#python #software_design_pattern Ресурсы https://ru.wikipedia.org/wiki/%D0%A8%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD_%D0%BF%D1%80%D0%BE%D0%B5%D0%BA%D1%82%D0%B8%D1%80%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D1%8F https://proglib.io/p/3-luchshih-patterna-proektirovaniya-v-python-singlton-dekorator-i-iterator-2022-02-03 Заметки Одиночка (singleton )