We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
REG: fail to configure yt from the command line if $HOME/.config/ doesn't exist
### Bug report

**Bug summary**

This was discovered downstream thanks to yt_astro_analysis' CI

**Code for reproduction**
```shell
yt config set --global yt suppress_stream_logging True
```

**Actual outcome**

```python-traceback
Traceback (most recent call last):
  File "/Users/robcleme/dev/yt-project/yt/yt/utilities/configure.py", line 106, in write
    file_handler.write(config_as_str)
AttributeError: 'str' object has no attribute 'write'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/robcleme/.pyenv/versions/38-yt-dev/bin/yt", line 33, in <module>
    sys.exit(load_entry_point('yt', 'console_scripts', 'yt')())
  File "/Users/robcleme/dev/yt-project/yt/yt/utilities/command_line.py", line 1632, in run_main
    args.func(args)
  File "/Users/robcleme/dev/yt-project/yt/yt/utilities/command_line.py", line 224, in run
    self(args)
  File "/Users/robcleme/dev/yt-project/yt/yt/utilities/command_line.py", line 1418, in __call__
    set_config(args.section, args.option, args.value, self.config_file)
  File "/Users/robcleme/dev/yt-project/yt/yt/utilities/configure.py", line 173, in set_config
    write_config(config_file)
  File "/Users/robcleme/dev/yt-project/yt/yt/utilities/configure.py", line 177, in write_config
    CONFIG.write(config_file)
  File "/Users/robcleme/dev/yt-project/yt/yt/utilities/configure.py", line 109, in write
    with open(file_handler, mode="w") as fh:
FileNotFoundError: [Errno 2] No such file or directory: '/Users/robcleme/.config/yt/yt.toml'
```

**Expected outcome**

The configuration dir should be created.
I bet this regression is caused by #3626

