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Questions & Answers › Tag: Python 3 Application
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What is the output of the following code? class A: @classmethod def getC(self): print('In Class A, method getC.') class B(A): pass b = B() B.getC() b.getC()
AnsweredAdam asked 4 years ago • 
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Which of the following decorator function is used to create a class method?
AnsweredAdam asked 4 years ago • 
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What is the output of the following code? class A: @staticmethod def m1(self): print(‘Static Method’) @classmethod def m1(self): print(‘Class Method’) A.m1()
AnsweredAdam asked 4 years ago • 
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What is the output of the following code? def s1(x, y): return x*y class A: @staticmethod def s1(x, y): return x + y def s2(self, x, y): return s1(x, y) a = A() print(a.s2(3, 7))
AnsweredAdam asked 4 years ago • 
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Which of the following is true about property decorator?
AnsweredAdam asked 4 years ago • 
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If a property named temp is defined in a class, which of the following decorator statement is required for setting the temp attribute?
AnsweredAdam asked 4 years ago • 
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What is the output of the following code? class A: def __init__(self, x , y): self.x = x self.y = y @property def z(self): return self.x + self.y a = A(10, 15) b = A('Hello', '!!!') print(a.z) print(b.z)
AnsweredAdam asked 4 years ago • 
15583 views1 answers-1 votes
If a property named temp is defined in a class, which of the following decorator statement is required for deleting the temp attribute?
AnsweredAdam asked 4 years ago • 
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What is the output of the following code? class A: def __init__(self, x): self.__x = x @property def x(self): return self.__x a = A(7) a.x = 10 print(a.x)
AnsweredAdam asked 4 years ago • 
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Which of the following method definitions can a descriptor have?
AnsweredAdam asked 4 years ago • 
5023 views1 answers-1 votes
What is the output of the following code? class A: def __init__(self, value): self.x = value @property def x(self): return self.__x @x.setter def x(self, value): if not isinstance(value, (int, float)): raise ValueError('Only Int or float is allowed') self.__x = value a = A(7) a.x = 'George' print(a.x)
AnsweredAdam asked 4 years ago • 
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What is the output of the following code? class A: def __init__(self, val): self.x = val @property def x(self): return self.__x @x.setter def x(self, val): self.__x = val @x.deleter def x(self): del self.__x a = A(7) del a.x print(a.x)
AnsweredAdam asked 4 years ago • 
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Classes can also be decorated, if required, in Python.
AnsweredAdam asked 4 years ago • 
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What is the output of the following code? def smart_divide(func): def wrapper(*args): a, b = args if b == 0: print('oops! cannot divide') return return func(*args) return wrapper @smart_divide def divide(a, b): return a / b print(divide.__name__) print(divide(4, 16)) print(divide(8,0))
AnsweredAdam asked 4 years ago • 
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What is the output of the following code? def star(func): def inner(*args, **kwargs): print("*" * 3) func(*args, **kwargs) print("*" * 3) return inner def percent(func): def inner(*args, **kwargs): print("%" * 3) func(*args, **kwargs) print("%" * 3) return inner @star @percent def printer(msg): print(msg) printer("Hello")
AnsweredAdam asked 4 years ago • 
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What is the output of the following code? from functools import wraps def decorator_func(func): @wraps(func) def wrapper(*args, **kwargs): return func(*args, **kwargs) return wrapper @decorator_func def square(x): return x**2 print(square.__name__)
AnsweredAdam asked 4 years ago • 
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What is the output of the following code? def bind(func): func.data = 9 return func @bind def add(x, y): return x + y print(add(3, 10)) print(add.data)
AnsweredAdam asked 4 years ago • 
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which-of-the-following-is-true-about-decorators
AnsweredAdam asked 4 years ago • 
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A closure is always a function.
AnsweredAdam asked 4 years ago • 
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What is the output of the following code? v = 'Hello' def f(): v = 'World' return v print(f()) print(v)
AnsweredAdam asked 4 years ago • 
4909 views1 answers0 votes
What is the output of the following code? def f(x): return 3*x def g(x): return 4*x print(f(g(2)))
AnsweredAdam asked 4 years ago • 
4646 views1 answers0 votes
Which of the following is false about the functions in Python?
AnsweredAdam asked 4 years ago • 
5697 views1 answers-1 votes
A closure does not hold any data with it.
AnsweredAdam asked 4 years ago • 
7958 views1 answers0 votes
What is the output of the following code? def outer(x, y): def inner1(): return x+y def inner2(z): return inner1() + z return inner2 f = outer(10, 25) print(f(15))
AnsweredAdam asked 4 years ago • 
10033 views1 answers-1 votes
What is the output of the following code? def multipliers(): return [lambda x : i * x for i in range(4)] print([m(2) for m in multipliers()])
AnsweredAdam asked 4 years ago • 
16449 views1 answers0 votes
Which of the following method is used to fetch next one row of a query result?
AnsweredAdam asked 4 years ago • 
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Which of the following package provides the utilities to work with MySQLDB database?
AnsweredAdam asked 4 years ago • 
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Which of the following package provides the utilities to work with postgreSQL database?
AnsweredAdam asked 4 years ago • 
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Django web framework uses SQLAlchemy as Object-relational mapper.
AnsweredAdam asked 4 years ago • 
7129 views1 answers1 votes
While using Object relation mappers for database connectivity, a table is treated as ____________.
AnsweredAdam asked 4 years ago • 
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