[python-win32] How to determine whether program running as service?

[David Rushby]

> > What's the canonical way to programmatically determine whether a
> > pywin32-based Python program is running as a Windows service or as
> > a regular process?
> 
> I don't see one :(  I would be happy to add one  - eg,
> sys.serviceexecutable being set to the host executable when 
> launched as a service.

Why not something like this:
  servicemanager.RunningAsService() -> bool

A RunningAsService predicate would keep the functionality grouped with
other service-related predicates (e.g., servicemanager.Debugging)),
would be ultra-simple for client code, and would encapsulate the
service-mode-detection logic, insulating it from radical future changes
of the sort that occurred between builds 1xx and 2xx.

My previous needToReplaceStdStreams code could become as simple (and
readable) as:
------------------------------------------------
import servicemanager
needToReplaceStdStreams = servicemanager.RunningAsService() and not
servicemanager.Debugging()
------------------------------------------------

> That doesn't help you now though.

Actually, it would; this issue alone has prevented me from migrating to
pywin32 >= 200.


		
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