--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `yt/utilities/configure.py`
Content:
```
1 import os
2 import sys
3 import warnings
4 from typing import Callable, List
5 
6 import tomli_w
7 from more_itertools import always_iterable
8 
9 from yt.utilities.configuration_tree import ConfigLeaf, ConfigNode
10 
11 if sys.version_info >= (3, 11):
12     import tomllib
13 else:
14     import tomli as tomllib
15 
16 configuration_callbacks: List[Callable[["YTConfig"], None]] = []
17 
18 
19 def config_dir():
20     config_root = os.environ.get(
21         "XDG_CONFIG_HOME", os.path.join(os.path.expanduser("~"), ".config")
22     )
23     conf_dir = os.path.join(config_root, "yt")
24     return conf_dir
25 
26 
27 class YTConfig:
28     def __init__(self, defaults=None):
29         if defaults is None:
30             defaults = {}
31         self.config_root = ConfigNode(None)
32 
33     def get(self, section, *keys, callback=None):
34         node_or_leaf = self.config_root.get(section, *keys)
35         if isinstance(node_or_leaf, ConfigLeaf):
36             if callback is not None:
37                 return callback(node_or_leaf)
38             return node_or_leaf.value
39         return node_or_leaf
40 
41     def get_most_specific(self, section, *keys, **kwargs):
42         use_fallback = "fallback" in kwargs
43         fallback = kwargs.pop("fallback", None)
44         try:
45             return self.config_root.get_deepest_leaf(section, *keys)
46         except KeyError as err:
47             if use_fallback:
48                 return fallback
49             else:
50                 raise err
51 
52     def update(self, new_values, metadata=None):
53         if metadata is None:
54             metadata = {}
55         self.config_root.update(new_values, metadata)
56 
57     def has_section(self, section):
58         try:
59             self.config_root.get_child(section)
60             return True
61         except KeyError:
62             return False
63 
64     def add_section(self, section):
65         self.config_root.add_child(section)
66 
67     def remove_section(self, section):
68         if self.has_section(section):
69             self.config_root.remove_child(section)
70             return True
71         else:
72             return False
73 
74     def set(self, *args, metadata=None):
75         section, *keys, value = args
76         if metadata is None:
77             metadata = {"source": "runtime"}
78         self.config_root.upsert_from_list(
79             [section] + list(keys), value, extra_data=metadata
80         )
81 
82     def remove(self, *args):
83         self.config_root.pop_leaf(args)
84 
85     def read(self, file_names):
86         file_names_read = []
87         for fname in always_iterable(file_names):
88             if not os.path.exists(fname):
89                 continue
90             metadata = {"source": f"file: {fname}"}
91             try:
92                 with open(fname, "rb") as fh:
93                     data = tomllib.load(fh)
94             except tomllib.TOMLDecodeError as exc:
95                 warnings.warn(
96                     f"Could not load configuration file {fname} (invalid TOML: {exc})"
97                 )
98             else:
99                 self.update(data, metadata=metadata)
100                 file_names_read.append(fname)
101 
102         return file_names_read
103 
104     def write(self, file_handler):
105         value = self.config_root.as_dict()
106         config_as_str = tomli_w.dumps(value)
107 
108         try:
109             # Assuming file_handler has a write attribute
110             file_handler.write(config_as_str)
111         except AttributeError:
112             # Otherwise we expect a path to a file
113             with open(file_handler, mode="w") as fh:
114                 fh.write(config_as_str)
115 
116     @staticmethod
117     def get_global_config_file():
118         return os.path.join(config_dir(), "yt.toml")
119 
120     @staticmethod
121     def get_local_config_file():
122         return os.path.join(os.path.abspath(os.curdir), "yt.toml")
123 
124     def __setitem__(self, args, value):
125         section, *keys = always_iterable(args)
126         self.set(section, *keys, value, metadata=None)
127 
128     def __getitem__(self, key):
129         section, *keys = always_iterable(key)
130         return self.get(section, *keys)
131 
132     def __contains__(self, item):
133         return item in self.config_root
134 
135     # Add support for IPython rich display
136     # see https://ipython.readthedocs.io/en/stable/config/integrating.html
137     def _repr_json_(self):
138         return self.config_root._repr_json_()
139 
140 
141 CONFIG = YTConfig()
142 
143 
144 def _cast_bool_helper(value):
145     if value == "True":
146         return True
147     elif value == "False":
148         return False
149     else:
150         raise ValueError("Cannot safely cast to bool")
151 
152 
153 def _expand_all(s):
154     return os.path.expandvars(os.path.expanduser(s))
155 
156 
157 def _cast_value_helper(value, types=(_cast_bool_helper, int, float, _expand_all)):
158     for t in types:
159         try:
160             retval = t(value)
161             return retval
162         except ValueError:
163             pass
164 
165 
166 def get_config(section, option):
167     *option_path, option_name = option.split(".")
168     return CONFIG.get(section, *option_path, option_name)
169 
170 
171 def set_config(section, option, value, config_file):
172     if not CONFIG.has_section(section):
173         CONFIG.add_section(section)
174 
175     option_path = option.split(".")
176     CONFIG.set(section, *option_path, _cast_value_helper(value))
177     write_config(config_file)
178 
179 
180 def write_config(config_file):
181     CONFIG.write(config_file)
182 
183 
184 def rm_config(section, option, config_file):
185     option_path = option.split(".")
186     CONFIG.remove(section, *option_path)
187     write_config(config_file)
188
```
--- 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/yt/utilities/configure.py b/yt/utilities/configure.py
--- a/yt/utilities/configure.py
+++ b/yt/utilities/configure.py
@@ -1,6 +1,7 @@
 import os
 import sys
 import warnings
+from pathlib import Path
 from typing import Callable, List
 
 import tomli_w
@@ -106,12 +107,19 @@
         config_as_str = tomli_w.dumps(value)
 
