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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":" locale.nl_langinfo(locale.ERA) does not work for past eras","articleBody":"# Bug report\r\n\r\nAccording to the Posix specification (https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/V1_chap07.html#tag_07_03_05_02), `nl_langinfo(ERA)` should return a string containing semicolon separated era description segments. But in Glibc it uses NUL instead of a semicolon as a separator. As result, `locale.nl_langinfo(locale.ERA)` in Python only returns the first segment, corresponding to the last (current) era. For example, in Japanese locale the result cannot be used for data before year 2020:\r\n\r\n```pycon\r\n\u003e\u003e\u003e import locale\r\n\u003e\u003e\u003e locale.setlocale(locale.LC_ALL, 'ja_JP')\r\n'ja_JP'\r\n\u003e\u003e\u003e locale.nl_langinfo(locale.ERA)\r\n'+:2:2020/01/01:+*:令和:%EC%Ey年'\r\n```\r\n\r\nThis issue is similar to #124969, but at least the result can be used for the current date.\r\n\r\ncc @methane, @kulikjak.\r\n\r\n\u003c!-- gh-linked-prs --\u003e\r\n### Linked PRs\r\n* gh-126730\r\n* gh-127097\n* gh-127098\n* gh-127327\n* gh-127645\n* gh-127646\n\u003c!-- /gh-linked-prs --\u003e\r\n","author":{"url":"https://github.com/serhiy-storchaka","@type":"Person","name":"serhiy-storchaka"},"datePublished":"2024-11-12T10:28:41.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/126727/cpython/issues/126727"}