lesson 6 homework

homework.py

# Homework: Lists

# 🔥Read carefully until the end before you start solving the exercises🔥

# Practice the Basics 💪🏻

# Empty, Pre-populated, and Lists within Lists

# You can uncomment or type the necessary code on each task

# ---------------------------------------------------------------------
# Task 1. Create three lists:

# List #1: Create an empty list and then use append() to populate it with the names of three of your friends.
# List #2: Create the same list, but use the syntax to create it pre-populated.
# List #3: Create the same list, but each element should be a list, 
# where the first sub-element is the friend's name 
# and the second sub-element is their age.

# List 1:
list_1 = []
list_1.append('Tio')
list_1.append('Davo')
list_1.append('Alex')
print(list_1)

# List 2:
list_2 = ['Tio', 'Davo', 'Alex']
print(list_2)

# List 3:
list_3 = [
    [['Tio'] , [16]],
    [['Davo'] , [16]],
    [['Alex'] , [17]]
]
print(list_3)

# ---------------------------------------------------------------------
# Task 2. Retrieve elements from a List

# Create print statements to retrieve the following elements from the previous lists:
# - From List 2: Retrieve the name of the second friend.
# - From List 3: Retrieve the age of the last friend you put in the list.

# Name of second friend
second_friend_name = list_2[1]
print(second_friend_name)

# Age of the last friend of the list
last_friend_age = list_3[2][1]
print(last_friend_age)

# ---------------------------------------------------------------------
# Task 3. Remove elements from a List

# From the lists provided, remove the requested elements. Easy peazy.

cities = ["Houston", "Dallas", "Austin"]
fruits = ["apple", "banana", "orange"]

# Remove Austin from cities without using its index
cities.remove('Austin')

# Remove the last element from fruits using negative indexes
del fruits[-1]
print(cities)
print(fruits)

# ---------------------------------------------------------------------
# Task 4. Verify if an element exists in a list

# Given the provided list, write code that prints `YES` if the list contains the word `cheese`

# The list
pantry = ["ham", "bread", "cheese"]
if 'cheese' in pantry:
    print("YES")
else:
    print("NO")

       
# ---------------------------------------------------------------------
# Task 5. Sorting and Reversing

# Given the provided list, write code that sorts and reverses it, as required.

numbers = [6, 34, 17, 9, 2, 11, 57, 9, 32]
print(numbers)

# Write code that sorts the list in ascending order without disturbing the original.
sorted_numbers = list(sorted(numbers))
print(sorted_numbers)

# Write code that reverses (flips) the list without disturbing the original.
# Remember that in this case, casting is required.
reversed_numbers = list(reversed(numbers))
print(reversed_numbers)

# Write code that sorts the list in place, modifying the original.
numbers.sort()
print(numbers)

# Write code that reverses (flips) the list in place, modifying the original.
numbers.reverse()
print(numbers)

# ---------------------------------------------------------------------
# Task 6. Stitching and Slicing

# You are given two lists with names of days of the week:

# - `work_days` contains the work week days (Mon-Fri)
# - `rest_days` contains the weekend days (Sat-Sun)


# Create a third list that contains the _concatenation_ of the previous two. 
# Call it 'full_week'

# Now, write python code that prints a slice from 'full_week' with the work days.
work_days = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday']
rest_days = ['Saturday', 'Sunday']

# Concatenate work_days and rest_rays
full_week = work_days + rest_days

# Slice with the work days
print(full_week[0:5])
# ---------------------------------------------------------------------
# Task 7. Aggregators and Helpers

# Given a list of numbers, use helpers and aggregators to answer the questions:

# - What's the lowest number?
# - What's the highest number?
# - What's the sum of all the numbers in the list?
# - How many times is the number 9 in the list?
# - How many total elements are in the list?

numbers = [6, 34, 17, 9, 2, 11, 57, 9, 32]

# Lowest number
print(min(numbers))

# Highest number
print(max(numbers))

# Sum of everything
print(sum(numbers))

# Count number 9s
print(numbers.count(9))

# Total number of elements
print(len(numbers))

## Exercises 🏋🏻

# ---------------------------------------------------------------------
# Exercise 1. The Biography Creator

# Create a program that will ask you for the following items and stores them in a list for later usage:

# - Your Name
# - Your Age
# - The name of the city where you were born

user_data = []
name = input("Name: ")
age = int(input("Enter your age: "))
city = input("Enter the city you were born: ")

user_data.append([name])
user_data.append([age])
user_data.append([city])

bio = f"My name is {user_data[0]} , I am {user_data[1]} years old and I was born in the city {user_data[2]}."
print(bio)

# The program should use a variable with a string that will be used as a template. 
# This template should be a sentence that can be used to build the person's biography.

