# Norman McCord

import urllib.request

# Download file and read

url = "https://raw.githubusercontent.com/MicrosoftLearning/intropython/master/elements1_20.txt"

filename = "elements1_20.txt"

urllib.request.urlretrieve(url, filename)

# Read file line-by-line

element_list = []

file = open(filename, "r")

line = file.readline()

while line:

element_list.append(line.strip().lower())

line = file.readline()

file.close()

# Get 5 unique user inputs

def get_names():

inputs = []

print("Welcome Norman McCord, list any 5 of the first 20 elements in the Periodic Table.")

while len(inputs) < 5:

entry = input("Enter the name of an element: ").strip().lower()

if entry == "q": # the instructions didn't account for the user deciding to just quit, so I put this here. Still grades inputs based on 5 answers. Ex: if you enter 3 right answers and quit, you'll only get 60%.

break

elif entry == "":

continue

elif entry in inputs:

print(f"{entry.title()} was already entered")

else:

inputs.append(entry)

return inputs

# Compare user input with element list using range()

def check_answers(user_answers, valid_elements):

correct = []

incorrect = []

for i in range(len(user_answers)):

answer = user_answers[i]

if answer in valid_elements:

correct.append(answer.title())

else:

incorrect.append(answer.title())

return correct, incorrect

# Run quiz

quiz_answers = get_names()

correct_answers, incorrect_answers = check_answers(quiz_answers, element_list)

score = len(correct_answers) * 20

# Print results

print(f"\n{score} % correct")

print("Found:", " ".join(correct_answers))

print("Not Found:", " ".join(incorrect_answers))