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avoid script running twice

I wish to prevent a python script from running twice; it's an hourly job, but
can take too long.

My simplistic script looks like
def main():
fn = 'MARKER'
if os.path.isfile(fn):
log('%s: hourly job running already' % formatTime())
f = open(fn,'w')

if __name__=='__main__':

but it occurs to me that I might be killed with prejudice during the long
running work(). Is there a smart way to avoid running simultaneously.
Robin Becker

Jun 18 '07 #1
0 1092

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