# Fox example:

# biography = "My name is <NAME>, I'm <AGE> years old and I was born in <CITY>."
        
# Tips: 
# - Use f-strings with placeholders to build the actual template, with elements of the list as values.
# - Use input() to gather the data.
# - Use print() at the end, to show the user's biography.

# Declare an empty list
# user_data = []

# Gather user input
# name = input("Name: ")
# age = input("Age: ")
# city = input("City: ")

# Add user input to the list
# user_data.???(name)
# user_data.???(age)
# user_data.???(city)

# Declare your template. Use list elements as values.
# biography = f"???"

# Show the user's biography
# print(biography)

# ---------------------------------------------------------------------
# Exercise 2. The Card Deck ♦️♥️♠️♣️

# You will be provided with a couple lists that contain the cards for a card deck. 
# One of the lists contains the numbers, and the other one contains the faces. 

# You will be asked to fill in the blanks to print out certain cards for a card game you've been working on.

# 🔥 Tip: You might want to stitch them together first.

# Here are the card decks.
numbers = ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10']
faces = ['J', 'Q', 'K']

# Concatenate them first.
card_deck = numbers + faces

# Print out the numbers 1 to 6.
print(card_deck[0:6])

# Print out the last 3. Do it using POSITIVE indexes.
print(card_deck[10:13])

# Print out the last 3 (same as before), but using NEGATIVE indexes.
print(card_deck[-3:])

# Print out everything EXCEPT the first and last.
print(card_deck[1:-1])

# What would you use so the printout includes the following:
# Hint: It's every third card of the full deck.
# ['1', '4', '7', '10', 'K']
print(card_deck[::3])

# Print out the EVEN numbers. No faces.
even_numbers = [num for num in numbers if int(num) % 2 == 0]
print(even_numbers)

# ---------------------------------------------------------------------
# Exercise 3. The Steps Tracker 👟

# Walking is a great way to improve one's health, and it can be fun! 
# Doctors recommend 10,000 steps per day! You would like to know how many steps are YOU taking per day and per week.

# Write a program that will ask you the number of steps taken each day of the week, for one week. 
# The program should put the step counts in a list, where index 0 is the number for Monday, 
# index 1 is the number for Tuesday, and so on.
 
# Once you have all the steps counts, answer the following questions:
# - How many steps you took on Wednesday?
# - How many steps you took on the work days (Mon - Fri)?
# - How many steps total did you take over the whole week?
# - What was the least number of steps you took on a day?
# - What was the most number of steps you took on a day? 

steps = []

# Collect steps for each day, converting inputs to integers
steps.append(int(input('Steps for Monday: ')))
steps.append(int(input('Steps for Tuesday: ')))
steps.append(int(input('Steps for Wednesday: ')))
steps.append(int(input('Steps for Thursday: ')))
steps.append(int(input('Steps for Friday: ')))
steps.append(int(input('Steps for Saturday: ')))
steps.append(int(input('Steps for Sunday: ')))

# Steps on Wednesday
print("Steps on Wed:" , steps[2])

# Steps on the workdays (Mon - Fri)
work_days_steps = steps[0:5]
print(work_days_steps)

# Total steps over the whole week
print("the sum of the steps is:" , sum(steps))

# Least number of steps
print("the minimum amount of steps was:" , min(steps))

# Highest number of steps
print("the highest amount of steps was:" , max(steps))

Exercise 1. The Biography Creator

In this exercise you should try a different solution because yours is appending the user data as a nested list.

Here's a corrected version of your code:

user_data = []

name = input("Name: ")
age = int(input("Enter your age: "))
city = input("Enter the city you were born: ")

user_data.append(name) # add without brackets
user_data.append(age)
user_data.append(city)

bio = f"My name is {user_data[0]} , I am {user_data[1]} years old and I was born in the city {user_data[2]}."

print(bio)