Trim test comments and NEWS wording

Author: tonghuaroot

Lib/test/test_free_threading/test_string_template_race.py

@@ -8,13 +8,10 @@
 @threading_helper.requires_working_threading()
 class TestTemplateCompileRace(unittest.TestCase):
     def test_concurrent_first_use(self):
-        # Template compiles its pattern lazily on first use and caches it on the
-        # class.  Race that lazy compile from many threads and confirm none hits
-        # a spurious ValueError from recompiling an already-compiled pattern.
-        # Use a throwaway subclass each round so the shared string.Template is
-        # never mutated; subclasses precompile in __init_subclass__, so restore
-        # the sentinel descriptor (string._TemplatePattern) to re-arm the lazy
-        # path before racing.
+        # Racing the lazy pattern compile must not raise a spurious ValueError
+        # from recompiling an already-compiled pattern.  A throwaway subclass,
+        # re-armed to the sentinel each round, keeps string.Template unmutated
+        # (subclasses precompile eagerly in __init_subclass__).
         uncompiled = string._TemplatePattern
         errors = []
 

Lib/test/test_string/test_string.py

@@ -302,8 +302,6 @@ def test_SafeTemplate(self):
     def test_precompiled_pattern(self):
         # A subclass may supply an already-compiled pattern; it must be reused,
         # not recompiled (re.compile() rejects flags on a compiled pattern).
-        # This is the non-threaded form of the free-threading lazy-compile race
-        # where a thread observes the pattern another thread just compiled.
         import re
         compiled = re.compile(
             r'\$(?:(?P<escaped>\$)|(?P<named>[a-z]+)|'

Misc/NEWS.d/next/Library/2026-07-05-12-00-00.gh-issue-153056.tMpLat.rst

@@ -1,2 +1,2 @@
-Fix a race in :class:`string.Template` where concurrent first use of a
-template on the free-threaded build could raise a spurious :exc:`ValueError`.
+Fix a race in :class:`string.Template` where concurrent first use on the
+free-threaded build could raise a spurious :exc:`ValueError`.