How to determine if an instance of your program is already running?

Mike Mike at kordik.net
Sun Dec 28 04:25:55 CET 2003


On Sat, 27 Dec 2003 03:42:15 -0800, David M. Wilson wrote:

> Mike <Mike at kordik.net> wrote...
> 
>> Can I get a list of currently running processes?
> 
> There is no portable way of doing it, however if you have a POSIX
> environment, you can parse the output of ps:
> 
>    def get_process_ids():
>       output = []
>       ps = os.popen('ps -o pid,command -C python')
>       ps.readline()
> 
>       for line in ps:
>          bits = line.lstrip()[:-1].split(' ')
>          output.append( (int(bits[0]), ' '.join(bits[1:])) )
> 
>       return output
> 
> 
> Don't hold me to this - I tested it on BSD and Linux, and as far as I
> know both the options I have used are portable.
> 
> 
> David.
Excellant. Thank you!




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