gs gs109 Classes and Objects - Python Classes and Objects - Quiz No.3
gs gs109 Python Quiz
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Question 2: What is hasattr(obj,name) used for?
To access the attribute of the object
To delete an attribute
To check if an attribute exists or not
To set an attribute
Question 3: What will be the output of the following Python code?
class stud: def __init__(self, roll_no, grade): self.roll_no = roll_no self.grade = grade def display (self): print("Roll no : ", self.roll_no, ", Grade: ", self.grade) stud1 = stud(34, 'S') stud1.age=7 print(hasattr(stud1, 'age'))
Error as age isn’t defined
True
False
7
Question 4: What is delattr(obj,name) used for?
To print deleted attribute
To delete an attribute
To check if an attribute is deleted or not
To set an attribute
Question 6: What will be the output of the following Python code?
class student: ‘Base class for all students’ def __init__(self, roll_no, grade): self.roll_no = roll_no self.grade = grade def display (self): print("Roll no : ", self.roll_no, ", Grade: ", self.grade) print(student.__doc__)
Exception is thrown
__main__
Nothing is displayed
Base class for all students
Question 7: What does print(Test.__name__) display (assuming Test is the name of the class)?
()
Exception is thrown
Test
__main__
