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#!/usr/bin/python"""homeunison.py"""import os, sys, timelockfile = "/tmp/homeunison.lock"locked = 0for i in range(100):    if locked:        break            try:        if not os.path.exists(lockfile):            open(lockfile, "w").write("%d" % os.getpid())            continue    except:        print "not found, not writing"        pass            try:        if os.path.exists(lockfile):            pid = open(lockfile).readline()            if pid.isdigit():                if int(pid) == os.getpid():                    locked = 1                    continue    except:        pass            try:        if os.path.exists("/proc/%s" % pid):            if not "homeunison" in open("/proc/%s/cmdline").readline():                os.remove(lockfile)                continue    except:        pass    time.sleep(0.15)if locked:    """Do Stuff"""try:    os.remove(lockfile)except:    pass