Re: [python-win32] win32com.client.WithEvents fails when running as a Windows service

2021-03-06 Thread Tim Roberts 
On Mar 6, 2021, at 6:43 AM, Marius Cirsta  wrote:
> 
>  I'm trying to automate CANoe using win32com. I've written a script that 
> works perfectly when I log in and run it as a normal user.
> ...
> When being run as a service though I get this error:
> 
> Traceback (most recent call last):
>   File "D:\Jenkins\Scripts\dispatch.py", line 203, in 
> exec_test(PDConfigPath, "CommonTests", "PD_CSB")
>   File "D:\Jenkins\Scripts\dispatch.py", line 146, in exec_test
> win32com.client.WithEvents(csbTstMod, TestModuleEvents)
>   File "C:\Program 
> Files\Python39\lib\site-packages\win32com\client\__init__.py", line 336, in 
> WithEvents
> instance = result_class(disp) # This only calls the first base class 
> __init__.
>   File 
> "C:\WINDOWS\TEMP\gen_py\3.9\7F31DEB0-5BCC-11D3-8562-00105A3E017Bx0x1x58.py", 
> line 19507, in __init__
> cookie=cp.Advise(win32com.server.util.wrap(self, 
> usePolicy=EventHandlerPolicy))
> pywintypes.com_error: (-2147024891, 'Access is denied.', None, None)

Do you have your service configured to run as your user?  The normal service 
user has different access permissions, so it can’t access your file shares.
— 
Tim Roberts, t...@probo.com
Providenza & Boekelheide, Inc.

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[python-win32] win32com.client.WithEvents fails when running as a Windows service

2021-03-06 Thread Marius Cirsta 
Hi,

 I'm trying to automate CANoe using win32com. I've written a script that
works perfectly when I log in and run it as a normal user.

 I want to run it from a Jenkins service though and I have allowed the
Jenkins service to interact with desktop or whatever that option is called.

This runs just fine :

myCanApp = win32com.client.Dispatch('CANoe.Application')
print("CANoe dispatched!")

 And a CANoe instance is started. But then this code follows:

onfiguration = myCanApp.Configuration
measurement = myCanApp.Measurement

# Getting the Test Configurations
TestEnvs = Configuration.TestSetup.TestEnvironments
csbTstMod = None
for tstEnv in TestEnvs:
if (tstEnv.Name != tstEnvName):
continue
tstEnv = win32com.client.CastTo(tstEnv, "ITestEnvironment2")
for tstMod in tstEnv.TestModules:
if (tstMod.Name == tstModName):
csbTstMod = tstMod
break

win32com.client.WithEvents(csbTstMod, TestModuleEvents)

Normally this also runs fine and I can intercept the events with my custom
handler.

When being run as a service though I get this error:


Traceback (most recent call last):
  File "D:\Jenkins\Scripts\dispatch.py", line 203, in 
exec_test(PDConfigPath, "CommonTests", "PD_CSB")
  File "D:\Jenkins\Scripts\dispatch.py", line 146, in exec_test
win32com.client.WithEvents(csbTstMod, TestModuleEvents)
  File "C:\Program
Files\Python39\lib\site-packages\win32com\client\__init__.py", line
336, in WithEvents
instance = result_class(disp) # This only calls the first base
class __init__.
  File 
"C:\WINDOWS\TEMP\gen_py\3.9\7F31DEB0-5BCC-11D3-8562-00105A3E017Bx0x1x58.py",
line 19507, in __init__
cookie=cp.Advise(win32com.server.util.wrap(self,
usePolicy=EventHandlerPolicy))
pywintypes.com_error: (-2147024891, 'Access is denied.', None, None)


It would be really useful to understand what's going on, where the problem
is as I cannot determine what permissions I need to enable ( some COM
permissions  ? )  for this to work as a service. As I've said interact with
Desktop is on , othewise the first Dispatch of CANoe wouldn't work.
I'm using the latest pywin32 installed with pip ( as Admin ) in Windows 10
ver 19xx.

Any help to make any progress or debug this somehow would be appreciated. I
can debug using pydevd but so far that wasn't very useful.

Thanks.
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