Recipe 67663 revision 1

from win32event import CreateMutex
from win32api import GetLastError
from winerror import ERROR_ALREADY_EXISTS
from sys import exit

handle = CreateMutex ( None, 1, 'A unique mutex name' )

if GetLastError ( ) == ERROR_ALREADY_EXISTS:
# take appropriate action if this is the second
# instance of this script; for example,
    print 'Oh! dear, I exist already.'
    exit ( 1 )

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History

• revision 1 (22 years ago)