модуль

from translate import Translator
def translate_serbian_to_english(text):
    translator = Translator(to_lang="en")
    translation = translator.translate(text)
    return translation
text_to_translate = "rotkvica"
translated_text = translate_serbian_to_english(text_to_translate)
print(translated_text)

Метод 2. Использование библиотеки googletrans

from googletrans import Translator
def translate_serbian_to_english(text):
    translator = Translator(service_urls=["translate.google.com"])
    translation = translator.translate(text, dest="en")
    return translation.text
text_to_translate = "rotkvica"
translated_text = translate_serbian_to_english(text_to_translate)
print(translated_text)

библиотека

from mtranslate import translate
def translate_serbian_to_english(text):
    translation = translate(text, "en", "auto")
    return translation
text_to_translate = "rotkvica"
translated_text = translate_serbian_to_english(text_to_translate)
print(translated_text)