Develop Reference

Hello. I am coding a music quiz game in Python. Correct answers are not authenticated, and I have no idea why

My music quiz game takes a list of songs from an external file named 'Songs.txt' and takes the first letter of each word in one song (out of 7, picked randomly) and then displays the artist of that song. The user then has two guesses, and the appropriate points are then awarded:
# MUSIC QUIZ GAME
import random
# Import the 'random' function in order to select a random number and get a random song.
import time
# Importing the ability to 'pause' to give the program a more professional feel.
import sys
# Import the ability to close the program.
import linecache
# Import the ability to get a specific line from a file.
userscore = 0
# The userscore is automatically zero, because they have just started playing.
random_picker = random.randint(1,7)
# Using the random operator, we pick a random number from 1 to 5, because there are 5 songs. We will use this to select the same random line from two files.
# ----- Accessing the Songs database ----- #
# Open the file.
file = open("Songs.txt", "r")
# Get the line from file. The line number is determined by the 'random_picker' used earlier.
song = linecache.getline(r"Songs.txt", random_picker).upper()
# Split the line into individual words.
song_prompt = song.split()
# ----- Accessing the Artists database ----- #
file = open("Artists.txt", "r")
artist = linecache.getline(r"Artists.txt", random_picker)
# -----Giving the user the prompt ----- #
print("\nYour prompt is: ")
# Get only the first letter of each word in the prompt, then output them.
for word in song_prompt:
print(word[0])
print("by " + artist)
guess1 = input("Enter your song name guess:\n")
if guess1 == song:
print("Well done!")
userscore = userscore + 3
print("Your score is " + str(userscore) + ".")
elif guess1 != song:
print("Wrong guess.")
guess2 = input("What is your second guess for the song name?\n")
if guess2 == song:
print("Well done.")
userscore = userscore + 1
print("Your score is " + str(userscore) + ".")
else:
print("You have gotten both guesses wrong.")
sys.exit()
However, on both guesses, with the right song, uppercase, lowercase, capitilised titles, etc, the software always deems the answer wrong. Is it to do with the way the file is read? I'm not quite sure. If anyone could help me with this issue, that would be much appreciated.
The 'Songs.txt' file contains this list:
Let It Happen
New Gold
Shotgun
Metamodernity
Bad Guy
Blank Space
Bohemian Rhapsody
The 'Artists.txt' file contains this list:
Tame Impala
Gorillaz
George Ezra
Vansire
Billie Eillish
Taylor Swift
Queen
For example, the quiz says:
Your prompt is:
N
G
by Gorillaz
Enter your song name guess:
New Gold
Wrong guess.
What is your second guess for the song name?
NEW GOLD
You have gotten both guesses wrong.
I am expecting to get the correct answer.

I think you might also have an issue with the way you read the .txt files.
When you run the following line: song = linecache.getline(r"Songs.txt", random_picker).upper()
The value assigned to song will be something like 'LET IT HAPPEN\n'
In order to avoid this you can use the .rstrip() method:
song = linecache.getline(r"Songs.txt", random_picker).upper().rstrip('\n')

Running a function inside of an if statement

I have a program that is supposed to show all classes in the external .txt file when the user presses "V", and is supposed to allow the user to lookup a specific class based off of its course code (EX. user types csce101 and it will print "Introduction to computer concepts"). However, I can't get the V and L functions to work properly. As it sits currently, the V function is only working because I called a break... but after it prints all the classes, it asks the user for a course code when it is not supposed to. That is what the L function is supposed to do. I am unsure on how to call a function inside of an if/elif loop. The function name just comes up as undefined. Is it possible with the way I have the code setup?
Python Code:
while True:
command = input("(V)iew, (L)ookup, or (Q)uit: ")
if command == "v":
break
elif command == "l":
print(f"{code}")
elif command == "q":
print("Goodbye!")
quit()
else:
print("Invalid command")
def getCourses():
courses = {}
with open("assignments/assignment-19/courses.txt") as file:
for line in file:
data = line.split(':')
code = data[0].strip()
className = data[1].strip()
courses[code] = className
return courses
def getDescription(courseList):
code = input("Enter course code: ").strip().lower()
if code in courseList:
print(f"{courseList[code]}")
else:
print(f"Sorry {code} is not in our system")
courseList = getCourses()
for classes in courseList:
print(f"{classes}: {courseList[classes]}")
getDescription(courseList)
.txt file contents
csce101: Introduction to Computer Concepts
csce102: General Applications Programming
csce145: Algorithmic Design 1
csce146: Algorithmic Design 2
csce190: Computing in the Modern World
csce201: Introduction to Computer Security
csce204: Program Design and Development
csce205: Business Applications Programming

