We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Cleanup extra logic that handle python <=3.3
https://github.com/ipython/ipython/pull/10833 dis most of that but there seem to be some logic still handling python 3.3

https://github.com/ipython/ipython/blob/dda523895e5a9c4185de763a25f038dc6fff76b8/IPython/core/extensions.py#L17-L21

https://github.com/ipython/ipython/blob/dda523895e5a9c4185de763a25f038dc6fff76b8/IPython/utils/openpy.py#L117-L121

https://github.com/ipython/ipython/blob/dda523895e5a9c4185de763a25f038dc6fff76b8/IPython/utils/text.py#L512-L519

(3.4.2+)

https://github.com/ipython/ipython/blob/dda523895e5a9c4185de763a25f038dc6fff76b8/IPython/core/magics/execution.py#L145-L149

There are possibly other places, this should be relatively easy to fix for a new contributor.

Each of these removal can be a separate PR.

--- 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/core/extensions.py`
Content:
```
1 # encoding: utf-8
2 """A class for managing IPython extensions."""
3 
4 # Copyright (c) IPython Development Team.
5 # Distributed under the terms of the Modified BSD License.
6 
7 import os
8 import os.path
9 import sys
10 from importlib import import_module
11 
12 from traitlets.config.configurable import Configurable
13 from IPython.utils.path import ensure_dir_exists, compress_user
14 from IPython.utils.decorators import undoc
15 from traitlets import Instance
16 
17 try:
18     from importlib import reload
19 except ImportError :
20     ## deprecated since 3.4
21     from imp import reload
22 
23 #-----------------------------------------------------------------------------
24 # Main class
25 #-----------------------------------------------------------------------------
26 
27 class ExtensionManager(Configurable):
28     """A class to manage IPython extensions.
29 
30     An IPython extension is an importable Python module that has
31     a function with the signature::
32 
33         def load_ipython_extension(ipython):
34             # Do things with ipython
35 
36     This function is called after your extension is imported and the
37     currently active :class:`InteractiveShell` instance is passed as
38     the only argument.  You can do anything you want with IPython at
39     that point, including defining new magic and aliases, adding new
40     components, etc.
41     
42     You can also optionally define an :func:`unload_ipython_extension(ipython)`
43     function, which will be called if the user unloads or reloads the extension.
44     The extension manager will only call :func:`load_ipython_extension` again
45     if the extension is reloaded.
46 
47     You can put your extension modules anywhere you want, as long as
48     they can be imported by Python's standard import mechanism.  However,
49     to make it easy to write extensions, you can also put your extensions
50     in ``os.path.join(self.ipython_dir, 'extensions')``.  This directory
51     is added to ``sys.path`` automatically.
52     """
53 
54     shell = Instance('IPython.core.interactiveshell.InteractiveShellABC', allow_none=True)
55 
56     def __init__(self, shell=None, **kwargs):
57         super(ExtensionManager, self).__init__(shell=shell, **kwargs)
58         self.shell.observe(
59             self._on_ipython_dir_changed, names=('ipython_dir',)
60         )
61         self.loaded = set()
62 
63     @property
64     def ipython_extension_dir(self):
65         return os.path.join(self.shell.ipython_dir, u'extensions')
66 
67     def _on_ipython_dir_changed(self, change):
68         ensure_dir_exists(self.ipython_extension_dir)
69 
70     def load_extension(self, module_str):
71         """Load an IPython extension by its module name.
72 
73         Returns the string "already loaded" if the extension is already loaded,
74         "no load function" if the module doesn't have a load_ipython_extension
75         function, or None if it succeeded.
