René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"REPL errors out on numpy.array initialization expression","articleBody":"As the user starts typing a numpy.array initialization expression, the REPL produces a TypeError and exits.\r\nConsider the following example, where the error is produced when the user tries to type `np.array([1, 2`:\r\n```\r\n(env) /Users/georgepf\u003ebpython\r\nbpython version 0.20.1 on top of Python 3.9.1 /Users/georgepf/env/bin/python3\r\n\u003e\u003e\u003e  import numpy as np\r\n\u003e\u003e\u003e  np.array([1, \r\nTraceback (most recent call last):\r\n  File \"/Users/georgepf/env/bin/bpython\", line 8, in \u003cmodule\u003e\r\n    sys.exit(main())\r\n  File \"/Users/georgepf/env/lib/python3.9/site-packages/bpython/curtsies.py\", line 221, in main\r\n    exit_value = repl.mainloop(True, paste)\r\n  File \"/Users/georgepf/env/lib/python3.9/site-packages/bpython/curtsies.py\", line 133, in mainloop\r\n    self.process_event_and_paint(e)\r\n  File \"/Users/georgepf/env/lib/python3.9/site-packages/bpython/curtsies.py\", line 97, in process_event_and_paint\r\n    self.process_event(e)\r\n  File \"/Users/georgepf/env/lib/python3.9/site-packages/bpython/curtsiesfrontend/repl.py\", line 658, in process_event\r\n    return self.process_key_event(e)\r\n  File \"/Users/georgepf/env/lib/python3.9/site-packages/bpython/curtsiesfrontend/repl.py\", line 825, in process_key_event\r\n    self.add_normal_character(e)\r\n  File \"/Users/georgepf/env/lib/python3.9/site-packages/bpython/curtsiesfrontend/repl.py\", line 1111, in add_normal_character\r\n    self.cursor_offset += 1\r\n  File \"/Users/georgepf/env/lib/python3.9/site-packages/bpython/curtsiesfrontend/repl.py\", line 1821, in _set_cursor_offset\r\n    self.update_completion()\r\n  File \"/Users/georgepf/env/lib/python3.9/site-packages/bpython/curtsiesfrontend/repl.py\", line 1143, in update_completion\r\n    self.list_win_visible = self.complete(tab)\r\n  File \"/Users/georgepf/env/lib/python3.9/site-packages/bpython/repl.py\", line 770, in complete\r\n    self.matches_iter.update(\r\n  File \"/Users/georgepf/env/lib/python3.9/site-packages/bpython/repl.py\", line 356, in update\r\n    self.start, self.end, self.current_word = self.completer.locate(\r\nTypeError: cannot unpack non-iterable NoneType object\r\n(env) /Users/georgepf\u003e\r\n```\r\nThis was on an M1 MacBook Pro running macOS Big Sur 11.1, python 3.9.1 and bpython are running natively on Apple silicon, numpy is 1.21.0 compiled locally for M1.","author":{"url":"https://github.com/georgipeev","@type":"Person","name":"georgipeev"},"datePublished":"2021-01-21T19:11:36.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":9},"url":"https://github.com/879/bpython/issues/879"}