Issue Importing File in Python

Question

I recently got the marks for a program I wrote for an assignment and I almost failed. The assignment was to create an address book that a user could add to and amend, with some other features.

The issue was with the import of my .txt file as, when the marker tried to run it, it couldn't locate the file and therefore couldn't run. It ran with no issue for me, which is why I didn't spot it, and so I assume that there is an issue with finding the directory when run on another PC.

This is the code that failed me:

import csv
filepath = 'data.txt'
with open(filepath, newline='') as f:
    reader = csv.reader(f)
    data = list(reader)

I can see some smaller issues with this, e.g. I left 'newline' from some previous code that was changed, but I don't know what I should have done differently. I also don't think that the issue is with importing the .txt file as a CSV as this worked fine when writing and saving to the file on my PC.

Any help with this would be really appreciated.

Edit

I forgot to add that my uni gave a framework for importing the file (which I didn't use) which was this:

import os
save = False
last = -1
data = []

Not sure if this is helpful but thought it would be best to include it

question from:https://stackoverflow.com/questions/65847678/issue-importing-file-in-python