I am trying to change the high score file of a game called highscore.txt every time when someone breaks it.

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this is the question:

The game() function in a program lets a user play a game and returns the score as an integer. You need to read a file"hiscore.txt" which is either blank or contains the previous high score. You need to write a program to update the high score whenever someone breaks the high score.

This is the code i have typed:

Python


file=open("hiscore.txt","r")
c=file.read()
score=int(c)
file.close()

new_score=int(input("Enter ur new score"))
if score<new_score:
    file=open("hiscore","w")
    file.write(c)

The error is given below:

Traceback (most recent call last):
File "d:\python\blah.py", line 3, in <module>
score=int(c)
ValueError: invalid literal for int() with base 10: ''

What I have tried:

This is the code i have typed:

<pre lang="Python">
file=open("hiscore.txt","r")
c=file.read()
score=int(c)
file.close()

new_score=int(input("Enter ur new score"))
if score<new_score:
    file=open("hiscore","w")
    file.write(c)

Posted 17-Jul-22 2:27am

Akshat Parmar

Updated 17-Jul-22 3:12am

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OriginalGriff · Answer 1 · 2022-07-17T03:12:00

c does not contain an integer - which means that the file doesn't either, it is empty, or it has additional information in it.

Start by looking at the file and what it contains - Notepad is a good start here.
Then if that looks right, use the debugger to find out exactly what c contains.

What I'd suggest is that you write your file with something like "Hiscore=" and then the number. You can then look for the "=" when you read it back and only process the number data after it if you find it.

Just makes the file a bit more "user friendly" and it's easier for your code to spot when the high score isn't actually there.