python/untitled3/working_test.py", line 47, in <module>
    main()
  File "B:/Python/untitled3/working_test.py", line 37, in main
    filterspec = vim.TaskFilterSpec(vim.TaskFilterSpec.ByEntity(entity=source_machine))
TypeError: __init__() takes 1 positional argument but 2 were given

Process finished with exit code 1

- 错误 -

我尝试过使用自我，创建课程等，但我无法理解我做错的事情。任何帮助表示赞赏。基本上，我试图在vsphere中的实体（虚拟机）上获取任务信息。

谢谢！

import ssl

from pyVim import connect
from pyVmomi import vmodl, vim


def main():

    try:
        context = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
        context.verify_mode = ssl.CERT_NONE
        si = connect.SmartConnect(host='vcenter name',
                                  user='user name',
                                  pwd='password',
                                  port=443,
                                  sslContext=context)

        if not si:
            print("Could not connect to the specified host using specified "
                  "username and password")
            return -1

        content = si.RetrieveContent()

        def getobject(vimtype, name):
            obj = None
            container = content.viewManager.CreateContainerView(content.rootFolder, vimtype, True)
            for c in container.view:
                if c.name == name:
                    obj = c
                    break
            return obj

        source_machine = getobject([vim.VirtualMachine], 'virtual machine name')
        print(source_machine)
        taskManager = content.taskManager
        filterspec = vim.TaskFilterSpec(vim.TaskFilterSpec.ByEntity(entity=source_machine))
        collector = taskManager.CreateCollectorForTasks(filterspec)

    except vmodl.MethodFault as e:
        print("Caught vmodl fault : {}".format(e.msg))
        return -1

    return 0

if __name__ == "__main__":
    main()

Answer 1

vim.TaskFilterSpec()不接受位置参数。可以通过以下方式对异常进行最小程度的复制：

>>> vim.TaskFilterSpec(vim.TaskFilterSpec.ByEntity(entity=vim.ManagedEntity('1')))
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: __init__() takes 1 positional argument but 2 were given

要使用vim.TaskFilterSpec()命名参数调用类构造函数entity。在上面的示例代码中，这意味着将第37行更改为：

filterspec = vim.TaskFilterSpec(entity=vim.TaskFilterSpec.ByEntity(entity=source_machine))

使用安慰剂ManagedEntity调用时，会产生类似于以下内容的过滤规范：

>>> source_machine=vim.ManagedEntity('1')
>>> filterspec = vim.TaskFilterSpec(entity=vim.TaskFilterSpec.ByEntity(entity=source_machine))
>>> filterspec
(vim.TaskFilterSpec) {
   dynamicType = <unset>,
   dynamicProperty = (vmodl.DynamicProperty) [],
   entity = (vim.TaskFilterSpec.ByEntity) {
      dynamicType = <unset>,
      dynamicProperty = (vmodl.DynamicProperty) [],
      entity = 'vim.ManagedEntity:1',
      recursion = <unset>
   },
   time = <unset>,
   userName = <unset>,
   activationId = (str) [],
   state = (vim.TaskInfo.State) [],
   alarm = <unset>,
   scheduledTask = <unset>,
   eventChainId = (int) [],
   tag = (str) [],
   parentTaskKey = (str) [],
   rootTaskKey = (str) []
}

Answer 2

谢谢你的帮助。

我已经调整了这部分代码并且它没有错误地返回，但现在查看，为什么它似乎只返回查询任务本身而不是与vm相关的任务。我认为它可能与处于中心级别的任务有关，但现在就开始工作了。

source_machine = getobject([vim.VirtualMachine], 'virtual machine name)
taskManager = content.taskManager
filterspec = vim.TaskFilterSpec()
filterspec.entity = vim.TaskFilterSpec.ByEntity(entity=source_machine,recursion='all')
collector = taskManager.CreateCollectorForTasks(filterspec)
print(collector)

输出返回：

C:\Python33\python.exe B:/Python/untitled3/working_test.py
'vim.TaskHistoryCollector:session[52b617f0-0f65-705c-7462-814d8b648fdd]52081175-cb98-a09f-f9f6-f6787f68d3b7'

Process finished with exit code 0

尝试在虚拟机实体上提取任务信息

2 个答案: