fix unused imports and redundant f-strings

# accordance with the laws of the Federal Republic of Germany excluding its conflict of law rules and

# the United Nations Convention on Contracts on the International Sales of Goods.

import csv

import re

import sys

newsletterFilename = ""

# accordance with the laws of the Federal Republic of Germany excluding its conflict of law rules and

# the United Nations Convention on Contracts on the International Sales of Goods.

import csv

import re

import sys

newsletterFilename = ""

import argparse

import concurrent.futures

import os

import pathlib

import re

import shutil

import subprocess

        if num_files_diff > 0:

            print(f"{num_files_diff} files differ/don't exist")

        else:

            print(f"All files are bitexact")

            print("All files are bitexact")

def compare_files(f, fol1, fol2, outputs_dict, tool):

#!/usr/bin/env python3

import argparse

import csv

import os

import struct

import sys

import matplotlib.pyplot as plt

import numpy as np

import os

import shutil

import numpy as np

from pyaudio3dtools import audioarray, audiofile

from pyaudio3dtools import audiofile

def main():