Import CPython 3.14.7+ stable branch (2026-08-22)

Summary:
Imported python/cpython `3.14.7+` from upstream rev [`27721dd`](https://www.github.com/python/cpython/commit/27721ddc1690fe76afdb3f76615765bbcd48de67) (committed 2026-08-22 18:19:58+00:00).

# Commit Info

- Base: (`3.14.7+`) - [`f89e637`](https://www.github.com/python/cpython/commit/f89e637fdf4641d5a1e8eb3da56b164bcb9bb3df) (commit date: 2026-08-22 04:17:22+00:00)
- Imported: (`3.14.7+`) - [`27721dd`](https://www.github.com/python/cpython/commit/27721ddc1690fe76afdb3f76615765bbcd48de67) (commit date: 2026-08-22 18:19:58+00:00)

# Noteworthy file changes

- Low-signal files (1 added) (NEWS.d, docs, .github)

Complete list of added/removed files: https://www.internalfb.com/intern/everpaste/?color=0&handle=GDeKSynmij47ZPkHALwUOq7rPew6br0LAAAz

Reviewed By: itamaro

Differential Revision: D117120647

fbshipit-source-id: 6c3aac947632193dd95398fd13d60d6effec35c3

Author: generatedunixname1734921407115435

Doc/glossary.rst

@@ -509,7 +509,7 @@ Glossary
       A piece of syntax which can be evaluated to some value.  In other words,
       an expression is an accumulation of expression elements like literals,
       names, attribute access, operators or function calls which all return a
-      value.  In contrast to many other languages, not all language constructs
+      value.  Not all language constructs
       are expressions.  There are also :term:`statement`\s which cannot be used
       as expressions, such as :keyword:`while`.  Assignments are also statements,
       not expressions.

Misc/NEWS.d/next/Build/2026-08-20-17-41-11.gh-issue-155911.yL3z8q.rst

@@ -0,0 +1,2 @@
+Fix curses detection when a curses library is already in ``LIBS``.
+Patch by Shamil Abdulaev.

configure

@@ -6956,8 +6956,9 @@ WITH_SAVE_ENV([
   ]))
 
   # Check that we're able to link with crucial curses/panel functions. This
-  # also serves as a fallback in case pkg-config failed.
-  AS_VAR_APPEND([LIBS], [" $CURSES_LIBS $PANEL_LIBS"])
+  # also serves as a fallback in case pkg-config failed. Extension modules are
+  # not linked with LIBS, so exclude it to get the required libraries.
+  LIBS="$CURSES_LIBS $PANEL_LIBS"
   AC_SEARCH_LIBS([initscr], [ncursesw ncurses],
     [AS_VAR_IF([have_curses], [no],
       [AS_VAR_SET([have_curses], [yes])