FileNotFoundError while importing class that reads csv

I'm working on a project that has this structure:

1. src/
2. data/ with csv and txt files
3. mod/ with python classes
4. main.py

classes in mod/ use read csv to get data in form of

class Currency:
    def __init__(self, country_name: str):
        self.country = country_name
        self.code = self.get_code()

    def get_code(self) -> str:
        with open("../data/iso-4217.csv") as file:
            country_list = list(csv.reader(file))
            for row in country_list[1:]:
                if row[0] == self.country:
                    code = row[1]
        return code

And it works just fine. But whenever I import the class itself to main.py, I get
FileNotFoundError: [Errno 2] No such file or directory: '../data/iso-4217.csv'

Is there a way to make correct import using relative pathing?

Using absolute pathing seems to fix the issue, but i'd rather use relative

Try replacing "../data/iso-4217.csv" by "data/iso-4217.csv" as you are working in the main.py directory's.

Yet another option is to send the relative path in a variable to make the class usable from anywhere.