Why modules are needed in Python - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the math module.

Python

import [1]

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Amath

Bsys

Crandom

Dos

Attempts:

3 left

💡 Hint

Common Mistakes

Using a module name unrelated to math.

Forgetting to import the module before using it.

The math module provides mathematical functions. We import it using import math.

2fill in blank

medium

Complete the code to use the square root function from the math module.

Python

result = math.[1](16)

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Apow

Bsin

Clog

Dsqrt

Attempts:

3 left

💡 Hint

Common Mistakes

Using pow which raises a number to a power.

Using unrelated functions like log or sin.

The sqrt function calculates the square root of a number.

3fill in blank

hard

Fix the error in the code to correctly use the random module to get a random number.

Python

import random
number = random.[1](1, 10)

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Arandint

Brandomint

Crand

Drandom

Attempts:

3 left

💡 Hint

Common Mistakes

Using randomint which does not exist.

Using rand or random which are incorrect here.

The correct function to get a random integer between two numbers is randint.

4fill in blank

hard

Fill both blanks to create a list of squares using a module function.

Python

import math
squares = [math.[1](x, 2) for x in range(1, 6) if x [2] 0]

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Apow

B>

C==

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using equality '==' instead of greater than '>'.

Using incorrect function names for power.

We use pow(x, 2) to square numbers and filter numbers greater than 0.

5fill in blank

hard

Fill all three blanks to create a dictionary of numbers and their square roots using the math module.

Python

import math
roots = { [1]: math.[2]([3]) for [1] in range(1, 5) }

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Anum

Bsqrt

Dval

Attempts:

3 left

💡 Hint

Common Mistakes

Using different variable names inside the comprehension.

Using a wrong function name instead of sqrt.

We use num as the variable name and sqrt function from math to get square roots.