Difference between revisions of "CSC111 Exercises with Global Variables"

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(Case 3)
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>>>  
>>>  
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<font color="bue">A =  3</font>
<font color="bue">A =  3</font>
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<font color="red">Traceback (most recent call last):
<font color="red">Traceback (most recent call last):
 
 
   File "/Users/thiebaut/Desktop/PYTHON/globalExercises.py", line 8, in <module>
 
   File "/Users/thiebaut/Desktop/PYTHON/globalExercises.py", line 8, in <module>
 
     f1( 30 )
 
     f1( 30 )
 
   File "/Users/thiebaut/Desktop/PYTHON/globalExercises.py", line 4, in f1
 
   File "/Users/thiebaut/Desktop/PYTHON/globalExercises.py", line 4, in f1
 
     print( "f1", x, A )
 
     print( "f1", x, A )
UnboundLocalError: local variable 'A' referenced before assignment</font>
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UnboundLocalError: local variable 'A' referenced before assignment</font>
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>>>  
  
>>>
 
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Revision as of 18:17, 24 April 2014

--D. Thiebaut (talk) 15:57, 24 April 2014 (EDT)



Case 1



A = 3

def f1( x ):
    print( "f1", x, A )

print( "A = ", A )
f1( 30 )


>>> 
A =  3
f1 30 3
>>>




Case 2



def f1( x ):
    print( "f1", x, A )

A = 3
print( "A = ", A )
f1( 30 )


>>> 
A =  3
f1 30 3
>>>


Case 3





>>> 
A =  3
Traceback (most recent call last):
 File "/Users/thiebaut/Desktop/PYTHON/globalExercises.py", line 8, in <module>
   f1( 30 )
 File "/Users/thiebaut/Desktop/PYTHON/globalExercises.py", line 4, in f1
   print( "f1", x, A )
UnboundLocalError: local variable 'A' referenced before assignment

>>> 


Case





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Case





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Case





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