René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"`AssertionError` when running `profile` on code containing generator expression","articleBody":"# Bug report\n\n### Bug description:\n\nBisected to  411b1692811b2ecac59cb0df0f920861c7cf179a.\n\nMinimal repro (save it to file and run as `python -m profile script.py`):\n```python\nnext(i for i in range(10))\n```\nOutput:\n```\nException ignored in: \u003cgenerator object \u003cgenexpr\u003e at 0x7f48fac29010\u003e\nTraceback (most recent call last):\n  File \"/home/radislav/projects/cpython/Lib/profile.py\", line 209, in trace_dispatch_i\n    if self.dispatch[event](self, frame, t):\n       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n  File \"/home/radislav/projects/cpython/Lib/profile.py\", line 293, in trace_dispatch_return\n    assert frame is self.cur[-2].f_back, (\"Bad return\", self.cur[-3])\n           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^\nAssertionError: ('Bad return', ('script.py', 1, '\u003cmodule\u003e'))\n         5 function calls in 0.114 seconds\n\n   Ordered by: standard name\n\n   ncalls  tottime  percall  cumtime  percall filename:lineno(function)\n        1    0.000    0.000    0.114    0.114 :0(exec)\n        1    0.000    0.000    0.000    0.000 :0(next)\n        1    0.000    0.000    0.114    0.114 profile:0(\u003ccode object \u003cmodule\u003e at 0x7f48faba08c0, file \"script.py\", line 1\u003e)\n        0    0.000             0.000          profile:0(profiler)\n        1    0.000    0.000    0.000    0.000 script.py:1(\u003cgenexpr\u003e)\n        1    0.114    0.114    0.114    0.114 script.py:1(\u003cmodule\u003e)\n\n```\n\n### CPython versions tested on:\n\n3.12, CPython main branch\n\n### Operating systems tested on:\n\nLinux\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-110524\n* gh-110541\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/chgnrdv","@type":"Person","name":"chgnrdv"},"datePublished":"2023-10-08T00:43:47.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/110514/cpython/issues/110514"}