Will get the amount of elements corresponding to the difficulty And then ask the question with those, and only those elements in it Will also have the answer for the question stored in a separate variable

02make_question.py

"""Component 2 of elements Quiz project - making the question to ask the user
Will get the amount of elements corresponding to the difficulty
And then ask the question with those, and only those elements in it
Will also have the answer for the question stored in a separate variable
Written by Nathan Smith
05/08/2021"""

import ast
import random


# Function that searches the dict specified
# for the value that corresponds to a key.
# There is not a built-in function that does this so I had to make it myself
def search_dict(value, dictionary):
    for thing in dictionary:
        if dictionary[thing] == value:
            return thing
# Raises ValueError if the value is not found in the dict
    raise ValueError


# Opens the file "Elements.txt" and makes it into dictionary form
file = open("Elements.txt", "r")
contents = file.read()
my_dict = ast.literal_eval(contents)
file.close()
question_element = ""
answer_element = ""
question = ""
QUESTION_AMOUNT = 50

# Making a copy of the dictionary for the elements I'm actually going to use
using_dict = my_dict.copy()


# Gets the difficulty and takes off the required amounts of elements
# from the end of the dictionary
dif = int(input("Difficulty? "))
if 1 <= dif <= 4:
    for i in range(100 - (dif * 20) + 18):
        using_dict.popitem()
else:
    pass

# Runs it 50 times to make sure the
# questions are accurate according to the difficulty
for i in range(QUESTION_AMOUNT):
    # If foo is 1, the question will be about the element
    # (Asking what the element with a particular symbol is)
    # If it is 2, it's the opposite
    foo = random.randint(1, 2)
    # Randomly chooses a symbol from the using_dict
    bar = random.choice(list(using_dict.values()))
    if foo == 1:
        question_element = bar
        # Searches the dict for the element that corresponds to the symbol
        answer_element = (search_dict(question_element, my_dict))
        question = "What is the name of the element with the chemical " \
                   "symbol: {}?         (" \
                   "Answer: {})".format(question_element, answer_element)
        print(question)
    else:
        # Same as above, sets the question and answer
        question_element = (search_dict(bar, using_dict))
        answer_element = bar
        question = "What is the chemical symbol of the " \
                   "element: {}?        (" \
                   "Answer: {})".format(question_element, answer_element)
        print(question)