[Python] How can I make joblib works with executable files (.exe)

I developed a program in python to organize data that comes from xlsx and csv and convert it to csv. To accelerate the program, I am using joblib to do parallel processing. The program is working fine when I run on the console, but it doesn't work when I generate an executable using pyinstaller. When I run it, nothing appears on the terminal.

The main code:

import Conv
from os import getcwd
from time import time
from Df_2_csv import createFolder
from joblib import Parallel, delayed

#Getting the initial time
t0=time()

path=(getcwd()).replace("\\","/")

#Creating a folder "Csv" if it doesn't exist
newPath=createFolder(path)

#Getting all files of each type
all_xlsx= Conv.getAllOfType(path,".xlsx")
all_csv= Conv.getAllOfType(path,".csv")

#Getting the lenght of the lists
len_all=Conv.len_all(all_xlsx,all_csv)

#Run along xlsx files
Result=Parallel(n_jobs=-1)(delayed(Conv.conv_xlsx)(
fileName,path,newPath,t0,index,len_all) for index,fileName in enumerate(all_xlsx))

#Run along csv files
Result=Parallel(n_jobs=-1)(delayed(Conv.conv_csv)(
fileName,path,newPath,t0,index,len_all) for index,fileName in enumerate(all_csv,start=len(all_xlsx)))


I generated the executable using:

pyinstaller --onefile Main.py

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