76         """
77         if module_str in self.loaded:
78             return "already loaded"
79 
80         from IPython.utils.syspathcontext import prepended_to_syspath
81 
82         with self.shell.builtin_trap:
83             if module_str not in sys.modules:
84                 with prepended_to_syspath(self.ipython_extension_dir):
85                     mod = import_module(module_str)
86                     if mod.__file__.startswith(self.ipython_extension_dir):
87                         print(("Loading extensions from {dir} is deprecated. "
88                                "We recommend managing extensions like any "
89                                "other Python packages, in site-packages.").format(
90                               dir=compress_user(self.ipython_extension_dir)))
91             mod = sys.modules[module_str]
92             if self._call_load_ipython_extension(mod):
93                 self.loaded.add(module_str)
94             else:
95                 return "no load function"
96 
97     def unload_extension(self, module_str):
98         """Unload an IPython extension by its module name.
99 
100         This function looks up the extension's name in ``sys.modules`` and
101         simply calls ``mod.unload_ipython_extension(self)``.
102         
103         Returns the string "no unload function" if the extension doesn't define
104         a function to unload itself, "not loaded" if the extension isn't loaded,
105         otherwise None.
106         """
107         if module_str not in self.loaded:
108             return "not loaded"
109         
110         if module_str in sys.modules:
111             mod = sys.modules[module_str]
112             if self._call_unload_ipython_extension(mod):
113                 self.loaded.discard(module_str)
114             else:
115                 return "no unload function"
116 
117     def reload_extension(self, module_str):
118         """Reload an IPython extension by calling reload.
119 
120         If the module has not been loaded before,
121         :meth:`InteractiveShell.load_extension` is called. Otherwise
122         :func:`reload` is called and then the :func:`load_ipython_extension`
123         function of the module, if it exists is called.
124         """
125         from IPython.utils.syspathcontext import prepended_to_syspath
126 
127         if (module_str in self.loaded) and (module_str in sys.modules):
128             self.unload_extension(module_str)
129             mod = sys.modules[module_str]
130             with prepended_to_syspath(self.ipython_extension_dir):
131                 reload(mod)
132             if self._call_load_ipython_extension(mod):
133                 self.loaded.add(module_str)
134         else:
135             self.load_extension(module_str)
136 
137     def _call_load_ipython_extension(self, mod):
138         if hasattr(mod, 'load_ipython_extension'):
139             mod.load_ipython_extension(self.shell)
140             return True
141 
142     def _call_unload_ipython_extension(self, mod):
143         if hasattr(mod, 'unload_ipython_extension'):
144             mod.unload_ipython_extension(self.shell)
145             return True
146 
147     @undoc
148     def install_extension(self, url, filename=None):
149         """
150         Deprecated.
151         """
152         # Ensure the extension directory exists
153         raise DeprecationWarning(
154             '`install_extension` and the `install_ext` magic have been deprecated since IPython 4.0'
155             'Use pip or other package managers to manage ipython extensions.')
156
```
--- 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/core/extensions.py b/IPython/core/extensions.py
--- a/IPython/core/extensions.py
+++ b/IPython/core/extensions.py
@@ -7,18 +7,13 @@
 import os
 import os.path
 import sys
-from importlib import import_module
+from importlib import import_module, reload
 
