bug#6099: 23.1; pdb can't invoke python directly

bug#6099: 23.1; pdb can't invoke python directly

[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. `M-! echo 'print ".hello"' > foo.py RET
2. `M-x pdb RET python -m pdb foo.py RET'

I get a *gud* buffer with no prompt.  If I create a little executable
script, “bar”

    #!/bin/sh
    python -m pdb foo.py

and then `M-x pdb RET ./bar RET'

Everything works as expected.

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: Python

Minor modes in effect:
  shell-dirtrack-mode: t
  diff-auto-refine-mode: t
  show-paren-mode: t
  server-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 b : SPC <right> <return> g n n n n n n n n n <return> 
C-x C-k <tab> k y e s <return> C-x C-p q u i t <return> 
q u i t <return> M-x M-p M-p M-p M-p M-p M-p <return> 
<return> c <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-p C-p C-p C-p C-p C-p C-p 
C-p C-p C-p C-p C-p C-n C-n C-n 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-p C-p C-p C-p 
C-p C-p C-p C-p C-p 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-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-n C-n 
C-n C-n C-n C-n C-e C-n C-n C-, C-, C-, C-, C-, C-, 
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-p C-e 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-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-e C-n C-n C-n C-n C-n C-n C-p C-p 
C-p C-n C-n C-n C-a C-. C-. C-. C-. C-x C-n C-x C-f 
<M-backspace> i n <backspace> <backspace> p i p <tab> 
r e q <return> C-x C-k C-x C-f M-p <tab> <return> C-x 
C-g 9 8 3 <return> C-p C-p C-p C-p C-e C-n C-n C-n 
C-p C-, C-, C-, C-. C-. C-, C-p C-, C-, C-x C-b C-x 
C-b C-x C-p 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-n C-n C-. C-. C-. C-. C-, C-, C-, C-, 
M-x r e p o r t - e m <tab> b u <tab> <return>

Recent messages:
Mark saved where search started
Mark set
pdbtrack: Traceback cue not found
Reverting buffer `pkg_resources.py'.
Mark set [2 times]
pdbtrack: line 161, file /Users/dave/work/pipsync/int/pip/commands/install.py
Mark set
pdbtrack: Traceback cue not found
(New file)
Mark set


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

bug#6099: 23.1; pdb can't invoke python directly

[Chong Yidong]

> 1. `M-! echo 'print ".hello"' > foo.py RET
> 2. `M-x pdb RET python -m pdb foo.py RET'
>
> I get a *gud* buffer with no prompt.
>
> In GNU Emacs 23.1.1 (i386-apple-darwin9.8.0, NS apple-appkit-949.54)
>  of 2009-08-16 on black.local

I'm afraid I can't reproduce this.  I get a *gud-pdb* buffer, as
expected.  Maybe this is operating system specific.

bug#6099: 23.1; pdb can't invoke python directly

[Chong Yidong]

Dave Abrahams <dave@boostpro.com> writes:

> Let me try to fix the instructions for reproducing this, though:
>
> 1. `M-! echo 'print "hello"' > foo.py RET'
> 2. `M-S-: (pdb "python -m pdb foo.py") RET'
>
> Now hit return.  *gud-pdb* does _not_ contain ">>>"

I get a buffer containing

  Current directory is ~/
  > /home/cyd/foo.py(1)<module>()
  -> print "hello"
  (Pdb) 

With "(Pdb)" as the prompt.

bug#6099: 23.1; pdb can't invoke python directly

[Dave Abrahams]

On Sun, Aug 22, 2010 at 5:09 PM, Chong Yidong <cyd@stupidchicken.com> wrote:
> Dave Abrahams <dave@boostpro.com> writes:
>
>> Let me try to fix the instructions for reproducing this, though:
>>
>> 1. `M-! echo 'print "hello"' > foo.py RET'
>> 2. `M-S-: (pdb "python -m pdb foo.py") RET'
>>
>> Now hit return.  *gud-pdb* does _not_ contain ">>>"
>
> I get a buffer containing
>
>  Current directory is ~/
>  > /home/cyd/foo.py(1)<module>()
>  -> print "hello"
>  (Pdb)
>
> With "(Pdb)" as the prompt.

Oh, well I don't.  Perhaps it is indeed platform specific.

-- 
Dave Abrahams
BoostPro Computing
http://www.boostpro.com

bug#6099: (no subject)

[Fabián Ezequiel Gallina]

I just quickly tested this in the emacs-24 branch and worked for me, I'm 
closing this. Feel free to reopen if you find it happening again.