Some general observations:
Functions, like any other object, need to be defined before they are
referenced/used. You aren't violating this, but you will be if you
fill in the rest of your while-loop. Ideally, you'll want a main
entry point for your program, so that it's clear in what order things
are being executed, and your functions are guaranteed to be defined
by the time flow-of-execution reaches the lines on which your functions are called.
It would make sense to define one function for each corresponding
command type (except for quit). You were on the right track here.
A couple questionable/redundant instances of f-strings (f"{code}" almost certainly doesn't do what you think it should.)
Prefer snake_case over camelCase when writing Python source code.
Your V command will terminate the loop (and the program)
prematurely. What if the user wants to print all courses, then a
description?
Here are my suggestions incarnate:
def get_courses():
courses = {}
with open("assignments/assignment-19/courses.txt", "r") as file:
for line in file:
data = line.split(":")
code = data[0].strip()
class_name = data[1].strip()
courses[code] = class_name
return courses
def display_courses(courses):
for key, value in courses.items():
print(f"{key}: {value}")
def display_description(courses):
code = input("Enter course code: ").strip().lower()
if code in courses:
print(courses[code])
else:
print(f"Sorry, \"{code}\" is not in our system.")
def main():
courses = get_courses()
while True:
command = input("(V)iew, (L)ookup or (Q)uit: ").lower()
if command == "v":
display_courses(courses)
elif command == "l":
display_description(courses)
elif commany == "q":
print("Goodbye!")
break
else:
print("Invalid command.")
# 'main' ends here
main()