         try:
-            # Assuming file_handler has a write attribute
+            file_path = Path(file_handler)
+        except TypeError:
+            if not hasattr(file_handler, "write"):
+                raise TypeError(
+                    f"Expected a path to a file, or a writable object, got {file_handler}"
+                ) from None
             file_handler.write(config_as_str)
-        except AttributeError:
-            # Otherwise we expect a path to a file
-            with open(file_handler, mode="w") as fh:
-                fh.write(config_as_str)
+        else:
+            pdir = file_path.parent
+            if not pdir.exists():
+                warnings.warn(f"{pdir!s} does not exist, creating it (recursively)")
+                os.makedirs(pdir)
+            file_path.write_text(config_as_str)
 
     @staticmethod
     def get_global_config_file():

{"golden_diff": "diff --git a/yt/utilities/configure.py b/yt/utilities/configure.py\n--- a/yt/utilities/configure.py\n+++ b/yt/utilities/configure.py\n@@ -1,6 +1,7 @@\n import os\n import sys\n import warnings\n+from pathlib import Path\n from typing import Callable, List\n \n import tomli_w\n@@ -106,12 +107,19 @@\n         config_as_str = tomli_w.dumps(value)\n \n         try:\n-            # Assuming file_handler has a write attribute\n+            file_path = Path(file_handler)\n+        except TypeError:\n+            if not hasattr(file_handler, \"write\"):\n+                raise TypeError(\n+                    f\"Expected a path to a file, or a writable object, got {file_handler}\"\n+                ) from None\n             file_handler.write(config_as_str)\n-        except AttributeError:\n-            # Otherwise we expect a path to a file\n-            with open(file_handler, mode=\"w\") as fh:\n-                fh.write(config_as_str)\n+        else:\n+            pdir = file_path.parent\n+            if not pdir.exists():\n+                warnings.warn(f\"{pdir!s} does not exist, creating it (recursively)\")\n+                os.makedirs(pdir)\n+            file_path.write_text(config_as_str)\n \n     @staticmethod\n     def get_global_config_file():\n", "issue": "REG: fail to configure yt from the command line if $HOME/.config/ doesn't exist\n### Bug report\r\n\r\n**Bug summary**\r\n\r\nThis was discovered downstream thanks to yt_astro_analysis' CI\r\n\r\n**Code for reproduction**\r\n```shell\r\nyt config set --global yt suppress_stream_logging True\r\n```\r\n\r\n**Actual outcome**\r\n\r\n```python-traceback\r\nTraceback (most recent call last):\r\n  File \"/Users/robcleme/dev/yt-project/yt/yt/utilities/configure.py\", line 106, in write\r\n    file_handler.write(config_as_str)\r\nAttributeError: 'str' object has no attribute 'write'\r\n\r\nDuring handling of the above exception, another exception occurred:\r\n\r\nTraceback (most recent call last):\r\n  File \"/Users/robcleme/.pyenv/versions/38-yt-dev/bin/yt\", line 33, in <module>\r\n    sys.exit(load_entry_point('yt', 'console_scripts', 'yt')())\r\n  File \"/Users/robcleme/dev/yt-project/yt/yt/utilities/command_line.py\", line 1632, in run_main\r\n    args.func(args)\r\n  File \"/Users/robcleme/dev/yt-project/yt/yt/utilities/command_line.py\", line 224, in run\r\n    self(args)\r\n  File \"/Users/robcleme/dev/yt-project/yt/yt/utilities/command_line.py\", line 1418, in __call__\r\n    set_config(args.section, args.option, args.value, self.config_file)\r\n  File \"/Users/robcleme/dev/yt-project/yt/yt/utilities/configure.py\", line 173, in set_config\r\n    write_config(config_file)\r\n  File \"/Users/robcleme/dev/yt-project/yt/yt/utilities/configure.py\", line 177, in write_config\r\n    CONFIG.write(config_file)\r\n  File \"/Users/robcleme/dev/yt-project/yt/yt/utilities/configure.py\", line 109, in write\r\n    with open(file_handler, mode=\"w\") as fh:\r\nFileNotFoundError: [Errno 2] No such file or directory: '/Users/robcleme/.config/yt/yt.toml'\r\n```\r\n\r\n**Expected outcome**\r\n\r\nThe configuration dir should be created.