Skip to content
Contact →

02-Python Crash Course Exercises

Updated
17 Sept 2026
2 min read
2 sections
Page 4 of 117
Python & Machine Learning

Exercises

Answer the questions or complete the tasks outlined in bold below, use the specific method described if applicable.

What is 7 to the power of 4?

python
7 ** 4
Out · result
2401

Split this string:

s = "Hi there Sam!"

into a list.

python
s = "Hi there Same!"
s.split(" ")
Out · result
['Hi', 'there', 'Same!']

Given the variables:

planet = "Earth" diameter = 12742

Use .format() to print the following string:

The diameter of Earth is 12742 kilometers.

python
planet = "Earth"
diameter = 12742
python
f"The diameter of {planet} is {diameter} kilometers."
Out · result
'The diameter of Earth is 12742 kilometers.'

Given this nested list, use indexing to grab the word "hello"

python
lst = [1,2,[3,4],[5,[100,200,['hello']],23,11],1,7]
python
lst[3][1][2][0]
Out · result
'hello'

Given this nested dictionary grab the word "hello". Be prepared, this will be annoying/tricky

python
d = {'k1':[1,2,3,{'tricky':['oh','man','inception',{'target':[1,2,3,'hello']}]}]}

What is the main difference between a tuple and a list?

python
# Tuple is immutable

Create a function that grabs the email website domain from a string in the form:

user@domain.com

So for example, passing "user@domain.com" would return: domain.com

python
domainGet('user@domain.com')
Out · result
'domain.com'

Create a basic function that returns True if the word 'dog' is contained in the input string. Don't worry about edge cases like a punctuation being attached to the word dog, but do account for capitalization.

python
findDog('Is there a dog here?')
Out · result
True

Create a function that counts the number of times the word "dog" occurs in a string. Again ignore edge cases.

python
countDog('This dog runs faster than the other dog dude!')
Out · result
2

Use lambda expressions and the filter() function to filter out words from a list that don't start with the letter 's'. For example:

seq = ['soup','dog','salad','cat','great']

should be filtered down to:

['soup','salad']

python
seq = ['soup','dog','salad','cat','great']

Final Problem

You are driving a little too fast, and a police officer stops you. Write a function to return one of 3 possible results: "No ticket", "Small ticket", or "Big Ticket". If your speed is 60 or less, the result is "No Ticket". If speed is between 61 and 80 inclusive, the result is "Small Ticket". If speed is 81 or more, the result is "Big Ticket". Unless it is your birthday (encoded as a boolean value in the parameters of the function) -- on your birthday, your speed can be 5 higher in all cases.

python
def caught_speeding(speed, is_birthday):
    pass
python
caught_speeding(81,True)
Out · result
'Small Ticket'
python
caught_speeding(81,False)
Out · result
'Big Ticket'

Great job!