emacs shell hangs on W32 with python

emacs shell hangs on W32 with python

[emin.shopper]

Emacs seems to freeze when doing certain shell commands on Microsoft
Windows. The following is a simple example with Xemacs:

----------------------------------------------------------

[Xemacs version 21.4.19; January 2006]

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

h:\>c:\python25\python.exe -i
c:\python25\python.exe -i
Python 2.5 (r25:51908, Sep 19 2006, 09:52:17) [MSC v.1310 32 bit
(Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import Tkinter
>>>
>>>
>>> t = Tkinter.Tk()
>>> 2
2
2

-------------------------------------------
At this point, python no longer accepts input. This example works fine
when starting python through dos instead of emacs. Note, I am not using
python-mode.el so that is not the problem. I also reproduced the
problem with GNU Emacs (version "GNU Emacs 21.3.1
(i386-mingw-nt5.1.2600)
 of 2004-03-10 on NYAUMO")


Is there any way to run python through emacs or xemacs without having
it hang or is shell support broken?

Thanks in advance,
-Emin

Re: emacs shell hangs on W32 with python

[Brian Elmegaard]

emin.shopper@gmail.com writes:

> Is there any way to run python through emacs or xemacs without having
> it hang or is shell support broken?

Doing it from eshell gives the same problem :-(
-- 
Brian (remove the sport for mail)
http://www.et.web.mek.dtu.dk/Staff/be/be.html
Rugbyklubben Speed Scandinavian Open 7s Rugby http://www.rkspeed.dk

Re: emacs shell hangs on W32 with python

[emin.shopper]

Hmm, it doesn't even work if I run the cygwin version of GNU Emacs and
have it start the Windows version of python through python-mode or if I
start a shell in emacs and then start the Windows version of python
through the shell. Interestingly, however, things DO seem to work if I
use cygwin emacs with cygwin python (version 2.4.1).

I wonder if the windows version of Tkinter does something weird such as
implicitly calling Tk.mainloop()...

Any help would be much appreciated.

Brian Elmegaard wrote:
> emin.shopper@gmail.com writes:
>
> > Is there any way to run python through emacs or xemacs without having
> > it hang or is shell support broken?
>
> Doing it from eshell gives the same problem :-(
> --
> Brian (remove the sport for mail)
> http://www.et.web.mek.dtu.dk/Staff/be/be.html
> Rugbyklubben Speed Scandinavian Open 7s Rugby http://www.rkspeed.dk

Re: emacs shell hangs on W32 with python

[Lennart Borgman]

Would it not be a good idea to try the CVS version of Emacs for this now 
since the pretest will soon begin? Go here for precompiled versions:

    http://www.emacswiki.org/cgi-bin/wiki/CategoryWThirtyTwo




emin.shopper@gmail.com wrote:
> Hmm, it doesn't even work if I run the cygwin version of GNU Emacs and
> have it start the Windows version of python through python-mode or if I
> start a shell in emacs and then start the Windows version of python
> through the shell. Interestingly, however, things DO seem to work if I
> use cygwin emacs with cygwin python (version 2.4.1).
>
> I wonder if the windows version of Tkinter does something weird such as
> implicitly calling Tk.mainloop()...
>
> Any help would be much appreciated.
>
> Brian Elmegaard wrote:
>   
>> emin.shopper@gmail.com writes:
>>
>>     
>>> Is there any way to run python through emacs or xemacs without having
>>> it hang or is shell support broken?
>>>       
>> Doing it from eshell gives the same problem :-(
>> --
>> Brian (remove the sport for mail)
>> http://www.et.web.mek.dtu.dk/Staff/be/be.html
>> Rugbyklubben Speed Scandinavian Open 7s Rugby http://www.rkspeed.dk
>>     

Re: emacs shell hangs on W32 with python

[emin.shopper]

The same problems occur with the latest emacs binary from CVS
(emacs-version)

"GNU Emacs 23.0.0.1 (i386-mingw-nt5.1.2600) of 2006-10-16 on DTOP"

Lennart Borgman wrote:
> Would it not be a good idea to try the CVS version of Emacs for this now
> since the pretest will soon begin? Go here for precompiled versions:
>
>     http://www.emacswiki.org/cgi-bin/wiki/CategoryWThirtyTwo
>
>
>
>
> emin.shopper@gmail.com wrote:
> > Hmm, it doesn't even work if I run the cygwin version of GNU Emacs and
> > have it start the Windows version of python through python-mode or if I
> > start a shell in emacs and then start the Windows version of python
> > through the shell. Interestingly, however, things DO seem to work if I
> > use cygwin emacs with cygwin python (version 2.4.1).
> >
> > I wonder if the windows version of Tkinter does something weird such as
> > implicitly calling Tk.mainloop()...
> >
> > Any help would be much appreciated.
> >
> > Brian Elmegaard wrote:
> >
> >> emin.shopper@gmail.com writes:
> >>
> >>
> >>> Is there any way to run python through emacs or xemacs without having
> >>> it hang or is shell support broken?
> >>>
> >> Doing it from eshell gives the same problem :-(
> >> --
> >> Brian (remove the sport for mail)
> >> http://www.et.web.mek.dtu.dk/Staff/be/be.html
> >> Rugbyklubben Speed Scandinavian Open 7s Rugby http://www.rkspeed.dk
> >>

Re: emacs shell hangs on W32 with python

[Lennart Borgman]

Could you then please post a bug report? Just choose "Help - Send bug 
report" from the menus.

