New submission from Eugene Toder <elto...@gmail.com>:
If a module has a loader, linecache calls its get_source() passing __name__ as the argument. This works most of the time, except that the __main__ module has it set to "__main__", which is commonly not the real name of the module. Luckily, we now have __spec__ which has the real name, so we can just use it. Attached zip file reproduces the problem: $ python t.zip Traceback (most recent call last): ... File "t.zip/t.py", line 11, in <module> File "t.zip/t.py", line 8, in f File "t.zip/t.py", line 8, in f File "t.zip/t.py", line 8, in f [Previous line repeated 2 more times] File "t.zip/t.py", line 7, in f ValueError Note that entries from t.py don't have source code lines. ---------- components: Library (Lib) files: t.zip messages: 379408 nosy: eltoder priority: normal severity: normal status: open title: linecache cannot get source for the __main__ module with a custom loader type: behavior versions: Python 3.10 Added file: https://bugs.python.org/file49536/t.zip _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue42125> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
