Based on the Person class implemented in the HandsOn lectures, which of the following correctly condenses the body of the can_vote() method in the Person class. A person must be 18 years old to be able to vote.

Question

Based on the Person class implemented in the HandsOn lectures, which of the following correctly condenses the body of the can_vote() method in the Person class. A person must be 18  years old to be able to vote.

BlackTom AI · Accepted Answer

Here is a step-by-step analysis of each option to determine which correctly condenses the can_vote() method.
Option 1: 'def can_vote(self):
   	return self.age >= 18'
This version uses the typical Python method signature for a class, and it compares the instance attribute age to 18 with a proper >= operator. If age is stored as an integer attribute on the Person object, this is the correct, concise implementation.
Option 2: 'def can_vote(self):
  	return self.age() >= 18'
In this case, the code calls self.age() as if age were a method. Unless age is defined as a method (e.g., def age(self): ...), this will raise a TypeError saying 'age' object is not callable or, more plausibly, an AttributeError if age is an int attribute. Since the prompt describes age as an attribute, this is incorrect.
Option 3: 'def can_vote(self):
  	return age(self) >= 18'
Here, age is treated as a standalone function, invoked with self as an argument. Unless a global function named age exists that accepts a Person object, this will fail. In the standard class design, age is an attribute, not a free function, so this is not correct.
Option 4: 'def can_vote(self, other):
 other = 18
 	return self.age >= other.age'
This definition adds an extra parameter other, which is not part of the typical can_vote() signature. It then sets other to 18, shadowing the parameter, and attempts to access other.age, which would be invalid since 18 is an int and has no age attribute. Moreover, comparing self.age to other.age is nonsensical in this context. Overall, this option introduces multiple errors and fails to implement the intended boolean check.
In summary, Option 1 is the correct and straightforward implementation that aligns with the description: a person must be 18 years old to vote, implemented by returning whether self.age is greater than or equal to 18. The other options misuse method vs. attribute conventions, callability, or parameterization, leading to runtime errors or logical flaws.

Based on the Person class implemented in the HandsOn lectures, which of the following correctly condenses the body of the can_vote() method in the Person class. A person must be 18 years old to be able to vote.单项选择题

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