 from traitlets.config.configurable import Configurable
 from IPython.utils.path import ensure_dir_exists, compress_user
 from IPython.utils.decorators import undoc
 from traitlets import Instance
 
-try:
-    from importlib import reload
-except ImportError :
-    ## deprecated since 3.4
-    from imp import reload
 
 #-----------------------------------------------------------------------------
 # Main class

{"golden_diff": "diff --git a/IPython/core/extensions.py b/IPython/core/extensions.py\n--- a/IPython/core/extensions.py\n+++ b/IPython/core/extensions.py\n@@ -7,18 +7,13 @@\n import os\n import os.path\n import sys\n-from importlib import import_module\n+from importlib import import_module, reload\n \n from traitlets.config.configurable import Configurable\n from IPython.utils.path import ensure_dir_exists, compress_user\n from IPython.utils.decorators import undoc\n from traitlets import Instance\n \n-try:\n-    from importlib import reload\n-except ImportError :\n-    ## deprecated since 3.4\n-    from imp import reload\n \n #-----------------------------------------------------------------------------\n # Main class\n", "issue": "Cleanup extra logic that handle python <=3.3\nhttps://github.com/ipython/ipython/pull/10833 dis most of that but there seem to be some logic still handling python 3.3\r\n\r\nhttps://github.com/ipython/ipython/blob/dda523895e5a9c4185de763a25f038dc6fff76b8/IPython/core/extensions.py#L17-L21\r\n\r\nhttps://github.com/ipython/ipython/blob/dda523895e5a9c4185de763a25f038dc6fff76b8/IPython/utils/openpy.py#L117-L121\r\n\r\nhttps://github.com/ipython/ipython/blob/dda523895e5a9c4185de763a25f038dc6fff76b8/IPython/utils/text.py#L512-L519\r\n\r\n(3.4.2+)\r\n\r\nhttps://github.com/ipython/ipython/blob/dda523895e5a9c4185de763a25f038dc6fff76b8/IPython/core/magics/execution.py#L145-L149\r\n\r\nThere are possibly other places, this should be relatively easy to fix for a new contributor.\r\n\r\nEach of these removal can be a separate PR.\n", "before_files": [{"content": "# encoding: utf-8\n\"\"\"A class for managing IPython extensions.\"\"\"\n\n# Copyright (c) IPython Development Team.\n# Distributed under the terms of the Modified BSD License.\n\nimport os\nimport os.path\nimport sys\nfrom importlib import import_module\n\nfrom traitlets.config.configurable import Configurable\nfrom IPython.utils.path import ensure_dir_exists, compress_user\nfrom IPython.utils.decorators import undoc\nfrom traitlets import Instance\n\ntry:\n    from importlib import reload\nexcept ImportError :\n    ## deprecated since 3.4\n    from imp import reload\n\n#-----------------------------------------------------------------------------\n# Main class\n#-----------------------------------------------------------------------------\n\nclass ExtensionManager(Configurable):\n    \"\"\"A class to manage IPython extensions.\n\n    An IPython extension is an importable Python module that has\n    a function with the signature::\n\n        def load_ipython_extension(ipython):\n            # Do things with ipython\n\n    This function is called after your extension is imported and the\n    currently active :class:`InteractiveShell` instance is passed as\n    the only argument.  You can do anything you want with IPython at\n    that point, including defining new magic and aliases, adding new\n    components, etc.\n    \n    You can also optionally define an :func:`unload_ipython_extension(ipython)`\n    function, which will be called if the user unloads or reloads the extension.\n    The extension manager will only call :func:`load_ipython_extension` again\n    if the extension is reloaded.\n\n    You can put your extension modules anywhere you want, as long as\n    they can be imported by Python's standard import mechanism.  However,\n    to make it easy to write extensions, you can also put your extensions\n    in ``os.path.join(self.ipython_dir, 'extensions')``.  This directory\n    is added to ``sys.path`` automatically.\n    \"\"\"\n\n    shell = Instance('IPython.core.interactiveshell.InteractiveShellABC', allow_none=True)\n\n    def __init__(self, shell=None, **kwargs):\n        super(ExtensionManager, self).__init__(shell=shell, **kwargs)\n        self.shell.observe(\n            self._on_ipython_dir_changed, names=('ipython_dir',)\n        )\n        self.loaded = set()\n\n    @property\n    def ipython_extension_dir(self):\n        return os.path.join(self.shell.ipython_dir, u'extensions')\n\n    def _on_ipython_dir_changed(self, change):\n        ensure_dir_exists(self.ipython_extension_dir)\n\n    def load_extension(self, module_str):\n        \"\"\"Load an IPython extension by its module name.\n\n        Returns the string \"already loaded\" if the extension is already loaded,\n        \"no load function\" if the module doesn't have a load_ipython_extension\n        function, or None if it succeeded.