Import CPython 3.14.6+ stable branch (2026-08-02)

Summary:
Imported python/cpython `3.14.6+` from upstream rev [`b0ef8b4`](https://www.github.com/python/cpython/commit/b0ef8b4f3ee5dd52748bfa991cfc765edd26e8f9) (committed 2026-08-02 18:18:09+00:00).

# Commit Info

- Base: (`3.14.6+`) - [`3a09a22`](https://www.github.com/python/cpython/commit/3a09a22e7241e2e742898a02589c56e07e6f18e7) (commit date: 2026-08-01 20:21:13+00:00)
- Imported: (`3.14.6+`) - [`b0ef8b4`](https://www.github.com/python/cpython/commit/b0ef8b4f3ee5dd52748bfa991cfc765edd26e8f9) (commit date: 2026-08-02 18:18:09+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=GFVosic5g1Jbrd0GADdaNXVl8rEVbr0LAAAz

Reviewed By: alexmalyshev

Differential Revision: D114589373

fbshipit-source-id: ea264b1617bf70d2e71d8f7bd3b05f7e6ae25e69

Author: generatedunixname1734921407115435

.github/workflows/build.yml

@@ -385,7 +385,7 @@ jobs:
         with:
           persist-credentials: false
       - name: Build and test
-        run: JAVA_HOME="${JAVA_HOME_21_X64:-$JAVA_HOME_21_arm64}" ./Android/android.py ci --fast-ci ${{ matrix.arch }}-linux-android
+        run: ./Android/android.py ci --fast-ci ${{ matrix.arch }}-linux-android
 
   build-ios:
     name: iOS

Android/README.md

@@ -32,7 +32,7 @@ The script also requires the following commands to be on the `PATH`:
 
 * `curl`
 * `java` (or set the `JAVA_HOME` environment variable).
-  Java versions 17 and 21 are supported.
+  Java versions 17, 21 and 25 are supported.
 
 
 ## Building

Android/android.py

@@ -390,10 +390,10 @@ def setup_testbed():
     if all((TESTBED_DIR / path).exists() for path in paths):
         return
 
-    # The wrapper version isn't important, as any version of the wrapper can
-    # download any version of Gradle. The Gradle version actually used for the
-    # build is specified in testbed/gradle/wrapper/gradle-wrapper.properties.
-    version = "8.9.0"
+    # Any version of the wrapper can run any reasonably close version of Gradle, so this
+    # doesn't need to match the Gradle version used for the build, which is specified in
+    # testbed/gradle/wrapper/gradle-wrapper.properties.
+    version = "9.5.0"
 
     for path in paths:
         out_path = TESTBED_DIR / path

Android/testbed/app/build.gradle.kts

@@ -3,7 +3,6 @@ import kotlin.math.max
 
 plugins {
     id("com.android.application")
-    id("org.jetbrains.kotlin.android")
 }
 
 val ANDROID_DIR = file("../..")
@@ -144,18 +143,10 @@ android {
         path("src/main/c/CMakeLists.txt")
     }
 
-    // Set this property to something nonexistent but non-empty. Otherwise it'll use the
-    // default list, which ignores asset directories beginning with an underscore, and
-    // maybe also other files required by tests.
-    aaptOptions.ignoreAssetsPattern = "android-testbed-dont-ignore-anything"
-
     compileOptions {
         sourceCompatibility = JavaVersion.VERSION_1_8
         targetCompatibility = JavaVersion.VERSION_1_8
     }
-    kotlinOptions {
-        jvmTarget = "1.8"
-    }
 
     testOptions {
         managedDevices {
@@ -192,6 +183,12 @@ android {
             }
         }
     }
+    androidResources {
+        // Set this property to something nonexistent but non-empty. Otherwise it'll use
+        // the default list, which ignores asset directories beginning with an
+        // underscore, and maybe also other files required by tests.
+        ignoreAssetsPattern = "android-testbed-dont-ignore-anything"
+    }
 }
 
 dependencies {

Android/testbed/build.gradle.kts

@@ -1,5 +1,4 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 plugins {
-    id("com.android.application") version "8.10.0" apply false
-    id("org.jetbrains.kotlin.android") version "1.9.22" apply false
+    id("com.android.application") version "9.3.1" apply false
 }

Android/testbed/gradle.properties

@@ -11,16 +11,8 @@ org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
 # This option should only be used with decoupled projects. More details, visit
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
 # org.gradle.parallel=true
-# AndroidX package structure to make it clearer which packages are bundled with the
-# Android operating system, and which are packaged with your app's APK
-# https://developer.android.com/topic/libraries/support-library/androidx-rn
-android.useAndroidX=true
 # Kotlin code style for this project: "official" or "obsolete":
 kotlin.code.style=official
-# Enables namespacing of each library's R class so that its R class includes only the
-# resources declared in the library itself and none from the library's dependencies,
-# thereby reducing the size of the R class for that library
-android.nonTransitiveRClass=true
 
 # By default, the app will be uninstalled after the tests finish (apparently
 # after 10 seconds in case of an unclean shutdown). We disable this, because

Android/testbed/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 #Mon Feb 19 20:29:06 GMT 2024
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.11.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.5.0-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

Doc/library/functools.rst

@@ -389,9 +389,9 @@ The :mod:`!functools` module defines the following functions:
    only one positional argument is provided, but there are two placeholders
    that must be filled in.
 
-   If :func:`!partial` is applied to an existing :func:`!partial` object,
-   :data:`!Placeholder` sentinels of the input object are filled in with
-   new positional arguments.
+   If :func:`!partial` is applied to an existing
+   :ref:`partial object <partial-objects>`, :data:`!Placeholder` sentinels of the
+   input object are filled in with new positional arguments.
    A placeholder can be retained by inserting a new
    :data:`!Placeholder` sentinel to the place held by a previous :data:`!Placeholder`:
 

Lib/logging/__init__.py

@@ -1694,7 +1694,11 @@ def removeHandler(self, hdlr):
         """
         with _lock:
             if hdlr in self.handlers:
-                self.handlers.remove(hdlr)
+                # Replace the list instead of mutating it in place, so that
+                # callHandlers() can iterate it without a lock (gh-79366).
+                handlers = self.handlers.copy()
+                handlers.remove(hdlr)
+                self.handlers = handlers
 
     def hasHandlers(self):
         """

Lib/test/test_logging.py

@@ -799,6 +799,23 @@ def lock_holder_thread_fn():
 
             support.wait_process(pid, exitcode=0)
 
+    def test_remove_handler_while_emitting(self):
+        # Removing a handler while callHandlers() iterates over the handlers
+        # should not cause the following handlers to be skipped (gh-79366).
+        logger = logging.Logger('test_remove_handler_while_emitting')
+        calls = []
+        class RemovingHandler(logging.Handler):
+            def emit(self, record):
+                calls.append('removing')
+                logger.removeHandler(self)
+        class CountingHandler(logging.Handler):
+            def emit(self, record):
+                calls.append('counting')
+        logger.addHandler(RemovingHandler())
+        logger.addHandler(CountingHandler())
+        logger.error('spam')
+        self.assertEqual(calls, ['removing', 'counting'])
+
 
 class BadStream(object):
     def write(self, data):