exceptions.TypeError: a float is required

[altzone]

Hello, I have an error when I run the statistics only when i call vms statistic :

Error, cannot get vm metrics vmware_vm_disk_usage_average for ..... (lot of vmname)

[2018-07-03 17:21:02.748099+00:00] [Failure instance: Traceback: <type 'exceptions.TypeError'>: a float is required
/usr/lib/python2.7/dist-packages/twisted/internet/base.py:1203:mainLoop
/usr/lib/python2.7/dist-packages/twisted/internet/base.py:825:runUntilCurrent
/usr/lib/python2.7/dist-packages/twisted/internet/defer.py:393:callback
/usr/lib/python2.7/dist-packages/twisted/internet/defer.py:501:_startRunCallbacks
--- <exception caught here> ---
/usr/lib/python2.7/dist-packages/twisted/internet/defer.py:588:_runCallbacks
build/bdist.linux-x86_64/egg/vmware_exporter/vmware_exporter.py:129:generate_latest_metrics
build/bdist.linux-x86_64/egg/prometheus_client/core.py:775:_floatToGoString
]
Unhandled Error
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/twisted/internet/base.py", line 1203, in mainLoop
    self.runUntilCurrent()
  File "/usr/lib/python2.7/dist-packages/twisted/internet/base.py", line 825, in runUntilCurrent
    call.func(*call.args, **call.kw)
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 393, in callback
    self._startRunCallbacks(result)
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 501, in _startRunCallbacks
    self._runCallbacks()
--- <exception caught here> ---
  File "/usr/lib/python2.7/dist-packages/twisted/internet/defer.py", line 588, in _runCallbacks
    current.result = callback(current.result, *args, **kw)
  File "build/bdist.linux-x86_64/egg/vmware_exporter/vmware_exporter.py", line 129, in generate_latest_metrics

  File "build/bdist.linux-x86_64/egg/prometheus_client/core.py", line 775, in _floatToGoString

exceptions.TypeError: a float is required

when i call datastores and hosts statistics, there is no problem.

running

• Python 2.7.12
• pyvmomi 6.5.0.2017.5.post1
• prometheus-client 0.0.19
• on Ubuntu 16.04

connected on VMware VShpere 5.5
I test with docker or directly and the error is the same
Do you have an idea?

Thank you!

[pryorda]

Can you move this over to my repo?