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patch 9.1.0784: there are several problems with python 3.13

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Problem:  there are several problems with python 3.13
Solution: fix the problems in the python3 interface (Boris Staletic)

This commit does the following things:
1) Since python 3.13.0b1, all statically defined objects are "immortal".
   Besides never getting garbage collected, this also affects reference
   counting:

   - Immportal objects have a reference count of 2^32-1.
   - Reference counting is a no-op.

   All this is considered implementation details by cpython, so
   documentation is next to non-existent.

   Relevant CPython source code:
   https://github.com/python/cpython/blob/v3.13.0/Include/object.h#L62-L107
   https://github.com/python/cpython/blob/v3.13.0/Include/object.h#L389-L391

2) Opt-out of ANSI-painted python stack traces

3) Make python error message severity more consistent

fixes: #15838
closes: #15842

Signed-off-by: Boris Staletic <boris.staletic@protonmail.com>
Signed-off-by: puremourning <puremourning@users.noreply.github.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Boris Staletic
2024-10-14 20:28:39 +02:00
committed by Christian Brabandt
parent 322ad0c953
commit 83a06705dc
4 changed files with 20 additions and 9 deletions
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14
src/testdir/test_python3.vim
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@@ -4029,30 +4029,34 @@ func Test_python3_iter_ref()
v = create_list()
base_ref_count = sys.getrefcount(v)
for el in v:
vim.vars['list_iter_ref_count_increase'] = sys.getrefcount(v) - base_ref_count
vim.vars['list_iter_ref_count_increase'] = sys.getrefcount(v) - base_ref_count
create_dict = vim.Function('Create_vim_dict')
v = create_dict()
base_ref_count = sys.getrefcount(v)
for el in v:
vim.vars['dict_iter_ref_count_increase'] = sys.getrefcount(v) - base_ref_count
vim.vars['dict_iter_ref_count_increase'] = sys.getrefcount(v) - base_ref_count
v = vim.buffers
base_ref_count = sys.getrefcount(v)
for el in v:
vim.vars['bufmap_iter_ref_count_increase'] = sys.getrefcount(v) - base_ref_count
vim.vars['bufmap_iter_ref_count_increase'] = sys.getrefcount(v) - base_ref_count
v = vim.options
base_ref_count = sys.getrefcount(v)
for el in v:
vim.vars['options_iter_ref_count_increase'] = sys.getrefcount(v) - base_ref_count
vim.vars['options_iter_ref_count_increase'] = sys.getrefcount(v) - base_ref_count
test_python3_iter_ref()
EOF
call assert_equal(1, g:list_iter_ref_count_increase)
call assert_equal(1, g:dict_iter_ref_count_increase)
call assert_equal(1, g:bufmap_iter_ref_count_increase)
if py3eval('sys.version_info[:2] < (3, 13)')
call assert_equal(1, g:bufmap_iter_ref_count_increase)
else
call assert_equal(0, g:bufmap_iter_ref_count_increase)
endif
call assert_equal(1, g:options_iter_ref_count_increase)
endfunc