\r\nI bet this regression is caused by #3626\n", "before_files": [{"content": "import os\nimport sys\nimport warnings\nfrom typing import Callable, List\n\nimport tomli_w\nfrom more_itertools import always_iterable\n\nfrom yt.utilities.configuration_tree import ConfigLeaf, ConfigNode\n\nif sys.version_info >= (3, 11):\n    import tomllib\nelse:\n    import tomli as tomllib\n\nconfiguration_callbacks: List[Callable[[\"YTConfig\"], None]] = []\n\n\ndef config_dir():\n    config_root = os.environ.get(\n        \"XDG_CONFIG_HOME\", os.path.join(os.path.expanduser(\"~\"), \".config\")\n    )\n    conf_dir = os.path.join(config_root, \"yt\")\n    return conf_dir\n\n\nclass YTConfig:\n    def __init__(self, defaults=None):\n        if defaults is None:\n            defaults = {}\n        self.config_root = ConfigNode(None)\n\n    def get(self, section, *keys, callback=None):\n        node_or_leaf = self.config_root.get(section, *keys)\n        if isinstance(node_or_leaf, ConfigLeaf):\n            if callback is not None:\n                return callback(node_or_leaf)\n            return node_or_leaf.value\n        return node_or_leaf\n\n    def get_most_specific(self, section, *keys, **kwargs):\n        use_fallback = \"fallback\" in kwargs\n        fallback = kwargs.pop(\"fallback\", None)\n        try:\n            return self.config_root.get_deepest_leaf(section, *keys)\n        except KeyError as err:\n            if use_fallback:\n                return fallback\n            else:\n                raise err\n\n    def update(self, new_values, metadata=None):\n        if metadata is None:\n            metadata = {}\n        self.config_root.update(new_values, metadata)\n\n    def has_section(self, section):\n        try:\n            self.config_root.get_child(section)\n            return True\n        except KeyError:\n            return False\n\n    def add_section(self, section):\n        self.config_root.add_child(section)\n\n    def remove_section(self, section):\n        if self.has_section(section):\n            self.config_root.remove_child(section)\n            return True\n        else:\n            return False\n\n    def set(self, *args, metadata=None):\n        section, *keys, value = args\n        if metadata is None:\n            metadata = {\"source\": \"runtime\"}\n        self.config_root.upsert_from_list(\n            [section] + list(keys), value, extra_data=metadata\n        )\n\n    def remove(self, *args):\n        self.config_root.pop_leaf(args)\n\n    def read(self, file_names):\n        file_names_read = []\n        for fname in always_iterable(file_names):\n            if not os.path.exists(fname):\n                continue\n            metadata = {\"source\": f\"file: {fname}\"}\n            try:\n                with open(fname, \"rb\") as fh:\n                    data = tomllib.load(fh)\n            except tomllib.TOMLDecodeError as exc:\n                warnings.warn(\n                    f\"Could not load configuration file {fname} (invalid TOML: {exc})\"\n                )\n            else:\n                self.update(data, metadata=metadata)\n                file_names_read.append(fname)\n\n        return file_names_read\n\n    def write(self, file_handler):\n        value = self.config_root.as_dict()\n        config_as_str = tomli_w.dumps(value)\n\n        try:\n            # Assuming file_handler has a write attribute\n            file_handler.write(config_as_str)\n        except AttributeError:\n            # Otherwise we expect a path to a file\n            with open(file_handler, mode=\"w\") as fh:\n                fh.write(config_as_str)\n\n    @staticmethod\n    def get_global_config_file():\n        return os.path.join(config_dir(), \"yt.toml\")\n\n    @staticmethod\n    