Правильным ответом является [1, 2]
Происходит так из-за того, что дефолтные параметры хранятся в неизменном кортеже в атрибуте функции defaults, который создается один раз в момент определения функции.
А для того, чтобы добиться правильного поведения функции, следует воспользоваться ключевым словом None при определении аргументов по-умолчанию.
BY Python Academy
The Singapore stock market has alternated between positive and negative finishes through the last five trading days since the end of the two-day winning streak in which it had added more than a dozen points or 0.4 percent. The Straits Times Index now sits just above the 3,060-point plateau and it's likely to see a narrow trading range on Monday.
The messaging service and social-media platform owes creditors roughly $700 million by the end of April, according to people briefed on the company’s plans and loan documents viewed by The Wall Street Journal. At the same time, Telegram Group Inc. must cover rising equipment and bandwidth expenses because of its rapid growth, despite going years without attempting to generate revenue.
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