python service problem

David Fraser davidf at
Fri Jun 25 16:31:54 CEST 2004

Peter Hansen wrote:
> Larry Bates wrote:
>  > "David Fraser" <davidf at> wrote:
>  >
>  >>One thing I noticed about the first computer is that, even after
>  >>uninstalling everything, there were some registry entries to do
>  >>with the installed services.  I could not delete these entries - I
>  >>got an access denied error (details below)
> [...]
>> I can tell you that I use InnoInstaller to do my installations
>> and have it "clean" up during uninstallation by removing the
>> left over registry keys.  If you cannot remove them, I would
>> suspect a "rights" issue (no administrative rights?).
> For what it's worth, in a possibly related situation we just
> encountered something similar.  In our case it was not a service,
> but a COM server (using ctypes or win32com, running as LocalServer32
> which launches pythonw.exe in the background).  On my machine
> I've had no troubles, but on a remote machine there were
> "access denied" errors whenever the developer tried to "-unregserver",
> which removes the registry entries.  I believe he tried removing
> them manually as well, but could not.  It was a long-distance
> thing, so I couldn't troubleshoot it myself...
> I theorized there was a leftover process running, but after
> checking over the task list he insisted there was not anything
> active that could be doing this.
> A reboot cured the problem, and so far we haven't seen it
> again.
> He definitely had administrative rights, so it wasn't that.  I'm
> positive it was a leftover "lock" of some kind, but I don't
> know anything about that area of Windows so we just moved on.
> My point is that it may not even be limited to the service
> stuff, but could be a little broader, maybe more fundamental
> to doing these kinds of background things using Python
> under Windows.
> -Peter

Very interesting. This has also occured on one of our customer sites 
where it was difficult to debug...
At least it has also occurred on our own machines so if we manage to 
work out more details I'll post them here, maybe it will solve your 
problem to...


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