commit 83a06705dcfb10e13a75eace6319cb77b6af4d29
author Boris Staletic <boris.staletic@protonmail.com> Mon Oct 14 20:28:39 2024 +0200
committer Christian Brabandt <cb@256bit.org> Mon Oct 14 20:28:39 2024 +0200
tree d9d9fdd6698cdab926b0f7bdfd49f10ff5c85240
parent 322ad0c953b7a3023cd2a65db61d05e180a5d682

patch 9.1.0784: there are several problems with python 3.13

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>

src/testdir/test_python3.vim

diff --git a/src/testdir/test_python3.vim b/src/testdir/test_python3.vim
index 7f04f11..3178cff 100644
--- a/src/testdir/test_python3.vim
+++ b/src/testdir/test_python3.vim
@@ -4029,30 +4029,34 @@
       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