We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
deprecate IPython.utils.tz
It is not used in IPython itself, and uses functions that are marked for removal in Python

--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `IPython/utils/tz.py`
Content:
```
1 # encoding: utf-8
2 """
3 Timezone utilities
4 
5 Just UTC-awareness right now
6 """
7 
8 #-----------------------------------------------------------------------------
9 #  Copyright (C) 2013 The IPython Development Team
10 #
11 #  Distributed under the terms of the BSD License.  The full license is in
12 #  the file COPYING, distributed as part of this software.
13 #-----------------------------------------------------------------------------
14 
15 #-----------------------------------------------------------------------------
16 # Imports
17 #-----------------------------------------------------------------------------
18 
19 from datetime import tzinfo, timedelta, datetime
20 
21 #-----------------------------------------------------------------------------
22 # Code
23 #-----------------------------------------------------------------------------
24 # constant for zero offset
25 ZERO = timedelta(0)
26 
27 class tzUTC(tzinfo):
28     """tzinfo object for UTC (zero offset)"""
29 
30     def utcoffset(self, d):
31         return ZERO
32 
33     def dst(self, d):
34         return ZERO
35 
36 
37 UTC = tzUTC()  # type: ignore[abstract]
38 
39 
40 def utc_aware(unaware):
41     """decorator for adding UTC tzinfo to datetime's utcfoo methods"""
42     def utc_method(*args, **kwargs):
43         dt = unaware(*args, **kwargs)
44         return dt.replace(tzinfo=UTC)
45     return utc_method
46 
47 utcfromtimestamp = utc_aware(datetime.utcfromtimestamp)
48 utcnow = utc_aware(datetime.utcnow)
49
```
--- 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()

```

diff --git a/IPython/utils/tz.py b/IPython/utils/tz.py
--- a/IPython/utils/tz.py
+++ b/IPython/utils/tz.py
@@ -3,29 +3,56 @@
 Timezone utilities
 
 Just UTC-awareness right now
+
+Deprecated since IPython 8.19.0.
 """
 
-#-----------------------------------------------------------------------------
+# -----------------------------------------------------------------------------
 #  Copyright (C) 2013 The IPython Development Team
 #
 #  Distributed under the terms of the BSD License.  The full license is in
 #  the file COPYING, distributed as part of this software.
-#-----------------------------------------------------------------------------
+# -----------------------------------------------------------------------------
 
-#-----------------------------------------------------------------------------
+# -----------------------------------------------------------------------------
 # Imports
-#-----------------------------------------------------------------------------
+# -----------------------------------------------------------------------------
 
+import warnings
 from datetime import tzinfo, timedelta, datetime
 
-#-----------------------------------------------------------------------------
+# -----------------------------------------------------------------------------
 # Code
-#-----------------------------------------------------------------------------
+# -----------------------------------------------------------------------------
+__all__ = ["tzUTC", "utc_aware", "utcfromtimestamp", "utcnow"]
+
+
 # constant for zero offset
 ZERO = timedelta(0)
 
+
+def __getattr__(name):
+    if name not in __all__:
+        err = f"IPython.utils.tz is deprecated and has no attribute {name}"
+        raise AttributeError(err)
+
+    _warn_deprecated()
+
+    return getattr(name)
+
+
+def _warn_deprecated():
+    msg = "The module `IPython.utils.tz` is deprecated and will be completely removed."
+    warnings.warn(msg, category=DeprecationWarning, stacklevel=2)
+
+
 class tzUTC(tzinfo):
-    """tzinfo object for UTC (zero offset)"""
+    """tzinfo object for UTC (zero offset)
+
+    Deprecated since IPython 8.19.0.
+    """
+
+    _warn_deprecated()
 
     def utcoffset(self, d):
         return ZERO
@@ -38,11 +65,18 @@
 
 
 def utc_aware(unaware):
-    """decorator for adding UTC tzinfo to datetime's utcfoo methods"""
+    """decorator for adding UTC tzinfo to datetime's utcfoo methods
+
+    Deprecated since IPython 8.19.0.
