[Tutor] Weird Error

[Ken G.]

I have use 'sleep.time(5)' in most of my program but the following error 
is throwing me for a loss.

import time
Traceback (most recent call last):
   File "/home/ken/Python2/Blood Glucose/BloodGlucose04ReadingTimed.py", 
line 63, in <module>
     time.sleep(2)
AttributeError: 'str' object has no attribute 'sleep'

Using the following is okay:

import time
print "Now"
time.sleep(2)
print "Later"