bug#6098: 23.1; gud-break doesn't deal with Python modules

[David Abrahams]

Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the bug-gnu-emacs@gnu.org mailing list,
and to the gnu.emacs.bug news group.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

1. Create the following directory hierarchy:

       /tmp/fu

       /tmp/fu/probe (executable)
           #!/bin/sh
           python -m pdb /tmp/fu/tst.py

       /tmp/fu/bar/__init__.py
           import bar.baz

       /tmp/fu/bar/baz.py
           print 'hello'

2. `M-x pdb RET /tmp/fu/probe RET'

3. `import sys RET'

4. `p sys.path'

5. Note that /tmp/fu is the first directory in sys.path

6. `C-x C-f /tmp/fu/bar/baz.py'

7. `M-x gud-break'

You'll see “pdbtrack: Traceback cue not found” in *Messages* and
“***  'bar.py' not found from sys.path” in *gud*.  No breakpoint is
set.  However, the module is available on sys.path as bar.baz

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
/Applications/Emacs.app/Contents/Resources/etc/DEBUG for instructions.


In GNU Emacs 23.1.1 (i386-apple-darwin9.8.0, NS apple-appkit-949.54)
 of 2009-08-16 on black.local
Windowing system distributor `Apple', version 10.3.1038
configured using `configure  '--with-ns''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: nil
  value of $XMODIFIERS: nil
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Major mode: Debugger

Minor modes in effect:
  diff-auto-refine-mode: t
  show-paren-mode: t
  global-auto-revert-mode: t
  delete-selection-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
C-x C-f / t m p / x <return> M-x M-p C-g M-x p d b 
<return> C-a C-k . / p r o b e 2 <return> i m p o r 
t SPC s y s <return> p r i n t SPC s y s . p a t h 
<return> C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p C-p 
C-p C-p C-p C-x C-p C-x C-b C-x C-b C-x C-b C-x C-b 
C-x C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n 
C-n C-n C-n C-n C-x C-f f u / _ _ <tab> <return> C-x 
C-f C-g C-x SPC C-x C-p C-x C-b C-x C-b C-x C-b C-x 
C-n C-x C-f b a r <tab> <return> C-x SPC C-x C-p C-p 
C-p C-p C-p M-x r e p o r t - e m a <tab> <return> 
C-g C-g C-x C-n C-h k C-x SPC C-x C-p C-x C-k C-n C-n 
C-n C-n C-n M-x M-p <return>

Recent messages:
Quit [2 times]
Mark set
pdbtrack: Traceback cue not found [2 times]
Quit
Command: break __init__.py:1
pdbtrack: Traceback cue not found
Command: break bar.py:1
pdbtrack: Traceback cue not found
Quit [2 times]
Type C-x 4 C-o RET to restore the other window.

-- 
Dave Abrahams           Meet me at BoostCon: http://www.boostcon.com
BoostPro Computing
http://www.boostpro.com