New submission from Ivan Pozdeev <ivan_pozd...@mail.ru>: pdb.Pdb.checkline() throws AttributeError at pdb.py:470 if invoked before starting a debugging session because self.curframe doesn't exist at that time.
This breaks IPython's %run magic command (v0.10, Magic.py:1663). The command sets a breakpoint before running the script and scans the file before that to make sure the breakpoint is set on an executable line. This is a reasonable thing to do: setting a breakpoint and making sure it is set correctly shouldn't require a running debug session. So i conclude it is pdb, not IPython, that shall be fixed. The patch attached gives linecache.getline() None as module_globals if self.curframe doesn't exist. The rationale is: even if the script does use PEP302 import stuff, we can't know or use that before running it. So it's ok if we stay limited with usual paths. ---------- components: Library (Lib) files: pdb_checkline.patch keywords: patch messages: 110065 nosy: __Vano priority: normal severity: normal status: open title: pdb.Pdb.checkline() throws AttributeError if called before starting a debug session type: behavior versions: Python 2.7 Added file: http://bugs.python.org/file17955/pdb_checkline.patch _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue9230> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
