[ python-Bugs-1464056 ] curses library in python 2.4.3 broken

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Sun Apr 9 12:29:25 CEST 2006


Bugs item #1464056, was opened at 2006-04-04 10:47
Message generated for change (Comment added) made by loewis
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Category: Python Library
Group: Python 2.4
Status: Open
Resolution: None
Priority: 5
Submitted By: nomind (vnainar)
Assigned to: Nobody/Anonymous (nobody)
Summary: curses library in python 2.4.3 broken

Initial Comment:
My python programs using curses  library do not work
with version 2.4.3.Even the 'ncurses.py ' demo program
in the Demo/curses directory does not work correctly.
The problem seems to be in the 'panels' library


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>Comment By: Martin v. Löwis (loewis)
Date: 2006-04-09 12:29

Message:
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I can't reproduce any of this on Debian;
Demo/curses/ncurses.py runs fine. Can you please
1. run ldd on _curses.so, and report the output, and
2. edit setup.py, removing the lines that deal with ncursesw,
3. atler_: produce a gdb backtrace on the time of the crash,
4: vnainar: please report what you mean by "does not work".
Does it erase your hard disk? turn off the machine? Paint
things blue instead of red?

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Comment By: Jan Palus (atler_)
Date: 2006-04-09 12:06

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I confirm the problem. Every program using curses library
segfaults and there's only one error before it happens:

...
import curses # directory /usr/share/python2.4/curses
import curses # precompiled from
/usr/share/python2.4/curses/__init__.pyc
dlopen("/usr/lib/python2.4/lib-dynload/_curses.so", 2);
import _curses # dynamically loaded from
/usr/lib/python2.4/lib-dynload/_curses.so
import curses.wrapper # precompiled from
/usr/share/python2.4/curses/wrapper.pyc
import curses.panel # precompiled from
/usr/share/python2.4/curses/panel.pyc
dlopen("/usr/lib/python2.4/lib-dynload/_curses_panel.so", 2);
import _curses_panel # dynamically loaded from
/usr/lib/python2.4/lib-dynload/_curses_panel.so
Traceback (most recent call last):
  File "ncurses.py", line 273, in ?
    curses.wrapper(demo_panels)
  File "/usr/share/python2.4/curses/wrapper.py", line 49, in
wrapper
_curses.error: nocbreak() returned ERR

I'm running Linux (PLD) with Python 2.4.3 and ncurses 5.5.
With Python 2.4.2 everything worked fine.

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Comment By: nomind (vnainar)
Date: 2006-04-06 07:38

Message:
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Sorry my original post was incomplete. I am running
slackware 10.2 (linux kernel 2.6).The python library was
tested with ncurses 5.4 and ncurses 5.5( the latest
release). All  programs run OK with 2.4.1.As I said ,the 
curses demo that comes with the Python distributions runs OK
with 2.4.1 but 
not with 2.4.3 - I have both on my machine


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Comment By: Martin v. Löwis (loewis)
Date: 2006-04-05 00:16

Message:
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user_id=21627

What do you mean by "do not work"? What operating system and
what curses implementation are you using?

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