CSC111 Exercises with Global Variables

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--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





>>> 
<font color="bue">A =  3</font>
<font color="red">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</font>

>>>


Case





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Case





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Case





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Case





>>> 


>>>