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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Lwhile interpreter exceeds RecursionLimit","articleBody":"Might not be that big of an issue but running `InterpLwhile().interp(prog)` on a program that has nested loops seems to cause a RecursionLimit exception rather quickly.\r\n\r\n```\r\nclass InterpLwhile(InterpLif):\r\n\r\n  def interp_stmt(self, s, env, cont):\r\n    match s:\r\n      case While(test, body, []):\r\n        if self.interp_exp(test, env):\r\n            self.interp_stmts(body + [s] + cont, env)\r\n        else:\r\n          return self.interp_stmts(cont, env)\r\n      case _:\r\n        return super().interp_stmt(s, env, cont)\r\n\r\nif __name__ == '__main__':\r\n\r\n  prog=\"\"\"\r\nx = 50\r\nwhile x \u003e 0:\r\n    y = 2\r\n    while y != 0:\r\n        y = y - 1\r\n    x = x - 1\r\nprint(x)\r\n\"\"\"\r\n\r\n  InterpLwhile().interp(parse(prog))\r\n```\r\n\r\nThe above example does not work without using `sys.setrecursionlimit(...)`. ","author":{"url":"https://github.com/waynee95","@type":"Person","name":"waynee95"},"datePublished":"2023-07-14T17:47:58.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/22/python-student-support-code/issues/22"}