Beginner's question, but frustrating nonetheless

[peppermints]

I am trying to modify this trivia program to read scores from a separate text file and then add the scores to a running total if the user answers correctly. Here is my code so far:

# Trivia Challenge
# Trivia game that reads a plain text file

import os
    
def open_file():
    print "Which trivia episode would you like? It must have a .trv extension:"
    print os.listdir(os.getcwd())
    print "Type in the correct file name: "
    file_name = raw_input()
    """Open a file."""
    try:
        the_file = open(file_name, 'r')
    except(IOError), e:
        print "Unable to open the file", file_name, "Ending program.\n", e
        raw_input("\n\nPress the enter key to exit.")
        sys.exit()
    else:
        return the_file

def next_line(the_file):
    """Return next line from the trivia file, formatted."""
    line = the_file.readline()
    line = line.replace("/", "\n")
    return line

def next_block(the_file):
    """Return the next block of data from the trivia file."""
    category = next_line(the_file)
    
    question = next_line(the_file)
    
    answers = []
    for i in range(4):
        answers.append(next_line(the_file))
        
    correct = next_line(the_file)
    if correct:
        correct = correct[0]
                
    explanation = next_line(the_file)
    
    return category, question, answers, correct, explanation

def welcome(title):
    """Welcome the player and get his/her name."""
    print "\t\tWelcome to Trivia Challenge!\n"
    print "\t\t", title, "\n"
 
def main():
    trivia_file = open_file()
    title = next_line(trivia_file)
    welcome(title)
    score = 0

    # get first block
    category, question, answers, correct, explanation = next_block(trivia_file)
    while category:
        # ask a question
        print category
        print question
        for i in range(4):
            print "\t", i + 1, "-", answers[i]

        # get answer
        answer = raw_input("What's your answer?: ")

        # check answer
        if answer == correct:
            print "\nRight!"
            a = trivia_file.readline()
            a = a(int)
            score = score + a
            
        else:
            print "\nWrong.",
        print explanation
        print "Score:", score, "\n\n"

        # get next block
        category, question, answers, correct, explanation = next_block(trivia_file)

    trivia_file.close()

    print "That was the last question!"
    print "You're final score is:", score
 
main()  
raw_input("\n\nPress the enter key to exit.")

And here is my text file:

An Episode You Can't Refuse
On the Run With a Mammal
Let's say you turn state's evidence and need to "get on the lamb." If you wait /too long, what will happen?
You'll end up on the sheep
You'll end up on the cow
You'll end up on the goat
You'll end up on the emu
1
5
A lamb is just a young sheep
The Godfather Will Get Down With You Now
Let's say you have an audience with the Godfather of Soul. How would it be /smart to address him?
Mr. Richard
Mr. Domino
Mr. Brown
Mr. Checker
3
10
James Brown is the Godfather of Soul.
That's Gonna Cost Ya
If you paid the Mob protection money in rupees, what business would you most /likely be insuring?
Your tulip farm in Holland
Your curry powder factory in India
Your vodka distillery in Russian
Your army knife warehouse in Switzerland
2
15
The Rupee is the standard monetary unit of India.
Keeping It the Family
If your mother's father's sister's son was in "The Family," how are you related /to the mob?
By your first cousin once removed
By your first cousin twice removed
By your second cousin once removed
By your second cousin twice removed
1
20
Your mother's father's sister is her aunt -- and her son is your /mother's first cousin. Since you and your mother are exactly one generation /apart, her first cousin is your first cousin once removed.
A Maid Man
If you were to literally launder your money, but didn't want the green in your /bills to run, what temperature should you use?
Hot
Warm
Tepid
Cold
4
25
According to my detergent bottle, cold is best for colors that might run.

The score amount is listed after the correct answer and before an explanation of the answer.

The problem I'm running to is this part of my code:

# check answer
        if answer == correct:
            print "\nRight!"
            a = trivia_file.readline()
            a = a(int)
            score = score + a

I keep getting an error telling me that TypeError: 'str' object is not callable. Which to me doesn't make sense because I thought that a was being converted to an integer before being added to score.