\n        \"\"\"\n        if module_str in self.loaded:\n            return \"already loaded\"\n\n        from IPython.utils.syspathcontext import prepended_to_syspath\n\n        with self.shell.builtin_trap:\n            if module_str not in sys.modules:\n                with prepended_to_syspath(self.ipython_extension_dir):\n                    mod = import_module(module_str)\n                    if mod.__file__.startswith(self.ipython_extension_dir):\n                        print((\"Loading extensions from {dir} is deprecated. \"\n                               \"We recommend managing extensions like any \"\n                               \"other Python packages, in site-packages.\").format(\n                              dir=compress_user(self.ipython_extension_dir)))\n            mod = sys.modules[module_str]\n            if self._call_load_ipython_extension(mod):\n                self.loaded.add(module_str)\n            else:\n                return \"no load function\"\n\n    def unload_extension(self, module_str):\n        \"\"\"Unload an IPython extension by its module name.\n\n        This function looks up the extension's name in ``sys.modules`` and\n        simply calls ``mod.unload_ipython_extension(self)``.\n        \n        Returns the string \"no unload function\" if the extension doesn't define\n        a function to unload itself, \"not loaded\" if the extension isn't loaded,\n        otherwise None.\n        \"\"\"\n        if module_str not in self.loaded:\n            return \"not loaded\"\n        \n        if module_str in sys.modules:\n            mod = sys.modules[module_str]\n            if self._call_unload_ipython_extension(mod):\n                self.loaded.discard(module_str)\n            else:\n                return \"no unload function\"\n\n    def reload_extension(self, module_str):\n        \"\"\"Reload an IPython extension by calling reload.\n\n        If the module has not been loaded before,\n        :meth:`InteractiveShell.load_extension` is called. Otherwise\n        :func:`reload` is called and then the :func:`load_ipython_extension`\n        function of the module, if it exists is called.\n        \"\"\"\n        from IPython.utils.syspathcontext import prepended_to_syspath\n\n        if (module_str in self.loaded) and (module_str in sys.modules):\n            self.unload_extension(module_str)\n            mod = sys.modules[module_str]\n            with prepended_to_syspath(self.ipython_extension_dir):\n                reload(mod)\n            if self._call_load_ipython_extension(mod):\n                self.loaded.add(module_str)\n        else:\n            self.load_extension(module_str)\n\n    def _call_load_ipython_extension(self, mod):\n        if hasattr(mod, 'load_ipython_extension'):\n            mod.load_ipython_extension(self.shell)\n            return True\n\n    def _call_unload_ipython_extension(self, mod):\n        if hasattr(mod, 'unload_ipython_extension'):\n            mod.unload_ipython_extension(self.shell)\n            return True\n\n    @undoc\n    def install_extension(self, url, filename=None):\n        \"\"\"\n        Deprecated.\n        \"\"\"\n        # Ensure the extension directory exists\n        raise DeprecationWarning(\n            '`install_extension` and the `install_ext` magic have been deprecated since IPython 4.0'\n            'Use pip or other package managers to manage ipython extensions.')\n", "path": "IPython/core/extensions.py"}], "after_files": [{"content": "# encoding: utf-8\n\"\"\"A class for managing IPython extensions.\"\"\"\n\n# Copyright (c) IPython Development Team.\n# Distributed under the terms of the Modified BSD License.\n\nimport os\nimport os.path\nimport sys\nfrom importlib import import_module, reload\n\nfrom traitlets.config.configurable import Configurable\nfrom IPython.utils.path import ensure_dir_exists, compress_user\nfrom IPython.utils.decorators import undoc\nfrom traitlets import Instance\n\n\n#-----------------------------------------------------------------------------\n# Main class\n#-----------------------------------------------------------------------------\n\nclass ExtensionManager(Configurable):\n    \"\"\"A class to manage IPython extensions.\n\n    An IPython extension is an importable Python module that has\n    a function with the signature::\n\n        def load_ipython_extension(ipython):\n            # Do things with ipython\n\n    This function is called after your extension is imported and the\n    currently active :class:`InteractiveShell` instance is passed as\n    the only argument.  You can do anything you want with IPython at\n    that point, including defining new magic and aliases, adding new\n    components, etc.\n    \n    You can also optionally define an :func:`unload_ipython_extension(ipython)`\n    function, which will be called if the user unloads or reloads the extension.