Great help. My Python program is a rewrite of a Perl program I wrote. An interesting exercise. The reason being it is targeted for a Raspberry Pi and for the Pi Python has the most support.
*Jim Dodgen* On Sat, May 7, 2016 at 6:38 PM, Ben Finney <ben+pyt...@benfinney.id.au> wrote: > Chris Angelico <ros...@gmail.com> writes: > > > On Sun, May 8, 2016 at 9:54 AM, Jim Dodgen <j...@dodgen.us> wrote: > > > The empty token is needed but useless, it is arg[0] most people just > > > repeat the program name > > > > Far from useless. It's how a process learns its own name, and yes, > > repeating the image name is the most common way to provide that. > > In particular, a program's name may not be its file name; it can be > called by one of several different names dependeing on how it is > installed on the system. > > Certainly the programmer writing the code cannot hard-code what the > command name will be that invokes the program. Only ‘sys.argv[0]’, read > at run time, can tell. > > > Indeed. In fact, I would strongly recommend never using an explicit > > fork/exec from Python - always use subprocess or equivalent. On > > non-Unix platforms, fork/exec may not be available, but subprocess can > > use other methods of invoking programs. > > I've already mentioned earlier, but to be sure: the ‘python-daemon’ > library <URL:https://pypi.python.org/pypi/python-daemon/> takes care of > the details of becoming a Unix daemon process. > > -- > \ “… a Microsoft Certified System Engineer is to information | > `\ technology as a McDonalds Certified Food Specialist is to the | > _o__) culinary arts.” —Michael Bacarella | > Ben Finney > > -- > https://mail.python.org/mailman/listinfo/python-list > -- https://mail.python.org/mailman/listinfo/python-list
