Static methods behavior in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a static method inside the class.

Python

class MyClass:
    @staticmethod
    def greet():
        print([1])

MyClass.greet()

Drag options to blanks, or click blank then click option'

Aself

Bcls

Cgreet

D"Hello from static method!"

Attempts:

3 left

💡 Hint

Common Mistakes

Using self or cls as parameters in static methods.

Trying to access instance variables inside static methods.

Static methods do not take self or cls as parameters. They behave like regular functions inside the class. Here, the method prints a string.

2fill in blank

medium

Complete the code to call the static method correctly from an instance.

Python

class Calculator:
    @staticmethod
    def add(a, b):
        return a + b

calc = Calculator()
result = calc.[1](5, 7)
print(result)

Drag options to blanks, or click blank then click option'

Aself

Badd

CCalculator

Dsum

Attempts:

3 left

💡 Hint

Common Mistakes

Trying to call static method using class name without parentheses.

Using incorrect method names.

Static methods can be called from an instance using the method name. Here, calc.add(5, 7) calls the static method add.

3fill in blank

hard

Fix the error in the static method definition to make it work.

Python

class Utils:
    @staticmethod
    def multiply([1], b):
        return a * b

print(Utils.multiply(3, 4))

Drag options to blanks, or click blank then click option'

Aa

Bself

Ccls

Dx

Attempts:

3 left

💡 Hint

Common Mistakes

Using self or cls as the first parameter in static methods.

Not defining parameters needed for the method.

Static methods do not receive self or cls automatically. You must define all parameters explicitly. Here, 'a' is the first parameter.

4fill in blank

hard

Fill both blanks to create a static method that returns the square of a number.

Python

class MathOps:
    @staticmethod
    def square([1]):
        return [2] * [1]

print(MathOps.square(6))

Drag options to blanks, or click blank then click option'

Anum

Cself

Dcls

Attempts:

3 left

💡 Hint

Common Mistakes

Using self or cls as parameters in static methods.

Using different variable names inside the method.

The static method takes one parameter 'num' and returns its square by multiplying it by itself.

5fill in blank

hard

Fill all three blanks to create a static method that filters and returns even numbers from a list.

Python

class Filter:
    @staticmethod
    def evens([1]):
        return [[2] for [3] in numbers if [2] % 2 == 0]

print(Filter.evens([1, 2, 3, 4, 5, 6]))

Drag options to blanks, or click blank then click option'

Anumbers

Bnum

Dself

Attempts:

3 left

💡 Hint

Common Mistakes

Using self as a parameter in static methods.

Using inconsistent variable names inside the list comprehension.

The static method takes a list 'numbers', iterates over it with 'num', and returns a list of even numbers.