[python-win32] accessing Win32_Tpm()

[Tim Golden]

On 20/06/2012 13:01, prashant padaganur wrote:
> Thanks to your tutorial on WMI I had tried this yesterday. I get the
> following error when I try printing wmi.WMI ().Win32_Tpm. 
> ---------
> Traceback (most recent call last):
>   File "C:/Users/ppadagax/Documents/Scripts/freshTpm.py", line 14, in
> <module>
>     print wmi.WMI ().Win32_Tpm
>   File "C:\Python27\lib\site-packages\wmi.py", line 1147, in __getattr__
>     return getattr (self._namespace, attribute)
>   File "C:\Python27\lib\site-packages\win32com\client\dynamic.py", line
> 516, in __getattr__
>     raise AttributeError("%s.%s" % (self._username_, attr))
> AttributeError: winmgmts:.Win32_Tpm
> ----------
> 
> More info about Win32_Tpm class
> here: http://msdn.microsoft.com/en-us/library/windows/desktop/aa376484(v=vs.85).aspx
> 
> I have this Tpm chip in my machine which runs on Windows 7 and when I
> run tpm.msc from the windows run tab, I get all the info from GUI. I
> need to access the same information programatically through python. I
> saw few code samples on the internet which implement the same using VB
> or C#. What I essentially need is the python version of this link which
> shows how to access Win32_Tpm info using .Net.
> 
> http://blogs.msdn.com/b/securitytools/archive/2009/07/29/wmi-programming-using-c-net.aspx

According to:

http://msdn.microsoft.com/en-us/library/windows/desktop/aa376484%28v=vs.85%29.aspx

the Win32_Tpm class is in its own namespace. So try this:

<code>
import wmi

c = wmi.WMI(namespace="root/cimv2/security/microsofttpm")
for whatever in c.Win32_Tpm():
  # do whatever

</code>

TJG