Monday, June 15, 2026
Latest:

Questions & Answers

(Frequently asked questions)

Questions & Answers › Tag: Data Science Basics
Filter:AllOpenResolvedClosedUnanswered
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 • 
2273 views1 answers0 votes
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 • 
26626 views1 answers0 votes
Classes can also be decorated, if required, in Python.
AnsweredAdam asked 4 years ago • 
4985 views1 answers0 votes
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 • 
10821 views1 answers0 votes
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 • 
4870 views1 answers0 votes
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 • 
8569 views1 answers0 votes
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 • 
6268 views1 answers0 votes
which-of-the-following-is-true-about-decorators
AnsweredAdam asked 4 years ago • 
14506 views1 answers0 votes
A closure is always a function.
AnsweredAdam asked 4 years ago • 
7956 views1 answers0 votes
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 • 
4954 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 • 
4706 views1 answers0 votes
Which of the following is false about the functions in Python?
AnsweredAdam asked 4 years ago • 
5738 views1 answers-1 votes
A closure does not hold any data with it.
AnsweredAdam asked 4 years ago • 
8038 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 • 
10086 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 • 
16570 views1 answers0 votes
Which of the following method is used to fetch next one row of a query result?
AnsweredAdam asked 4 years ago • 
3876 views1 answers0 votes
Which of the following package provides the utilities to work with MySQLDB database?
AnsweredAdam asked 4 years ago • 
7207 views1 answers0 votes
Which of the following package provides the utilities to work with postgreSQL database?
AnsweredAdam asked 4 years ago • 
6566 views1 answers0 votes
Django web framework uses SQLAlchemy as Object-relational mapper.
AnsweredAdam asked 4 years ago • 
7167 views1 answers1 votes
While using Object relation mappers for database connectivity, a table is treated as ____________.
AnsweredAdam asked 4 years ago • 
9175 views1 answers0 votes
Which of the following package provides the utilities to work with MongoDB database?
AnsweredAdam asked 4 years ago • 
4113 views1 answers0 votes
pyodbc is an open source Python module that makes accessing ODBC databases simple.
AnsweredAdam asked 4 years ago • 
5607 views1 answers0 votes
Which of the following package provides the utilities to work with Oracle database?
AnsweredAdam asked 4 years ago • 
8490 views1 answers0 votes
Which of the following method is used to insert multiple rows at a time in sqlite3 datatbase?
AnsweredAdam asked 4 years ago • 
5187 views1 answers0 votes
which-of-the-following-method-is-used-to-fetch-all-the-rows-of-a-query-result
AnsweredAdam asked 4 years ago • 
3666 views1 answers0 votes
What does the search method of re module do?
AnsweredAdam asked 4 years ago • 
5575 views1 answers0 votes
In a match found by a defined pattern, how to group various portions of a match?
AnsweredAdam asked 4 years ago • 
9155 views1 answers-1 votes
Which of the following methods of a match object mo is used to view the grouped portions of match in the form of a tuple?
AnsweredAdam asked 4 years ago • 
14175 views1 answers0 votes
Which of the following modules support regular expressions in Python?
AnsweredAdam asked 4 years ago • 
3078 views1 answers0 votes
Which of the following expression is used to compile the pattern p?
AnsweredAdam asked 4 years ago • 
8294 views1 answers0 votes
1…5678
Copyright © 2026 EASTER SCIENCE. All rights reserved.