[Solved] Identify the problem in this code:class Test: def __init__(self): self._value = 100 def print_value(self): print(self.value) t = Test() t.print_value() | Python

Python - Encapsulation and Data Protection

Identify the problem in this code:

class Test:
    def __init__(self):
        self._value = 100

    def print_value(self):
        print(self.value)

t = Test()
t.print_value()

AAttributeError because self.value does not exist

BPrints 100 correctly

CSyntaxError due to missing underscore

DTypeError in print statement

Step-by-Step Solution

Solution:

Step 1: Check attribute names
The attribute is named _value, but the method tries to print self.value without underscore.
Step 2: Understand attribute access
Since self.value is not defined, accessing it causes an AttributeError.
Final Answer:
AttributeError because self.value does not exist -> Option A
Quick Check:
Attribute names must match exactly including underscores [OK]

Quick Trick: Attribute names must match exactly including underscores [OK]

Common Mistakes:

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