Date: Thu, 19 Nov 2015 06:41:59 +0000 From: raviqqe <raviqqe@gmail.com> To: Craig Rodrigues <rodrigc@FreeBSD.org> Cc: freebsd-python@freebsd.org Subject: Re: Python curses module does not print any attributed space character on FreeBSD 11-current Message-ID: <564D6F37.7040804@gmail.com> In-Reply-To: <CAG=rPVdLctDFzCm7K824tkPC1dDBK=mSqkicg0Fs%2BdJJK1Nh8w@mail.gmail.com> References: <564D4739.1090504@gmail.com> <CAG=rPVdLctDFzCm7K824tkPC1dDBK=mSqkicg0Fs%2BdJJK1Nh8w@mail.gmail.com>
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On 11/19/15 04:58 AM, Craig Rodrigues wrote:
> On Wed, Nov 18, 2015 at 7:51 PM, raviqqe <raviqqe@gmail.com
> <mailto:raviqqe@gmail.com>> wrote:
>
> Hello,
>
> TL;DR
> I encountered a bug-like behavior of a Python built-in module.
> Could you reproduce it in C?
>
> While working with Python and its curses module on FreeBSD
> 11-current (x86_64),
> I found a weird behavior of the module. The code below doesn't
> print any character
> although it should print a space on the upper-left corner.
>
> ```
> # test.py
>
> import curses
>
> window = curses.initscr()
> window.attrset(curses.A_NORMAL)
> window.addch(" ")
> window.getch()
> curses.endwin()
> ```
>
> The cause is `window.attrset()` and when I removed the line it
> works just fine.
> And, with the visible characters (such as 'A' and '?' except for '
> ' and '\t'),
> it works fine even if window.attrset() is there.
>
> Hi,
>
> I have a:
> * FreeBSD-CURRENT system: built from Subversion revision r290830
> * python27-2.710_1 (installed with pkg install lang/python )
> * python35-3.5.0 (installed with pkg install lang/python35 )
>
> I ran your test case, and did not encounter your problem.
> For me, a space is printed in the top left.
>
> Also, I see:
>
>
> # ldd /usr/local/lib/python2.7/lib-dynload/_curses.so
> /usr/local/lib/python2.7/lib-dynload/_curses.so:
> libthr.so.3 => /lib/libthr.so.3 (0x801212000)
> libncurses.so.8 => /lib/libncurses.so.8 (0x801437000)
> libpython2.7.so.1 => /usr/local/lib/libpython2.7.so.1
> (0x80168a000)
> libc.so.7 => /lib/libc.so.7 (0x800822000)
> libintl.so.8 => /usr/local/lib/libintl.so.8 (0x801a48000)
> libutil.so.9 => /lib/libutil.so.9 (0x801c52000)
> libm.so.5 => /lib/libm.so.5 (0x801e65000)
> # ldd /usr/local/lib/python3.5/lib-dynload/_curses.so
> /usr/local/lib/python3.5/lib-dynload/_curses.so:
> libthr.so.3 => /lib/libthr.so.3 (0x801214000)
> libncurses.so.8 => /lib/libncurses.so.8 (0x801439000)
> libpython3.5m.so.1.0 => /usr/local/lib/libpython3.5m.so.1.0
> (0x801800000)
> libc.so.7 => /lib/libc.so.7 (0x800822000)
> libintl.so.8 => /usr/local/lib/libintl.so.8 (0x801c9b000)
> libutil.so.9 => /lib/libutil.so.9 (0x801ea5000)
> libm.so.5 => /lib/libm.so.5 (0x8020b8000)
>
> At least for me, the Python _curses.so is linking against ncurses.so.8.
>
> --
> Craig
I always build and install ports via the ports system using `portmaster`
and never use `pkg`.
Just now, I rebuilt lang/python27 and lang/python35.
But, still on my machine,
```
% ldd /usr/local/lib/python2.7/lib-dynload/_curses.so
/usr/local/lib/python2.7/lib-dynload/_curses.so:
libthr.so.3 => /lib/libthr.so.3 (0x801212000)
libncurses.so.5 => /usr/lib/libncurses.so.5 (0x801437000)
libtinfo.so.5 => /usr/local/lib/libtinfo.so.5 (0x80168a000)
libpython2.7.so.1 => /usr/local/lib/libpython2.7.so.1 (0x8018c0000)
libc.so.7 => /lib/libc.so.7 (0x800822000)
libintl.so.8 => /usr/local/lib/libintl.so.8 (0x801c7c000)
libutil.so.9 => /lib/libutil.so.9 (0x801e87000)
libm.so.5 => /lib/libm.so.5 (0x80209a000)
% ldd /usr/local/lib/python3.5/lib-dynload/_curses.so
/usr/local/lib/python3.5/lib-dynload/_curses.so:
libthr.so.3 => /lib/libthr.so.3 (0x80121c000)
libncurses.so.5 => /usr/lib/libncurses.so.5 (0x801441000)
libtinfo.so.5 => /usr/local/lib/libtinfo.so.5 (0x801694000)
libpython3.5dm.so.1.0 => /usr/local/lib/libpython3.5dm.so.1.0
(0x801a00000)
libc.so.7 => /lib/libc.so.7 (0x800822000)
libintl.so.8 => /usr/local/lib/libintl.so.8 (0x802057000)
libutil.so.9 => /lib/libutil.so.9 (0x802262000)
libm.so.5 => /lib/libm.so.5 (0x802475000)
```
And devel/ncurses is explicitly required by them.
```
% pkg info -r ncurses
ncurses-5.9.20150214_2:
sterm-0.6
python27-2.7.10_1
sqlite3-3.9.2
tmux-2.1
python34-3.4.3_1
python35-3.5.0_1
zsh-5.1.1
% pkg info -d python27
python27-2.7.10_1:
openssl-1.0.2_4
readline-6.3.8
libffi-3.2.1
gettext-runtime-0.19.6
ncurses-5.9.20150214_2
% pkg info -d python35
python35-3.5.0_1:
openssl-1.0.2_4
readline-6.3.8
libffi-3.2.1
gettext-runtime-0.19.6
ncurses-5.9.20150214_2
```
What's happening on my machine?
My uname is here.
```
% uname -a
FreeBSD <my hostname> 11.0-CURRENT FreeBSD 11.0-CURRENT #10 r291009: Wed
Nov 18 06:47:11 UTC 2015 root@<my
hostname>:/usr/obj/usr/src/sys/GENERIC amd64
```
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