If you are using the distribution with Emacs+EmacsW32 then please use 
the unpatched version for bug reports.


emin.shopper@gmail.com wrote:
> The same problems occur with the latest emacs binary from CVS
> (emacs-version)
>
> "GNU Emacs 23.0.0.1 (i386-mingw-nt5.1.2600) of 2006-10-16 on DTOP"
>
> Lennart Borgman wrote:
>   
>> Would it not be a good idea to try the CVS version of Emacs for this now
>> since the pretest will soon begin? Go here for precompiled versions:
>>
>>     http://www.emacswiki.org/cgi-bin/wiki/CategoryWThirtyTwo
>>
>>
>>
>>
>> emin.shopper@gmail.com wrote:
>>     
>>> Hmm, it doesn't even work if I run the cygwin version of GNU Emacs and
>>> have it start the Windows version of python through python-mode or if I
>>> start a shell in emacs and then start the Windows version of python
>>> through the shell. Interestingly, however, things DO seem to work if I
>>> use cygwin emacs with cygwin python (version 2.4.1).
>>>
>>> I wonder if the windows version of Tkinter does something weird such as
>>> implicitly calling Tk.mainloop()...
>>>
>>> Any help would be much appreciated.
>>>
>>> Brian Elmegaard wrote:
>>>
>>>       
>>>> emin.shopper@gmail.com writes:
>>>>
>>>>
>>>>         
>>>>> Is there any way to run python through emacs or xemacs without having
>>>>> it hang or is shell support broken?
>>>>>
>>>>>           
>>>> Doing it from eshell gives the same problem :-(
>>>> --
>>>> Brian (remove the sport for mail)
>>>> http://www.et.web.mek.dtu.dk/Staff/be/be.html
>>>> Rugbyklubben Speed Scandinavian Open 7s Rugby http://www.rkspeed.dk
>>>>         

Re: emacs shell hangs on W32 with python

[emin.shopper]

Lennart Borgman wrote:
> Could you then please post a bug report? Just choose "Help - Send bug
> report" from the menus.

I sent a bug-report to the emacs list as requested and got an email
reply saying the message is being held for a moderator to look at.
Since the bug seems to be in the interaction of emacs with python, I'm
also cross-posting this to comp.lang.python in case anyone there can
help. (Note this bug shows up in all the versions of emacs that I have
tried including Xemacs and GNU Emacs 21).

The body of the bug-report is below:

I started emacs with -q did ESC-x shell and entered the following

----------------------------------------------------------------------

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

h:\projects\arcp_db\trunk\src\gui>c:\python25\python.exe -i
c:\python25\python.exe -i
Python 2.5 (r25:51908, Sep 19 2006, 09:52:17) [MSC v.1310 32 bit
(Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import Tkinter
>>> t = Tkinter.Tk()
>>> 2

----------------------------------------------------------------------

Note that after the call to Tkinter.Tk() my python window freezes and
no longer works. Killing the Tk window does not help. I realize that
this may seem like a bug in python and not emacs except that if I do
exactly the same thing through a dos shell I have no problems (i.e.,
python keeps accepting input). Consequently, it seems like emacs is
doing something funky when running the shell that interferes with
python in a way that running the shell without emacs would not do.


Sincerely,
-Emin Martinian


In GNU Emacs 23.0.0.1 (i386-mingw-nt5.1.2600)
 of 2006-10-16 on DTOP
X server distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (4.1) --cflags  -O2 -g0
-march=i386 -mtune=i686 -pipe -IC:/gnuwin32/include_emacs
-IC:/gnuwin32/lib -IC:/gnuwin32/src --ldflags  -s '

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: ENU
  locale-coding-system: cp1252
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  encoded-kbd-mode: t
  tooltip-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-compression-mode: t
  line-number-mode: t

Recent input:
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <menu-bar> <help-menu>
<report-emacs-bug>

Recent messages:
(c:\Program Files\emacs-23\ntemacs23\bin\emacs.exe -q)
Loading encoded-kb...done
For information about the GNU Project and its goals, type C-h C-p. [2
times]
Loading emacsbug...
Loading regexp-opt...done
Loading emacsbug...done