def get_local_config_file():\n        return os.path.join(os.path.abspath(os.curdir), \"yt.toml\")\n\n    def __setitem__(self, args, value):\n        section, *keys = always_iterable(args)\n        self.set(section, *keys, value, metadata=None)\n\n    def __getitem__(self, key):\n        section, *keys = always_iterable(key)\n        return self.get(section, *keys)\n\n    def __contains__(self, item):\n        return item in self.config_root\n\n    # Add support for IPython rich display\n    # see https://ipython.readthedocs.io/en/stable/config/integrating.html\n    def _repr_json_(self):\n        return self.config_root._repr_json_()\n\n\nCONFIG = YTConfig()\n\n\ndef _cast_bool_helper(value):\n    if value == \"True\":\n        return True\n    elif value == \"False\":\n        return False\n    else:\n        raise ValueError(\"Cannot safely cast to bool\")\n\n\ndef _expand_all(s):\n    return os.path.expandvars(os.path.expanduser(s))\n\n\ndef _cast_value_helper(value, types=(_cast_bool_helper, int, float, _expand_all)):\n    for t in types:\n        try:\n            retval = t(value)\n            return retval\n        except ValueError:\n            pass\n\n\ndef get_config(section, option):\n    *option_path, option_name = option.split(\".\")\n    return CONFIG.get(section, *option_path, option_name)\n\n\ndef set_config(section, option, value, config_file):\n    if not CONFIG.has_section(section):\n        CONFIG.add_section(section)\n\n    option_path = option.split(\".\")\n    CONFIG.set(section, *option_path, _cast_value_helper(value))\n    write_config(config_file)\n\n\ndef write_config(config_file):\n    CONFIG.write(config_file)\n\n\ndef rm_config(section, option, config_file):\n    option_path = option.split(\".\")\n    CONFIG.remove(section, *option_path)\n    write_config(config_file)\n", "path": "yt/utilities/configure.py"}], "after_files": [{"content": "import os\nimport sys\nimport warnings\nfrom pathlib import Path\nfrom typing import Callable, List\n\nimport tomli_w\nfrom more_itertools import always_iterable\n\nfrom yt.utilities.configuration_tree import ConfigLeaf, ConfigNode\n\nif sys.version_info >= (3, 11):\n    import tomllib\nelse:\n    import tomli as tomllib\n\nconfiguration_callbacks: List[Callable[[\"YTConfig\"], None]] = []\n\n\ndef config_dir():\n    config_root = os.environ.get(\n        \"XDG_CONFIG_HOME\", os.path.join(os.path.expanduser(\"~\"), \".config\")\n    )\n    conf_dir = os.path.join(config_root, \"yt\")\n    return conf_dir\n\n\nclass YTConfig:\n    def __init__(self, defaults=None):\n        if defaults is None:\n            defaults = {}\n        self.config_root = ConfigNode(None)\n\n    def get(self, section, *keys, callback=None):\n        node_or_leaf = self.config_root.get(section, *keys)\n        if isinstance(node_or_leaf, ConfigLeaf):\n            if callback is not None:\n                return callback(node_or_leaf)\n            return node_or_leaf.value\n        return node_or_leaf\n\n    def get_most_specific(self, section, *keys, **kwargs):\n        use_fallback = \"fallback\" in kwargs\n        fallback = kwargs.pop(\"fallback\", None)\n        try:\n            return self.config_root.get_deepest_leaf(section, *keys)\n        except KeyError as err:\n            if use_fallback:\n                return fallback\n            else:\n                raise err\n\n    def update(self, new_values, metadata=None):\n        if metadata is None:\n            metadata = {}\n        self.config_root.update(new_values, metadata)\n\n    def has_section(self, section):\n        try:\n            self.config_root.get_child(section)\n            return True\n        except KeyError:\n            return False\n\n    def add_section(self, section):\n        self.config_root.add_child(section)\n\n    def remove_section(self, section):\n        if self.has_section(section):\n            