How to build a Windows service using win32?
I'm trying to write a Win32 service. The following is straight from Python
Programming on Win32 and it doesn't work. Is that book out of date; is
there a new way to do services? I searched Google for hours trying to find
any other method, and have been beating on this one for 5 more hours.
The present error is:
C:\Tester>python tester.py debug
Debugging service Tester - press Ctrl+C to stop.
Error 0xC004 - Python could not import the service's module
: No module named service
The code is:
import win32serviceutil, win32service, win32event
class Service(win32serviceutil.ServiceFramework):
_svc_name_ = "EDMS-to-CG"
_svc_display_name_ = "EDMS-to-CG Syncer"
_svc_description_ = "Uploaded the EDMS database to Cartograph"
def __init__(self, args):
win32serviceutil.ServiceFramework.__init__(self, args)
self.hWaitStop = win32event.CreateEvent(None, 0, 0, None)
def SvcStop(self):
self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
win32event.SetEvent(self.hWaitStop)
def SvcDoRun(self):
pausetime = 60 * 1000
while True:
stopsignal = win32event.WaitForSingleObject(self.hWaitStop,
pausetime)
if stopsignal == win32event.WAIT_OBJECT_0: break
self.runOneLoop()
def runOneLoop(self):
import servicemanager
servicemanager.LogInfoMsg('Running')
win32serviceutil.HandleCommandLine(Service)
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Re: How to build a Windows service using win32?
Giles Brown wrote:
> Yeah. You've cleverly decided to simplify the "smallest possible
> python service" by removing the
> if __name__ == '__main__':
Ha ha. :)
Seriously, though, I removed that long after it was failing to work, and
have since replaced it and it didn't affect a thing.
Gabriel Genellina wrote:
> Have you installed the pywin32 package from
> https://sourceforge.net/projects/pywin32/ ?
> The code skeleton looks OK to me.
Indeed, I have win32 installed. I'm used to writing wx applications,
compiling into exes, etc. Services are a new direction for me.
So, both of you say that the program I sent *did* work?import win32serviceutil, win32service, win32event
class Service(win32serviceutil.ServiceFramework):
_svc_name_ = "EDMS-to-CG"
_svc_display_name_ = "EDMS-to-CG Syncer"
_svc_description_ = "Uploaded the EDMS database to Cartograph"
def __init__(self, args):
win32serviceutil.ServiceFramework.__init__(self, args)
self.hWaitStop = win32event.CreateEvent(None, 0, 0, None)
def SvcStop(self):
self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
win32event.SetEvent(self.hWaitStop)
def SvcDoRun(self):
pausetime = 60 * 1000
while True:
stopsignal = win32event.WaitForSingleObject(self.hWaitStop,
pausetime)
if stopsignal == win32event.WAIT_OBJECT_0: break
self.runOneLoop()
def runOneLoop(self):
import servicemanager
servicemanager.LogInfoMsg('Running')
if __name__ == '__main__':
win32serviceutil.HandleCommandLine(Service)--
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Re: How to build a Windows service using win32?
Giles Brown wrote: > Yeah. You've cleverly decided to simplify the "smallest > possible python service" by removing the > if __name__ == '__main__': Ha ha. :) Seriously, though, I removed that long after it was failing to work, and have since replaced it and it didn't affect a thing. Gabriel Genellina wrote: > Have you installed the pywin32 package from > https://sourceforge.net/projects/pywin32/ ? > The code skeleton looks OK to me. Indeed, I have win32 installed. :) I'm used to writing wxPython apps, even a small-scale video game, but services are a new and alien direction for me. :) Now, I did stumble upon the solution to this one this morning, after a fresh night of sleep: I re-ran "python tester.py install" I got a message that the service had been updated, and now it runs! Hooray! Any insight into why that would be the case? Does pythonservice.exe keep a cached copy or some such, so I'll have to re-install the service after code changes? -- http://mail.python.org/mailman/listinfo/python-list
