PCAP Exam - Question 93

Question

What is the expected behavior of the following code?

Examice · Accepted Answer

C
It raises an exception because there is no colon after Sub_B(Super).

deckman · Answer

I guess there's a Typo Error.

A Syntax error is not an Exception (you cannot do try: except on that).

macxsz · Answer

If text were right, answer is:
B. it outputs 1

Otherwise it raises an exception because it has a typo.

Efren · Answer

Answer is B. Infuriating to see that just missing a colon and whoever wrote this assume code is wrong..
>>> class Super:
	   def make(self):
		   return 0
	   def doit(self):
		   return self.make()

>>> class Sub_A(Super):
	   def make(self):
		   return 1

>>> class Sub_B(Super):
	   pass

>>> a=Sub_A()
	   
>>> b=Sub_B()
	   
>>>

>>> 
	   
>>> print(a.doit() + b.doit())

stuartz · Answer

One thing I've learned from doing these is to process like python does and check for syntax errors before doing anything else

Jnanada · Answer

If text were right, answer is:
B. it outputs 1

Jos015 · Answer

Always is C.
You can fix "class SubB(Super):" and see the result in question nº 120

class Super:
    def make (self):
        pass
    def doit (self):
        return self.make()

class Sub_A(Super):
    def make(self):
        return 1

class Sub_B(Super):
    pass

a = Sub_A()
b = Sub_B()
print(a.doit() + b.doit())

TypeError: unsupported operand type(s) for +: 'int' and 'NoneType'

sadako11 · Answer

Another question with a possible typo!
Without the typo the answer is B.

Rizos · Answer

There are no indentation or typo issues in the exam!!!

ricopro · Answer

>>> class Super:
...     def make(self):
...             return 0
...     def doit(self):
...             return self.make()
...
>>> class Sub_A(Super):
...     def make(self):
...             return 1
...
>>> class Sub_B(Super):
...     pass
...
>>> a = Sub_A()
>>> b = Sub_B()
>>> print(a.doit() + b.doit())
1
>>>

seaverick · Answer

#question 93
class Super:
    def make (self):
        return 0
    def doit (self):
        return self.make()

class Sub_A(Super):
    def make(self):
        return 1

class Sub_B(Super)
    pass

a = Sub_A()
b = Sub_B()
print(a.doit() + b.doit())
Tested, right answer C (it raises an exception)

PCAP Exam - Question 93

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