René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"is_online() fails with raise NotImplementedError()","articleBody":"I have:\r\n- [X ] searched open and closed issues for duplicates\r\n\r\n### Bug description\r\nIt looks like the function is missing in the File \"driver\":\r\n\r\n\u003e File \"/usr/lib/python3.11/site-packages/escpos/escpos.py\", line 177, in _read\r\n\u003e     raise NotImplementedError()\r\n\u003e NotImplementedError\r\n\r\n\r\n### Steps to reproduce\r\n```\r\nfrom escpos.escpos import EscposIO\r\nfrom escpos import printer\r\n\r\nwith EscposIO(printer.File(\"\u003cPath\u003e\", profile=\"TM-U220B\")) as x:\r\n     while not x.printer.is_online():\r\n     pass\r\n```\r\n\r\n### Device info\r\n **Printer:** Epson Model TM-U220B\r\n\r\n **python-escpos version:** 3.1\r\n\r\n **python version:** 3.11.7\r\n \r\n **operating system:** Fedora-38\r\n","author":{"url":"https://github.com/tuxmaster5000","@type":"Person","name":"tuxmaster5000"},"datePublished":"2024-01-14T11:30:31.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":5},"url":"https://github.com/622/python-escpos/issues/622"}