Programming Language › Python Errors and Exceptions Handling › Question #3971
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QWhat will be the output after the following statements? 
def abc():
    print(x)
    x = 10
abc()
x = 20

ID: #3971 Python Errors and Exceptions Handling 312 views
Question Info
#3971Q ID
Not SetDifficulty
Python Errors and Exceptions HandlingTopic
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  • A NameError ✔ ✖
  • B 20 ✔ ✖
  • C 10 ✔ ✖
  • D UnboundLocalError ✔ ✖
Correct Answer

Explanation

UnboundLocalError 
---------------------------------------------------------------------------
UnboundLocalError                         Traceback (most recent call last)
Input In [61], in ()
      2     print(x)
      3     x = 10
----> 4 abc()
      5 x = 20

Input In [61], in abc()
      1 def abc():
----> 2     print(x)
      3     x = 10

UnboundLocalError: local variable 'x' referenced before assignment
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