+    """
+
     def utc_method(*args, **kwargs):
+        _warn_deprecated()
         dt = unaware(*args, **kwargs)
         return dt.replace(tzinfo=UTC)
+
     return utc_method
 
+
 utcfromtimestamp = utc_aware(datetime.utcfromtimestamp)
 utcnow = utc_aware(datetime.utcnow)

{"golden_diff": "diff --git a/IPython/utils/tz.py b/IPython/utils/tz.py\n--- a/IPython/utils/tz.py\n+++ b/IPython/utils/tz.py\n@@ -3,29 +3,56 @@\n Timezone utilities\n \n Just UTC-awareness right now\n+\n+Deprecated since IPython 8.19.0.\n \"\"\"\n \n-#-----------------------------------------------------------------------------\n+# -----------------------------------------------------------------------------\n #  Copyright (C) 2013 The IPython Development Team\n #\n #  Distributed under the terms of the BSD License.  The full license is in\n #  the file COPYING, distributed as part of this software.\n-#-----------------------------------------------------------------------------\n+# -----------------------------------------------------------------------------\n \n-#-----------------------------------------------------------------------------\n+# -----------------------------------------------------------------------------\n # Imports\n-#-----------------------------------------------------------------------------\n+# -----------------------------------------------------------------------------\n \n+import warnings\n from datetime import tzinfo, timedelta, datetime\n \n-#-----------------------------------------------------------------------------\n+# -----------------------------------------------------------------------------\n # Code\n-#-----------------------------------------------------------------------------\n+# -----------------------------------------------------------------------------\n+__all__ = [\"tzUTC\", \"utc_aware\", \"utcfromtimestamp\", \"utcnow\"]\n+\n+\n # constant for zero offset\n ZERO = timedelta(0)\n \n+\n+def __getattr__(name):\n+    if name not in __all__:\n+        err = f\"IPython.utils.tz is deprecated and has no attribute {name}\"\n+        raise AttributeError(err)\n+\n+    _warn_deprecated()\n+\n+    return getattr(name)\n+\n+\n+def _warn_deprecated():\n+    msg = \"The module `IPython.utils.tz` is deprecated and will be completely removed.\"\n+    warnings.warn(msg, category=DeprecationWarning, stacklevel=2)\n+\n+\n class tzUTC(tzinfo):\n-    \"\"\"tzinfo object for UTC (zero offset)\"\"\"\n+    \"\"\"tzinfo object for UTC (zero offset)\n+\n+    Deprecated since IPython 8.19.0.\n+    \"\"\"\n+\n+    _warn_deprecated()\n \n     def utcoffset(self, d):\n         return ZERO\n@@ -38,11 +65,18 @@\n \n \n def utc_aware(unaware):\n-    \"\"\"decorator for adding UTC tzinfo to datetime's utcfoo methods\"\"\"\n+    \"\"\"decorator for adding UTC tzinfo to datetime's utcfoo methods\n+\n+    Deprecated since IPython 8.19.0.\n+    \"\"\"\n+\n     def utc_method(*args, **kwargs):\n+        _warn_deprecated()\n         dt = unaware(*args, **kwargs)\n         return dt.replace(tzinfo=UTC)\n+\n     return utc_method\n \n+\n utcfromtimestamp = utc_aware(datetime.utcfromtimestamp)\n utcnow = utc_aware(datetime.utcnow)\n", "issue": "deprecate IPython.utils.tz\nIt is not used in IPython itself, and uses functions that are marked for removal in Python\n", "before_files": [{"content": "# encoding: utf-8\n\"\"\"\nTimezone utilities\n\nJust UTC-awareness right now\n\"\"\"\n\n#-----------------------------------------------------------------------------\n#  Copyright (C) 2013 The IPython Development Team\n#\n#  Distributed under the terms of the BSD License.  The full license is in\n#  the file COPYING, distributed as part of this software.\n#-----------------------------------------------------------------------------\n\n#-----------------------------------------------------------------------------\n# Imports\n#-----------------------------------------------------------------------------\n\nfrom datetime import tzinfo, timedelta, datetime\n\n#-----------------------------------------------------------------------------\n# Code\n#-----------------------------------------------------------------------------\n# constant for zero offset\nZERO = timedelta(0)\n\nclass tzUTC(tzinfo):\n    \"\"\"tzinfo object for UTC (zero offset)\"\"\"\n\n    def utcoffset(self, d):\n        return ZERO\n\n    def dst(self, d):\n        return ZERO\n\n\nUTC = tzUTC()  # type: ignore[abstract]\n\n\ndef utc_aware(unaware):\n    \"\"\"decorator for adding UTC tzinfo to datetime's utcfoo methods\"\"\"\n    def utc_method(*args, **kwargs):\n        dt = unaware(*args, **kwargs)\n        return dt.replace(tzinfo=UTC)\n    return utc_method\n\nutcfromtimestamp = utc_aware(datetime.utcfromtimestamp)\nutcnow = utc_aware(datetime.utcnow)\n", "path": "IPython/utils/tz.py"}], "after_files": [{"content": "# encoding: utf-8\n\"\"\"\nTimezone utilities\n\nJust UTC-awareness right now\n\nDeprecated since IPython 8.19.0.\n\"\"\"\n\n# -----------------------------------------------------------------------------\n#  Copyright (C) 2013 The IPython Development Team\n#\n#  Distributed under the terms of the BSD License.  The full license is in\n#  the file COPYING, distributed as part of this software.\n# -----------------------------------------------------------------------------\n\n# -----------------------------------------------------------------------------\n# Imports\n# -----------------------------------------------------------------------------\n\nimport warnings\nfrom datetime import tzinfo, timedelta, datetime\n\n# -----------------------------------------------------------------------------\n# Code\n# -----------------------------------------------------------------------------\n__all__ = [\"tzUTC\", \"utc_aware\", \"utcfromtimestamp\", \"utcnow\"]\n\n\n# constant for zero offset\nZERO = timedelta(0)\n\n\ndef __getattr__(name):\n    if name not in __all__:\n        err = f\"IPython.utils.tz is deprecated and has no attribute {name}\"\n        raise AttributeError(err)\n\n    _warn_deprecated()\n\n    return getattr(name)\n\n\ndef _warn_deprecated():\n    msg = \"The module `IPython.utils.tz` is deprecated and will be completely removed.\"\n    warnings.warn(msg, category=DeprecationWarning, stacklevel=2)\n\n\nclass tzUTC(tzinfo):\n    \"\"\"tzinfo object for UTC (zero offset)\n\n    Deprecated since IPython 8.19.0.\n    \"\"\"\n\n    _warn_deprecated()\n\n    def utcoffset(self, d):\n        return ZERO\n\n    def dst(self, d):\n        return ZERO\n\n\nUTC = tzUTC()  # type: ignore[abstract]\n\n\ndef utc_aware(unaware):\n    \"\"\"decorator for adding UTC tzinfo to datetime's utcfoo methods\n\n    Deprecated since IPython 8.19.0.\n    \"\"\"\n\n    def utc_method(*args, **kwargs):\n        _warn_deprecated()\n        dt = unaware(*args, **kwargs)\n        return dt.replace(tzinfo=UTC)\n\n    return utc_method\n\n\nutcfromtimestamp = utc_aware(datetime.utcfromtimestamp)\nutcnow = utc_aware(datetime.utcnow)\n", "path": "IPython/utils/tz.py"}]}