\n    The extension manager will only call :func:`load_ipython_extension` again\n    if the extension is reloaded.\n\n    You can put your extension modules anywhere you want, as long as\n    they can be imported by Python's standard import mechanism.  However,\n    to make it easy to write extensions, you can also put your extensions\n    in ``os.path.join(self.ipython_dir, 'extensions')``.  This directory\n    is added to ``sys.path`` automatically.\n    \"\"\"\n\n    shell = Instance('IPython.core.interactiveshell.InteractiveShellABC', allow_none=True)\n\n    def __init__(self, shell=None, **kwargs):\n        super(ExtensionManager, self).__init__(shell=shell, **kwargs)\n        self.shell.observe(\n            self._on_ipython_dir_changed, names=('ipython_dir',)\n        )\n        self.loaded = set()\n\n    @property\n    def ipython_extension_dir(self):\n        return os.path.join(self.shell.ipython_dir, u'extensions')\n\n    def _on_ipython_dir_changed(self, change):\n        ensure_dir_exists(self.ipython_extension_dir)\n\n    def load_extension(self, module_str):\n        \"\"\"Load an IPython extension by its module name.\n\n        Returns the string \"already loaded\" if the extension is already loaded,\n        \"no load function\" if the module doesn't have a load_ipython_extension\n        function, or None if it succeeded.\n        \"\"\"\n        if module_str in self.loaded:\n            return \"already loaded\"\n\n        from IPython.utils.syspathcontext import prepended_to_syspath\n\n        with self.shell.builtin_trap:\n            if module_str not in sys.modules:\n                with prepended_to_syspath(self.ipython_extension_dir):\n                    mod = import_module(module_str)\n                    if mod.__file__.startswith(self.ipython_extension_dir):\n                        print((\"Loading extensions from {dir} is deprecated. \"\n                               \"We recommend managing extensions like any \"\n                               \"other Python packages, in site-packages.\").format(\n                              dir=compress_user(self.ipython_extension_dir)))\n            mod = sys.modules[module_str]\n            if self._call_load_ipython_extension(mod):\n                self.loaded.add(module_str)\n            else:\n                return \"no load function\"\n\n    def unload_extension(self, module_str):\n        \"\"\"Unload an IPython extension by its module name.\n\n        This function looks up the extension's name in ``sys.modules`` and\n        simply calls ``mod.unload_ipython_extension(self)``.\n        \n        Returns the string \"no unload function\" if the extension doesn't define\n        a function to unload itself, \"not loaded\" if the extension isn't loaded,\n        otherwise None.\n        \"\"\"\n        if module_str not in self.loaded:\n            return \"not loaded\"\n        \n        if module_str in sys.modules:\n            mod = sys.modules[module_str]\n            if self._call_unload_ipython_extension(mod):\n                self.loaded.discard(module_str)\n            else:\n                return \"no unload function\"\n\n    def reload_extension(self, module_str):\n        \"\"\"Reload an IPython extension by calling reload.\n\n        If the module has not been loaded before,\n        :meth:`InteractiveShell.load_extension` is called. Otherwise\n        :func:`reload` is called and then the :func:`load_ipython_extension`\n        function of the module, if it exists is called.\n        \"\"\"\n        from IPython.utils.syspathcontext import prepended_to_syspath\n\n        if (module_str in self.loaded) and (module_str in sys.modules):\n            self.unload_extension(module_str)\n            mod = sys.modules[module_str]\n            with prepended_to_syspath(self.ipython_extension_dir):\n                reload(mod)\n            if self._call_load_ipython_extension(mod):\n                self.loaded.add(module_str)\n        else:\n            self.load_extension(module_str)\n\n    def _call_load_ipython_extension(self, mod):\n        if hasattr(mod, 'load_ipython_extension'):\n            mod.load_ipython_extension(self.shell)\n            return True\n\n    def _call_unload_ipython_extension(self, mod):\n        if hasattr(mod, 'unload_ipython_extension'):\n            mod.unload_ipython_extension(self.shell)\n            return True\n\n    @undoc\n    def install_extension(self, url, filename=None):\n        \"\"\"\n        Deprecated.\n        \"\"\"\n        # Ensure the extension directory exists\n        raise DeprecationWarning(\n            '`install_extension` and the `install_ext` magic have been deprecated since IPython 4.0'\n            'Use pip or other package managers to manage ipython extensions.')\n", "path": "IPython/core/extensions.py"}]}