Any help would be much appreciated.

Thanks!

[peppermints]

Okay, I've taken a new approach.

# Trivia Challenge
# Trivia game that reads a plain text file

import os
    
def open_file():
    print "Which trivia episode would you like? It must have a .trv extension:"
    print os.listdir(os.getcwd())
    print "Type in the correct file name: "
    file_name = raw_input()
    """Open a file."""
    try:
        the_file = open(file_name, 'r')
    except(IOError), e:
        print "Unable to open the file", file_name, "Ending program.\n", e
        raw_input("\n\nPress the enter key to exit.")
        sys.exit()
    else:
        return the_file

def next_line(the_file):
    """Return next line from the trivia file, formatted."""
    line = the_file.readline()
    line = line.replace("/", "\n")
    return line

def next_block(the_file):
    """Return the next block of data from the trivia file."""
    category = next_line(the_file)
    
    question = next_line(the_file)
    
    answers = []
    for i in range(4):
        answers.append(next_line(the_file))
        
    correct = next_line(the_file)
    if correct:
        correct = correct[0]

    scores = next_line(the_file)
                
    explanation = next_line(the_file)
    
    return category, question, answers, correct, scores, explanation

def welcome(title):
    """Welcome the player and get his/her name."""
    print "\t\tWelcome to Trivia Challenge!\n"
    print "\t\t", title, "\n"
 
def main():
    trivia_file = open_file()
    title = next_line(trivia_file)
    welcome(title)
    score = 0

    # get first block
    category, question, answers, correct, scores, explanation = next_block(trivia_file)
    while category:
        # ask a question
        print category
        print question
        for i in range(4):
            print "\t", i + 1, "-", answers[i]

        # get answer
        answer = raw_input("What's your answer?: ")

        # check answer
        if answer == correct:
            print "\nRight!"
            score = score + scores(int)
            
        else:
            print "\nWrong.",
        print explanation
        print "Score:", score, "\n\n"

        # get next block
        category, question, answers, correct, scores, explanation = next_block(trivia_file)

    trivia_file.close()

    print "That was the last question!"
    print "You're final score is:", score
 
main()  
raw_input("\n\nPress the enter key to exit.")

I've set the score to be read in the 'next_block' function. I feel like that makes more sense than doing readline etc.

However, I still get the same TypeError: 'str' object is not callable
error.

Any ideas?

[jice]

score = score + scores(int)

don't you mean

score = score + int(scores)

[peppermints]

Wow, that was the problem. I feel so silly now! Thanks a bunch! It's always the little things..

Now, however I have to make sure that the directory you open the program in has a '.trv' file in it. I started to get it to work, but only if the user is aware that it needs to be a '.trv' and enters a '.trv' file.

For example:

def open_file():
	if '.trv' in os.listdir(os.getcwd()):
    	print "Which trivia episode would you like? It must have a .trv extension:"
    	print os.listdir(os.getcwd())
    	print "Type in the correct file name: "
    	file_name = raw_input()
    	"""Open a file."""
    	try:
        	the_file = open(file_name, 'r')
    	except(IOError), e:
        	print "Unable to open the file", file_name, "Ending program.\n", e
        	raw_input("\n\nPress the enter key to exit.")
        	sys.exit()
    	else:
        	return the_file

It doesn't say evaluate that there are any .trv files in the current directory. Any ideas why that is?

[woooee]

Your indentations are not correct, and you want to do something else if no files are found. And this is the most that I am willing to do to clean up the screwy tabs and spaces in the code so I hope it is legible.

def open_file():
    if '.trv' in os.listdir(os.getcwd()):
    	print "Which trivia episode would you like? It must have a .trv extension:"
    	print os.listdir(os.getcwd())
    	print "Type in the correct file name: "
    	file_name = raw_input()
    	"""Open a file."""
    	try:
                      the_file = open(file_name, 'r')
    	except(IOError), e:
                       print "Unable to open the file", file_name, "Ending program.\n", e
                       raw_input("\n\nPress the enter key to exit.")
                       sys.exit()
    	else:
        	    return the_file
    else:
        print "There are no files in this directory"
        return