split all text files from folder

EXPLANATION:

ROMANIAN: https://neculaifantanaru.com/python-split-all-text-files-from-folder.html
ENGLISH:  https://neculaifantanaru.com/en/python-split-all-text-files-from-folder.html
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import sys
import os
import nltk
from nltk import tokenize

def read_text_from_file(file_path):
    """
    Aceasta functie returneaza continutul unui fisier.
    file_path: calea catre fisierul din care vrei sa citesti
    """
    with open(file_path, encoding='utf8') as f:
        text = f.read()
        return text


def write_to_file(text, file_path):
    """
    Aceasta functie scrie un text intr-un fisier.
    text: textul pe care vrei sa il scrii
    file_path: calea catre fisierul in care vrei sa scrii
    """
    with open(file_path, 'wb') as f:
        f.write(text.encode('utf8', 'ignore'))

def imparte_fisiere(cale_fisier_txt, cale_folder_fisiere_impartite):
    text = read_text_from_file(cale_fisier_txt)
    propozitii = tokenize.sent_tokenize(text)
    nume_fisier = os.path.basename(cale_fisier_txt).split('.')[0] # "30.txt" => split('.') => ["30", "txt"] => [0] => "30"
    chunk = ''
    chunk_size = 5000 # 5KB
    chunk_number = 1
    for propozitie in propozitii:
        if len(chunk.encode('utf-8')) < chunk_size:
            chunk = chunk + " " + propozitie
        else:
            # scriere fisier
            cale_fisier_rezultat = cale_folder_fisiere_impartite + '\\' + nume_fisier + "_" + str(chunk_number) + ".txt" # => "30_1.txt"
            write_to_file(chunk, cale_fisier_rezultat)
            # print("Fisierul {} a fost scris cu succes.".format(nume_fisier + "_" + str(chunk_number) + ".txt"))
            chunk = propozitie
            chunk_number += 1

def creare_fisiere(cale_folder_txt, cale_folder_fisiere_impartite):
    """
    Functia itereaza printr-un folder care contine fisiere txt si imparte in 5KB fiecare fisier
    """
    count = 0
    for f in os.listdir(cale_folder_txt):
            if f.endswith('txt'):
                cale_fisier_txt = cale_folder_txt + "\\" + f
                imparte_fisiere(cale_fisier_txt, cale_folder_fisiere_impartite)
                count += 1
            else:
                continue
    print("Numarul de fisiere modificate: ", count)

# cale_folder_txt/30.txt => cale_folder_fisiere_impartite/30_part1.txt
#                        => cale_folder_fisiere_impartite/30_part2.txt

def main():
    creare_fisiere("c:\\Folder1", "c:\\Folder1\\fisiere_impartite")

if __name__ == '__main__':
    main()