Copy Html Links in another frame

Explanation:
ROMANIAN: https://neculaifantanaru.com/python-parsing-muta-linkurile-html-in-alt-cadru.html
ENGLISH: https://neculaifantanaru.com/en/python-parsing-move-html-links-in-another-frame.html
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import re
import os


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, 'r') 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, 'w') as f:
        f.write(text)

def check_link(file_path):
    text = read_text_from_file(file_path)
    # transformam textul din fisier intr-un string
    text = str(text)
    pattern = re.compile('<link rel="canonical" href="(.*?)" />')
    canonical_link = re.findall(pattern, text)
    if len(canonical_link) != 0:
        file_name = canonical_link[0].split('/')[-1]
        # -1 se foloseste cand vrei sa extragi elementul de pe ultima pozitie dintr-o lista | numerotarea incepe de la 0
        flags_pattern = re.compile('<!-- FLAGS_1 -->[\s\S]*?<!-- FLAGS -->[\s\S]*?')
        text_flags = str(re.findall(flags_pattern, text)[0])
        # print("before: ", text_flags)
        languages = ['en', 'ar', 'zh', 'hi', 'de', 'ru']
        text_flags_new = text_flags
        for language in languages:
            template = re.compile('<a href=\"https://neculaifantanaru.com/{}/(.*?)\">'.format(language))
            links = re.findall(template, text_flags)
            for link in links:
                if link != file_name:
                    text_flags_new = text_flags_new.replace(link, file_name)
        # print("after: ", text_flags_new)
        text = text.replace(text_flags, text_flags_new)
        write_to_file(text, file_path)
    else:
        print("Found a problem with the file: ", file_path)


def check_links_for_all_files(directory_name):
    for file in os.listdir(directory_name):
        filename = str(file)
        print(filename)
        # verificam daca fisierul se termina cu extensia html sau php
        if filename.endswith(".html"): #or filename.endswith(".php"):
            file_path = os.path.join(directory_name, filename)
            # pentru fiecare fisier gasit, stergem spatiile in plus
            check_link(file_path)
        else:
            continue

if __name__ == '__main__':
    check_links_for_all_files("e:\\Carte\\BB")