Get string from entry and use it in another script

[amdi40]

Hello, I am trying to insert a file path in an entry in my GUI. I then want to save this entry, as I need the path in another script that I have made. I am however unsure how to do this. I have tried a couple of things but get errors like that the entry is unhashable type, and I am not sure how to fix this. I have read that I should make it to a tuple, but could not make this work either. The part which involves the entry and where I should get the other script to run looks like this :)

#insert filname in entry
fil_udfald_regn = StringVar()
fil_udfald = ttk.Entry(tab1, textvariable=fil_udfald_regn).place(x=145, y=81)
# Definition for udfaldknap
def files_udfald():
    window.filename = filedialog.askopenfilename(initialdir='\\:C', title="Vælg fil",
                                                 filetypes=[("Text files", "*.txt"), ("All files", "*.*")])
    fil_udfald_regn.set(window.filename)
    print(fil_udfald_regn)
    print(fil_udfald)
# Trying to save the entry and then set the script to be equal to entry
def entry_sti(): #todo
    test = gg(fil_udfald_regn.get())
    return fil_udfald_regn.get()

# Button that runs the two definitions 
vlg_udfald = ttk.Button(tab1, text="Vælg udfaldsfil",
                        padding=(2, 2, 2, 2),
                        command=lambda :[files_udfald(),entry_sti()]).place(x=25, y=78)

And the script I am trying to run, when I obtain a file path looks like this

import os
from pathlib import Path
from datetime import datetime
import pandas as pd
from io import StringIO

def gg(name):
    d = pd.read_csv({name}, encoding='ISO-8859-1')
    d.to_csv('Udfald.csv', index=False)
    file1 = open('Udfald.csv', 'r')
    Lines = file1.readlines()

    def convert_udfald():
        # Set start directory same as script
        os.chdir(os.path.abspath(os.path.dirname(__file__)))

        infile = Path('.') / 'Udfald.csv'
        outfile = Path('.') / 'Udfald1.csv'

        with infile.open() as fp, outfile.open('w') as fout:
            for line in fp:
                line = line.strip().split()
                header = 'd'
                # extract header
                if line[0] == 'ååååmmdd':
                    data = f"{header}\n"
                    fout.write(data)
                    Day=int(line[8])
                    #minute= int(line[9])
                    dage = Day
                    Timer= line[9]
                    data = f"{dage}:{Timer}\n"
                    fout.write(data)
            # else:
            # print('false')


    if __name__ == '__main__':
        convert_udfald()

    d = pd.read_csv("Udfald1.csv")
    #print(d)
    t=d.iloc[0,0]
    d=t.strip().split(':')
    dage=float(int(d[0]))
    timer=float(int(d[1]))
    minutter=float(int(d[2]))

    year=(dage+(timer/24)+(minutter/24/60))/365

    year=round(year,ndigits=2)
    print(year)
    df=str(year)
    print(year)

    df=StringIO(df)
    df=pd.read_csv(df)
    df.to_csv('udfald1.csv', index=False)
    df=pd.read_csv('udfald1.csv', header=None)
    print(df.iloc[:1])

The error message i get right now is "ValueError: Invalid file path or buffer object type: <class 'set'>"

The purpose of this is that i want to make my GUI file structured and call script instead of having it all in one fill. This particular example should obtain the path to a txt.file which contains some data, that i want to convert and use later in the GUI
Hope my question makes sense :)
Looking forward to hearing from you!