I am not familiar with this approach (and I am working on a machine where I do not have admin privileges), but an alternative is to download the Windows extensions for Python by Mark Hammond (et. al.) at:

http://sourceforge.net/projects/pywin32/

which makes writing a Windows service simple as the following example illustrates:

=====================================================
# SmallestService.py
#
# A sample demonstrating the smallest possible service written in Python.

import win32serviceutil
import win32service
import win32event

class SmallestPythonService(win32serviceutil.ServiceFramework):
    _svc_name_ = "SmallestPythonService"
    _svc_display_name_ = "The smallest possible Python Service"
    def __init__(self, args):
        win32serviceutil.ServiceFramework.__init__(self, args)
        # Create an event which we will use to wait on.
        # The "service stop" request will set this event.
        self.hWaitStop = win32event.CreateEvent(None, 0, 0, None)

    def SvcStop(self):
        # Before we do anything, tell the SCM we are starting the stop process.
        self.ReportServiceStatus(win32service.SERVICE_STOP_PENDING)
        # And set my event.
        win32event.SetEvent(self.hWaitStop)

    def SvcDoRun(self):
        # We do nothing other than wait to be stopped!
        win32event.WaitForSingleObject(self.hWaitStop, win32event.INFINITE)

if __name__=='__main__':
    win32serviceutil.HandleCommandLine(SmallestPythonService)
=====================================================

Just type:

SmallestService.py -h

at a shell prompt to see the options for installing/removing etc.

-- jv



Tor Erik Sønvisen wrote:
Hi,
 
I'm trying to execute a python script as a windows service.
I found some information at:
 
The steps I've taken are the following:
 
1. Downloaded Windows Resource Kits
2. Executed instsrv.exe nameOfService srvany.exe
3. In registry added a key Parameters in HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\nameOfService entry
4. Under Parameters added three string values:
    4.1: Application                REG_SZ                    C:\Python25\pythonw.exe
    4.2: AppDirectory            REG_SZ                    C:\Python25
    4.3: AppParameters         REG_SZ                    C:\Documents and Settings\torerik\My Documents\Apps\SARImageProcessing\time.py
5. Started nameOfService in Control Panel --> Adminstrative Tools --> Services
 
This is not working however as the python script (time.py) looks like this:
 
import time
 
i = 0
while True:
    f = open(r'C:\testService.txt', 'wb')
    f.write(str(i))
    f.close()
    i += 1
    time.sleep(1)
 
and no file named testService.txt is created.
I've tried executing the script normally, and it works like a charm...
Any ideas?
 
regards
 
 

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