ncurses putwin() fails in test_module_funcs

[xdegaye]

BPO	27323
Nosy	@Yhg1s, @xdegaye, @serhiy-storchaka, @yan12125

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2016-08-20.18:04:51.329>
created_at = <Date 2016-06-15.08:15:10.941>
labels = ['type-bug', 'library']
title = 'ncurses putwin() fails in test_module_funcs'
updated_at = <Date 2016-09-06.18:06:03.023>
user = 'https://github.com/xdegaye'

bugs.python.org fields:

activity = <Date 2016-09-06.18:06:03.023>
actor = 'xdegaye'
assignee = 'none'
closed = True
closed_date = <Date 2016-08-20.18:04:51.329>
closer = 'serhiy.storchaka'
components = ['Library (Lib)']
creation = <Date 2016-06-15.08:15:10.941>
creator = 'xdegaye'
dependencies = []
files = []
hgrepos = []
issue_num = 27323
keywords = []
message_count = 6.0
messages = ['268608', '273229', '273233', '273235', '273238', '274581']
nosy_count = 4.0
nosy_names = ['twouters', 'xdegaye', 'serhiy.storchaka', 'yan12125']
pr_nums = []
priority = 'normal'
resolution = 'third party'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue27323'
versions = ['Python 2.7', 'Python 3.5', 'Python 3.6']

[xdegaye]

This is with ncurses 6.0.

$ ./python -m test -v -u curses -m test_module_funcs test_curses
== CPython 3.6.0a2+ (default:e3bb87952c62, Jun 15 2016, 08:24:47) [GCC 6.1.1 20160501]
==   Linux-4.6.1-2-ARCH-x86_64-with-arch little-endian
==   hash algorithm: siphash24 64bit
==   /home/xavier/src/python/default/build/test_python_17932
Testing with flags: sys.flags(debug=0, inspect=0, interactive=0, optimize=0, dont_write_bytecode=0, no_user_site=0, no_site=0, ignore_environment=0, verbose=0, bytes_warning=0, quiet=0, hash_randomization=1, isolated=0)
Run tests sequentially
0:00:00 [1/1] test_curses
test_module_funcs (test.test_curses.TestCurses)
Test module-level functions ... 
ERROR

======================================================================
ERROR: test_module_funcs (test.test_curses.TestCurses)
Test module-level functions
----------------------------------------------------------------------

Traceback (most recent call last):
  File "/home/xavier/src/python/default/Lib/test/test_curses.py", line 212, in test_module_funcs
    self.stdscr.putwin(f)
_curses.error: putwin() returned ERR

[yan12125]

This is actually a ncurses bug: http://lists.gnu.org/archive/html/bug-ncurses/2016-05/msg00000.html

[serhiy-storchaka]

Thanks Chi Hsuan Yen.

Just wondering, how you built Python with ncurses 6.0 Xavier? There is an issue with compiling with ncurses 6.0 (bpo-25720).

[yan12125]

NCURSES_OPAQUE is enabled if --with-reentrant is used. From Xavier's log I guess it's on Arch Linux. Arch Linux does not use --with-reentrant in ncurses [1] and it seems OpenSUSE does [2].

[1] https://git.archlinux.org/svntogit/packages.git/tree/trunk/PKGBUILD?h=packages/ncurses
[2] http://download.opensuse.org/repositories/home:/sleep_walker:/ncurses/openSUSE_Factory_ARM/src/ncurses6-6.0-13.9.src.rpm

[serhiy-storchaka]

Thanks again for estimation.

[xdegaye]

Just wondering, how you built Python with ncurses 6.0 Xavier?

I am using archlinux ncurses 6.0 [1] (sorry for the delay, no internet on a sail crossing).

[1] https://www.archlinux.org/packages/core/x86_64/ncurses/