>>> def log_times(file, find, times):
... count = 0
... for line in file:
... if find in line:
... count +=1
... if count >= times:
... return True
... return False
...
>>> file = open("/var/log/system.log")
>>> log_times(file, "com.apple.quicklook", 2)
True
>>> file = open("/var/log/system.log")
>>> log_times(file, "com.apple.quicklook", 5)
False