self.config_root.remove_child(section)\n            return True\n        else:\n            return False\n\n    def set(self, *args, metadata=None):\n        section, *keys, value = args\n        if metadata is None:\n            metadata = {\"source\": \"runtime\"}\n        self.config_root.upsert_from_list(\n            [section] + list(keys), value, extra_data=metadata\n        )\n\n    def remove(self, *args):\n        self.config_root.pop_leaf(args)\n\n    def read(self, file_names):\n        file_names_read = []\n        for fname in always_iterable(file_names):\n            if not os.path.exists(fname):\n                continue\n            metadata = {\"source\": f\"file: {fname}\"}\n            try:\n                with open(fname, \"rb\") as fh:\n                    data = tomllib.load(fh)\n            except tomllib.TOMLDecodeError as exc:\n                warnings.warn(\n                    f\"Could not load configuration file {fname} (invalid TOML: {exc})\"\n                )\n            else:\n                self.update(data, metadata=metadata)\n                file_names_read.append(fname)\n\n        return file_names_read\n\n    def write(self, file_handler):\n        value = self.config_root.as_dict()\n        config_as_str = tomli_w.dumps(value)\n\n        try:\n            file_path = Path(file_handler)\n        except TypeError:\n            if not hasattr(file_handler, \"write\"):\n                raise TypeError(\n                    f\"Expected a path to a file, or a writable object, got {file_handler}\"\n                ) from None\n            file_handler.write(config_as_str)\n        else:\n            pdir = file_path.parent\n            if not pdir.exists():\n                warnings.warn(f\"{pdir!s} does not exist, creating it (recursively)\")\n                os.makedirs(pdir)\n            file_path.write_text(config_as_str)\n\n    @staticmethod\n    def get_global_config_file():\n        return os.path.join(config_dir(), \"yt.toml\")\n\n    @staticmethod\n    def get_local_config_file():\n        return os.path.join(os.path.abspath(os.curdir), \"yt.toml\")\n\n    def __setitem__(self, args, value):\n        section, *keys = always_iterable(args)\n        self.set(section, *keys, value, metadata=None)\n\n    def __getitem__(self, key):\n        section, *keys = always_iterable(key)\n        return self.get(section, *keys)\n\n    def __contains__(self, item):\n        return item in self.config_root\n\n    # Add support for IPython rich display\n    # see https://ipython.readthedocs.io/en/stable/config/integrating.html\n    def _repr_json_(self):\n        return self.config_root._repr_json_()\n\n\nCONFIG = YTConfig()\n\n\ndef _cast_bool_helper(value):\n    if value == \"True\":\n        return True\n    elif value == \"False\":\n        return False\n    else:\n        raise ValueError(\"Cannot safely cast to bool\")\n\n\ndef _expand_all(s):\n    return os.path.expandvars(os.path.expanduser(s))\n\n\ndef _cast_value_helper(value, types=(_cast_bool_helper, int, float, _expand_all)):\n    for t in types:\n        try:\n            retval = t(value)\n            return retval\n        except ValueError:\n            pass\n\n\ndef get_config(section, option):\n    *option_path, option_name = option.split(\".\")\n    return CONFIG.get(section, *option_path, option_name)\n\n\ndef set_config(section, option, value, config_file):\n    if not CONFIG.has_section(section):\n        CONFIG.add_section(section)\n\n    option_path = option.split(\".\")\n    CONFIG.set(section, *option_path, _cast_value_helper(value))\n    write_config(config_file)\n\n\ndef write_config(config_file):\n    CONFIG.write(config_file)\n\n\ndef rm_config(section, option, config_file):\n    option_path = option.split(\".\")\n    CONFIG.remove(section, *option_path)\n    write_config(config_file)\n", "path": "yt/utilities/configure.py"}]}