Removed deprecated jax.config methods and jax.config.config

Reverts dcc65e621ea3a68fdc79fa9f2c995743a7b3faf7

PiperOrigin-RevId: 608676645

.github/workflows/ci-build.yaml

@@ -140,7 +140,7 @@ jobs:
         PY_COLORS: 1
       run: |
         pytest -n auto --tb=short docs
-        pytest -n auto --tb=short --doctest-modules jax --ignore=jax/experimental/jax2tf --ignore=jax/_src/lib/mlir --ignore=jax/_src/lib/triton.py --ignore=jax/interpreters/mlir.py --ignore=jax/_src/iree.py --ignore=jax/experimental/array_serialization --ignore=jax/collect_profile.py --ignore=jax/_src/tpu_custom_call.py --ignore=jax/experimental/mosaic --ignore=jax/experimental/pallas --ignore=jax/_src/pallas
+        pytest -n auto --tb=short --doctest-modules jax --ignore=jax/config.py --ignore=jax/experimental/jax2tf --ignore=jax/_src/lib/mlir --ignore=jax/_src/lib/triton.py --ignore=jax/interpreters/mlir.py --ignore=jax/_src/iree.py --ignore=jax/experimental/array_serialization --ignore=jax/collect_profile.py --ignore=jax/_src/tpu_custom_call.py --ignore=jax/experimental/mosaic --ignore=jax/experimental/pallas --ignore=jax/_src/pallas
 
 
   documentation_render:

CHANGELOG.md

@@ -25,6 +25,14 @@ Remember to align the itemized text with the first line of an item within a list
   * Conversion of a non-scalar array to a Python scalar now raises an error, regardless
     of the size of the array. Previously a deprecation warning was raised in the case of
     non-scalar arrays of size 1. This follows a similar deprecation in NumPy.
+  * The previously deprecated configuration APIs have been removed
+    following a standard 3 months deprecation cycle (see {ref}`api-compatibility`).
+    These include
+    * the `jax.config.config` object and
+    * the `define_*_state` and `DEFINE_*` methods of {data}`jax.config`.
+  * Importing the `jax.config` submodule via `import jax.config` is deprecated.
+    To configure JAX use `import jax` and then reference the config object
+    via `jax.config`.
 
 ## jaxlib 0.4.25
 

jax/__init__.py

@@ -33,12 +33,6 @@ except Exception as exc:
   del _warn
 del _cloud_tpu_init
 
-# Confusingly there are two things named "config": the module and the class.
-# We want the exported object to be the class, so we first import the module
-# to make sure a later import doesn't overwrite the class.
-from jax import config as _config_module
-del _config_module
-
 # Force early import, allowing use of `jax.core` after importing `jax`.
 import jax.core as _core
 del _core

jax/_src/config.py

@@ -23,7 +23,6 @@ import os
 import sys
 import threading
 from typing import Any, Callable, Generic, NamedTuple, NoReturn, TypeVar, cast
-import warnings
 
 from jax._src import lib
 from jax._src.lib import jax_jit
@@ -70,23 +69,6 @@ UPGRADE_BOOL_HELP = (
 UPGRADE_BOOL_EXTRA_DESC = " (transient)"
 
 
-_CONFIG_DEPRECATIONS = {
-    # Added October 26, 2023:
-    "check_exists",
-    "DEFINE_bool",
-    "DEFINE_integer",
-    "DEFINE_float",
-    "DEFINE_string",
-    "DEFINE_enum",
-    "define_bool_state",
-    "define_enum_state",
-    "define_int_state",
-    "define_float_state",
-    "define_string_state",
-    "define_string_or_object_state",
-}
-
-
 class Config:
   _HAS_DYNAMIC_ATTRIBUTES = True
 
@@ -100,20 +82,6 @@ class Config:
     self.use_absl = False
     self._contextmanager_flags = set()
 
-  def __getattr__(self, name):
-    fn = None
-    if name in _CONFIG_DEPRECATIONS:
-      fn = globals().get(name, None)
-    if fn is None:
-      raise AttributeError(
-          f"'{type(self).__name__!r} object has no attribute {name!r}")
-    message = (
-        f"jax.config.{name} is deprecated. Please use other libraries "
-        "for configuration instead."
-    )
-    warnings.warn(message, DeprecationWarning, stacklevel=2)
-    return fn
-
   def update(self, name, val):
     if name not in self._value_holders:
       raise AttributeError(f"Unrecognized config option: {name}")

jax/config.py

@@ -12,23 +12,14 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from jax._src.config import config as _deprecated_config  # noqa: F401
+import warnings
 
-# Deprecations
-
-_deprecations = {
-    # Added October 27, 2023
-    "config": (
-        "Accessing jax.config via the jax.config submodule is deprecated.",
-        _deprecated_config),
-}
-
-import typing
-if typing.TYPE_CHECKING:
-  config = _deprecated_config
-else:
-  from jax._src.deprecations import deprecation_getattr as _deprecation_getattr
-  __getattr__ = _deprecation_getattr(__name__, _deprecations)
-  del _deprecation_getattr
-del typing
-del _deprecated_config
+# Added February 16, 2024.
+warnings.warn(
+    "Importing the jax.config submodule via `import jax.config` is deprecated."
+    " To configure JAX use `import jax` and then reference the config object"
+    " via `jax.config`.",
+    DeprecationWarning,
+    stacklevel=2,
+)
+del warnings

tests/BUILD

@@ -73,14 +73,6 @@ jax_test(
     },
 )
 
-py_test(
-    name = "config_test",
-    srcs = ["config_test.py"],
-    deps = [
-        "//jax",
-    ],
-)
-
 jax_test(
     name = "core_test",
     srcs = ["core_test.py"],

tests/config_test.py

@@ -1,36 +0,0 @@
-# Copyright 2023 The JAX Authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     https://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-import unittest
-
-from jax import config
-
-class ConfigTest(unittest.TestCase):
-  def test_deprecations(self):
-    for name in ["DEFINE_bool", "define_bool_state"]:
-      with (
-          self.subTest(name),
-          self.assertWarnsRegex(
-              DeprecationWarning,
-              "other libraries for configuration"),
-      ):
-        getattr(config, name)
-
-  def test_missing_attribute(self):
-    with self.assertRaises(AttributeError):
-      config.missing_attribute
-
-
-if __name__ == '__main__':
-  unittest.main()