Python Code Error

Question

Hi
I am using built in functions and libraries for this python code and I am trying to execute this code, but it is showing NameError.
 
import time
   
# slower (Without map())
start = time.clock() 
s = 'geeks'
U = []
for c in s:
    U.append(c.upper())
print (U)
elapsed = time.clock()
e1 = elapsed - start
print ("Time spent in function is: ", e1)
   
# Faster (Uses builtin function map())
s = 'geeks'
start = time.clock() 
U = map(str.upper, s) 
print (U)
elapsed = time.clock()
e2 = elapsed - start
print ("Time spent in builtin function is: ", e2)
 
Thanks.

Answer

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Answer

Kind of wild how a simple example turns into a confusing error, especially with something as basic as timing and string operations. The mix of older functions like time.clock() and newer Python behavior can easily trip people up. I’ve hit similar issues where the code itself looks fine, but the environment or version quietly breaks it

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Python Code Error