Writing multiple lines to file and then reading them with Python

I've just undertaken my first proper project with Python, a code snippet storing program.
To do this I need to first write, then read, multiple lines to a .txt file. I've done quite a bit of googling and found a few things about writing to the file (which didn't really work). What I have currently got working is a function that reads each line of a multiline input and writes it into a list before writing it into a file. I had thought that I would just be able to read that from the text file and add each line into a list then print each line separately using a while loop, which unfortunately didn't work.
After going and doing more research I decided to ask here. This is the code I have currently:
'''
Project created to store useful code snippets, prehaps one day it will evolve
into something goregous, but, for now it's just a simple archiver/library
'''
#!/usr/local/bin/python
import sys, os, curses
os.system("clear")
Menu ="""
#----------- Main Menu ---------#
# 1. Create or edit a snippet #
# 2. Read a snippet #
# 0. Quit #
#-------------------------------#
\n
"""
CreateMenu ="""
#-------------- Creation and deletion --------------#
# 1. Create a snippet #
# 2. Edit a snippet #
# 3. Delete a snippet (Will ask for validation) #
# 0. Go back #
#---------------------------------------------------#
\n
"""
ReadMenu="""
#------ Read a snippet ------#
# 1. Enter Snippet name #
# 2. List alphabetically #
# 3. Extra #
# 0. Go Back #
#----------------------------#
"""
def readFileLoop(usrChoice, directory):
count = 0
if usrChoice == 'y' or 'n':
if usrChoice == 'y':
f = open(directory, 'r')
text = f.read()
f.close()
length = len(text)
print text
print length
raw_input('Enter to continue')
readMenu()
f.close()
elif choice == 'n':
readMenu()
def raw_lines(prompt=''):
result = []
getmore = True
while getmore:
line = raw_input(prompt)
if len(line) > 0:
result.append(line)
else:
getmore = False
result = str(result)
result.replace('[','').replace(']','')
return result
def mainMenu():
os.system("clear")
print Menu
choice = ''
choice = raw_input('--: ')
createLoop = True
if choice == '1':
return creationMenu()
elif choice == '2':
readMenu()
elif choice == '0':
os.system("clear")
sys.exit(0)
def create():
os.system("clear")
name = raw_input("Enter the file name: ")
dire = ('shelf/'+name+'.txt')
if os.path.exists(dire):
while os.path.exists(dire):
os.system("clear")
print("This snippet already exists")
name = raw_input("Enter a different name: ")
dire = ('shelf/'+name+'.txt')
print("File created\n")
f = open(dire, "w")
print("---------Paste code below---------\n")
text = raw_lines()
raw_input('\nEnter to write to file')
f.writelines(text)
f.close()
raw_input('\nSnippet successfully filled, enter to continue')
else:
print("File created")
f = open(dire, "w")
print("---------Paste code below---------\n")
text = raw_lines()
print text
raw_input('\nEnter to write to file')
f.writelines(text)
f.close()
raw_input('\nSnippet successfully filled, enter to continue')
def readMenu():
os.system("clear")
name = ''
dire = ''
print ReadMenu
choice = raw_input('--:')
if choice == '1':
os.system("clear")
name = raw_input ('Enter Snippet name: ')
dire = ('shelf/'+name+'.txt')
if os.path.exists(dire):
choice = ''
choice = raw_input('The Snippet exists! Open? (y/n)')
'''if not choice == 'y' or 'n':
while (choice != 'y') or (choice != 'n'):
choice = raw_input('Enter \'y\' or \'n\' to continue: ')
if choice == 'y' or 'n':
break'''
readFileLoop(choice, dire)
else:
raw_input('No snippet with that name exists. Enter to continue: ') #add options to retry, create snippet or go back
readMenu()
elif choice == '0':
os.system("clear")
print Menu
def creationMenu(): ###### Menu to create, edit and delete a snippet ######
os.system("clear")
print CreateMenu
choice = raw_input('--: ')
if choice == '1': ### Create a snippet
os.system("clear")
print create()
print creationMenu()
elif choice == '2':
os.system("clear") ### Edit a snippet
print ("teh editon staton")
raw_input()
print creationMenu()
elif choice == '3':
os.system("clear") ### Delete a snippet
print ("Deletion staton")
raw_input()
print creationMenu()
elif choice == '0': ### Go Back
os.system("clear")
######## Main loop #######
running = True
print ('Welcome to the code library, please don\'t disturb other readers!\n\n')
while running:
mainMenu()
######## Main loop #######
Tl;Dr: Need to write and read multiline text files

The problem that I'm having is the way the multilines are being stored to the file, it's stored in list format e.g ['line1', 'line2', 'line3'] which is making it difficult to read as multilines because I can't get it to be read as a list, when I tried it added the whole stored string into one list item. I don't know if I'm writing to the file correctly.
OK, so the problem is with writing the file. You're reading it in correctly, it just doesn't have the data you want. And the problem is in your raw_lines function. First it assembles a list of lines in the result variable, which is good. Then it does this:
result = str(result)
result.replace('[','').replace(']','')
There are two small problems and one big one here.
First, replace:
Return[s] a copy of the string with all occurrences of substring old replaced by new.
Python strings are immutable. None of their methods change them in-place; all of them return a new string instead. You're not doing anything with that new string, so that line has no effect.
Second, if you want to join a sequence of strings into a string, you don't do that by calling str on the sequence and then trying to parse it. That's what the join method is for. For example, if your lines already end with newlines, you want ''.join(result). If not, you want something like '\n'.join(result) + '\n'. What you're doing has all kinds of problems—you forgot to remove the extra commas, you will remove any brackets (or commas, once you fix that) within the strings themselves, etc.
Finally, you shouldn't be doing this in the first place. You want to return something that can be passed to writelines, which:
Write[s] a sequence of strings to the file. The sequence can be any iterable object producing strings, typically a list of strings.
You have a list of strings, which is exactly what writelines wants. Don't try to join them up into one string. If you do, it will run, but it won't do the right thing (because a string is, itself, a sequence of 1-character strings).
So, if you just remove those two lines entirely, your code will almost work.
But there's one last problem: raw_input:
… reads a line from input, converts it to a string (stripping a trailing newline), and returns that.
But writelines:
… does not add line separators.
So, you'll end up with all of your lines concatenated together. You need the newlines, but raw_input throws them away. So, you have to add them back on. You can fix this with a simple one-line change:
result.append(line + '\n')

