prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  [BUG] Setuptools 69.0.0 breaks Astropy's setup
  ### setuptools version
  
  setuptools==69.0.0
  
  ### Python version
  
  3.12
  
  ### OS
  
  Ubuntu
  
  ### Additional environment information
  
  _No response_
  
  ### Description
  
  About 15h ago, Astropy's CI started failing to build with
  ```
  ImportError: cannot import name 'newer_group' from 'setuptools.dep_util'
  ```
  This seems to correspond to an [intentional change in setuptools 69](https://setuptools.pypa.io/en/latest/history.html#features).
  Nonetheless, from reading the PR that introduced the change (https://github.com/pypa/setuptools/pull/4069), I'm not sure that this was supposed to break immediately. Was this intended ?
  
  ### Expected behavior
  
  a deprecation warning instead of a hard error ?
  
  ### How to Reproduce
  
  ```shell
  $ python -c "from setuptools.dep_util import newer_group"
  ```
  
  ### Output
  
  ```console
  Traceback (most recent call last):
    File "<string>", line 1, in <module>
  ImportError: cannot import name 'newer_group' from 'setuptools.dep_util' (/private/tmp/venv/lib/python3.12/site-packages/setuptools/dep_util.py)
  ```
  
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `setuptools/dep_util.py`
  Content:
  ```
  1 import warnings
  2 
  3 from ._distutils import _modified
  4 
  5 
  6 def __getattr__(name):
  7     if name not in ['newer_pairwise_group']:
  8         raise AttributeError(name)
  9     warnings.warn(
  10         "dep_util is Deprecated. Use functions from setuptools.modified instead.",
  11         DeprecationWarning,
  12         stacklevel=2,
  13     )
  14     return getattr(_modified, name)
  15
  ```
  --- END FILES ---
  
  Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.
  
  Here is an example:
  
  ```diff
  diff --git a/examples/server_async.py b/examples/server_async.py
  --- a/examples/server_async.py
  +++ b/examples/server_async.py
  @@ -313,4 +313,4 @@
   
   
   if __name__ == "__main__":
  -    asyncio.run(run_async_server("."), debug=True)
  +    asyncio.run(run_async_server(), debug=True)
  diff --git a/examples/server_sync.py b/examples/server_sync.py
  --- a/examples/server_sync.py
  +++ b/examples/server_sync.py
  @@ -313,5 +313,5 @@
   
   
   if __name__ == "__main__":
  -    server = run_sync_server(".")
  +    server = run_sync_server()
       server.shutdown()
  
  ```
  
golden_diff: diff --git a/setuptools/dep_util.py b/setuptools/dep_util.py
  --- a/setuptools/dep_util.py
  +++ b/setuptools/dep_util.py
  @@ -4,7 +4,7 @@
   
   
   def __getattr__(name):
  -    if name not in ['newer_pairwise_group']:
  +    if name not in ['newer_group', 'newer_pairwise_group']:
           raise AttributeError(name)
       warnings.warn(
           "dep_util is Deprecated. Use functions from setuptools.modified instead.",
  
verification_info: {"golden_diff": "diff --git a/setuptools/dep_util.py b/setuptools/dep_util.py\n--- a/setuptools/dep_util.py\n+++ b/setuptools/dep_util.py\n@@ -4,7 +4,7 @@\n \n \n def __getattr__(name):\n-    if name not in ['newer_pairwise_group']:\n+    if name not in ['newer_group', 'newer_pairwise_group']:\n         raise AttributeError(name)\n     warnings.warn(\n         \"dep_util is Deprecated. Use functions from setuptools.modified instead.\",\n", "issue": "[BUG] Setuptools 69.0.0 breaks Astropy's setup\n### setuptools version\n\nsetuptools==69.0.0\n\n### Python version\n\n3.12\n\n### OS\n\nUbuntu\n\n### Additional environment information\n\n_No response_\n\n### Description\n\nAbout 15h ago, Astropy's CI started failing to build with\r\n```\r\nImportError: cannot import name 'newer_group' from 'setuptools.dep_util'\r\n```\r\nThis seems to correspond to an [intentional change in setuptools 69](https://setuptools.pypa.io/en/latest/history.html#features).\r\nNonetheless, from reading the PR that introduced the change (https://github.com/pypa/setuptools/pull/4069), I'm not sure that this was supposed to break immediately. Was this intended ?\n\n### Expected behavior\n\na deprecation warning instead of a hard error ?\n\n### How to Reproduce\n\n```shell\r\n$ python -c \"from setuptools.dep_util import newer_group\"\r\n```\n\n### Output\n\n```console\r\nTraceback (most recent call last):\r\n  File \"<string>\", line 1, in <module>\r\nImportError: cannot import name 'newer_group' from 'setuptools.dep_util' (/private/tmp/venv/lib/python3.12/site-packages/setuptools/dep_util.py)\r\n```\r\n\n", "before_files": [{"content": "import warnings\n\nfrom ._distutils import _modified\n\n\ndef __getattr__(name):\n    if name not in ['newer_pairwise_group']:\n        raise AttributeError(name)\n    warnings.warn(\n        \"dep_util is Deprecated. Use functions from setuptools.modified instead.\",\n        DeprecationWarning,\n        stacklevel=2,\n    )\n    return getattr(_modified, name)\n", "path": "setuptools/dep_util.py"}], "after_files": [{"content": "import warnings\n\nfrom ._distutils import _modified\n\n\ndef __getattr__(name):\n    if name not in ['newer_group', 'newer_pairwise_group']:\n        raise AttributeError(name)\n    warnings.warn(\n        \"dep_util is Deprecated. Use functions from setuptools.modified instead.\",\n        DeprecationWarning,\n        stacklevel=2,\n    )\n    return getattr(_modified, name)\n", "path": "setuptools/dep_util.py"}]}