To read multiple lines from a file, it's easiest to use readlines(), which will return a list of all lines in the file. To read the file use:
with open(directory, 'r') as f:
lines = f.readlines()
And to write out your changes, use:
with open(directory, 'w') as f:
f.writelines(lines)

fileList = [line for line in open("file.txt")]
While the previously mention idiom will work for reading files, I like mine. Its short and to the point.

store each word from a text file into a list

So I'm trying to make a program that reads a file, and stores each word into a list of strings. I can add each line into a list of strings, (see the code below) but how do I add each individual word into a list of strings?
Also, since this is a Mad Libs program, I'll have some phrases that will look like, noun, or body part. How would I store body part into the list as one string, since it is technically two separate words?
Code for reference:
def main():
file_list = []
while True: #while loop that runs until the user puts in a file name...
#or types in quit
#asks the user for a file name, or gives them an option to quit
file_name = raw_input("Enter in the name of the file, or type in quit to quit: ")
if file_name == "quit":
sys.exit(0) #quits the program
else:
try: #attempts to open the file
fin = open(file_name)
break
except: #prints out if file name doesn't exist
print "No, no, file no here."
for eachLine in fin: #strips out the new lines from the file
file_list.append(eachLine.strip())
print file_list
if __name__ == '__main__':
main()

file_list.extend(eachLine.split())

Saving/Loading lists in Python

I am new to python (and programming in general) and am making a database/register for a typical class. I wanted the user to be able to add and remove pupils from the database, I used lists primarily for this but have hit a stump.
Whenever I restart the program the list the user has modified returns back to the defualt list I specified in the code. I looked around the internet and tried to save the list onto a seperate txt file. However the txt file also goes back to the defualt every time I restart the program. I would like you to please give me a way to save the changes made to the list and keep them that way. Here is the code (it's not very good):
def menu():
print "*****************CLASS REGISTER*****************"
print "Press 1 See The List Of Pupils"
print "Press 2 To Add New Pupils"
print "Press 3 To Remove Pupils"
print "Press 0 To Quit \n"
filename = open('pupil.txt','r')
pupil = ["James Steele", "Blain Krontick", "Leeroy Jenkins", "Tanvir Choudrey"]
def see_list(x):
print x
def add_pupil(x):
print "You have chosen to add a new pupil.\n"
option = raw_input("Please type the childs name.")
x.append(option)
filename = open('pupil.txt','w')
filename.write('\n'.join(pupil))
filename.close()
print option, "has been added to the system."
return x
def delete_pupil(x):
print "You have chosen to remove a pupil.\n"
option = raw_input("Please type the childs name.")
if option in x:
x.remove(option)
filename = open('pupil.txt','w')
filename.write('\n'.join(pupil))
filename.close()
print option, "has been removed from the system."
else:
print "That person is not in the system."
return x
one = 1
while one != 0:
menu()
option = input()
if option == 1:
see_list(pupil)
elif option == 2:
add_pupil(pupil)
elif option == 3:
delete_pupil(pupil)
elif option == 0:
break
else:
print "That is not a valible choice."
filename = open('pupil.txt','w')
filename.write('\n'.join(pupil))
filename.close()
if option == 0:
quit

Well, you just open the pupil.txt file but never read back its contents. You need something like this:
filename = open('pupil.txt', 'r')
contents = filename.read()
filename.close()
pupil = [name for name in contents.split('\n') if name]
Also, you will need to handle the case when the pupil.txt file does not exist; this can be done with a try..except block around the IO calls.
Finally, as one of the comments has mentioned above, have a look at the pickle module, which lets you store a Python object in a file in Python's internal format (which is not really readable, but saves you a lot of hassle).

Not related to your question directly, but this:
one = 1
while one != 0:
...
is silly. All you need is:
while True:
...

This is what a database is for. Use sqlite - a simple file-based database the libraries for which come bundled with python.