prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  Fix simple typo: seperate -> separate
  # Issue Type
  
  [x] Bug (Typo)
  
  # Steps to Replicate
  
  1. Examine mkdocs/commands/serve.py.
  2. Search for `seperate`.
  
  # Expected Behaviour
  
  1. Should read `separate`.
  
  
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `mkdocs/commands/serve.py`
  Content:
  ```
  1 import logging
  2 import shutil
  3 import tempfile
  4 import sys
  5 
  6 from os.path import isfile, join
  7 from mkdocs.commands.build import build
  8 from mkdocs.config import load_config
  9 
  10 log = logging.getLogger(__name__)
  11 
  12 
  13 def _init_asyncio_patch():
  14     """
  15     Select compatible event loop for Tornado 5+.
  16 
  17     As of Python 3.8, the default event loop on Windows is `proactor`,
  18     however Tornado requires the old default "selector" event loop.
  19     As Tornado has decided to leave this to users to set, MkDocs needs
  20     to set it. See https://github.com/tornadoweb/tornado/issues/2608.
  21     """
  22     if sys.platform.startswith("win") and sys.version_info >= (3, 8):
  23         import asyncio
  24         try:
  25             from asyncio import WindowsSelectorEventLoopPolicy
  26         except ImportError:
  27             pass  # Can't assign a policy which doesn't exist.
  28         else:
  29             if not isinstance(asyncio.get_event_loop_policy(), WindowsSelectorEventLoopPolicy):
  30                 asyncio.set_event_loop_policy(WindowsSelectorEventLoopPolicy())
  31 
  32 
  33 def _get_handler(site_dir, StaticFileHandler):
  34 
  35     from tornado.template import Loader
  36 
  37     class WebHandler(StaticFileHandler):
  38 
  39         def write_error(self, status_code, **kwargs):
  40 
  41             if status_code in (404, 500):
  42                 error_page = '{}.html'.format(status_code)
  43                 if isfile(join(site_dir, error_page)):
  44                     self.write(Loader(site_dir).load(error_page).generate())
  45                 else:
  46                     super().write_error(status_code, **kwargs)
  47 
  48     return WebHandler
  49 
  50 
  51 def _livereload(host, port, config, builder, site_dir):
  52 
  53     # We are importing here for anyone that has issues with livereload. Even if
  54     # this fails, the --no-livereload alternative should still work.
  55     _init_asyncio_patch()
  56     from livereload import Server
  57     import livereload.handlers
  58 
  59     class LiveReloadServer(Server):
  60 
  61         def get_web_handlers(self, script):
  62             handlers = super().get_web_handlers(script)
  63             # replace livereload handler
  64             return [(handlers[0][0], _get_handler(site_dir, livereload.handlers.StaticFileHandler), handlers[0][2],)]
  65 
  66     server = LiveReloadServer()
  67 
  68     # Watch the documentation files, the config file and the theme files.
  69     server.watch(config['docs_dir'], builder)
  70     server.watch(config['config_file_path'], builder)
  71 
  72     for d in config['theme'].dirs:
  73         server.watch(d, builder)
  74 
  75     # Run `serve` plugin events.
  76     server = config['plugins'].run_event('serve', server, config=config)
  77 
  78     server.serve(root=site_dir, host=host, port=port, restart_delay=0)
  79 
  80 
  81 def _static_server(host, port, site_dir):
  82 
  83     # Importing here to seperate the code paths from the --livereload
  84     # alternative.
  85     _init_asyncio_patch()
  86     from tornado import ioloop
  87     from tornado import web
  88 
  89     application = web.Application([
  90         (r"/(.*)", _get_handler(site_dir, web.StaticFileHandler), {
  91             "path": site_dir,
  92             "default_filename": "index.html"
  93         }),
  94     ])
  95     application.listen(port=port, address=host)
  96 
  97     log.info('Running at: http://%s:%s/', host, port)
  98     log.info('Hold ctrl+c to quit.')
  99     try:
  100         ioloop.IOLoop.instance().start()
  101     except KeyboardInterrupt:
  102         log.info('Stopping server...')
  103 
  104 
  105 def serve(config_file=None, dev_addr=None, strict=None, theme=None,
  106           theme_dir=None, livereload='livereload', **kwargs):
  107     """
  108     Start the MkDocs development server
  109 
  110     By default it will serve the documentation on http://localhost:8000/ and
  111     it will rebuild the documentation and refresh the page automatically
  112     whenever a file is edited.
  113     """
  114 
  115     # Create a temporary build directory, and set some options to serve it
  116     # PY2 returns a byte string by default. The Unicode prefix ensures a Unicode
  117     # string is returned. And it makes MkDocs temp dirs easier to identify.
  118     site_dir = tempfile.mkdtemp(prefix='mkdocs_')
  119 
  120     def builder():
  121         log.info("Building documentation...")
  122         config = load_config(
  123             config_file=config_file,
  124             dev_addr=dev_addr,
  125             strict=strict,
  126             theme=theme,
  127             theme_dir=theme_dir,
  128             site_dir=site_dir,
  129             **kwargs
  130         )
  131         # Override a few config settings after validation
  132         config['site_url'] = 'http://{}/'.format(config['dev_addr'])
  133 
  134         live_server = livereload in ['dirty', 'livereload']
  135         dirty = livereload == 'dirty'
  136         build(config, live_server=live_server, dirty=dirty)
  137         return config
  138 
  139     try:
  140         # Perform the initial build
  141         config = builder()
  142 
  143         host, port = config['dev_addr']
  144 
  145         if livereload in ['livereload', 'dirty']:
  146             _livereload(host, port, config, builder, site_dir)
  147         else:
  148             _static_server(host, port, site_dir)
  149     finally:
  150         shutil.rmtree(site_dir)
  151
  ```
  --- 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/mkdocs/commands/serve.py b/mkdocs/commands/serve.py
  --- a/mkdocs/commands/serve.py
  +++ b/mkdocs/commands/serve.py
  @@ -80,7 +80,7 @@
   
   def _static_server(host, port, site_dir):
   
  -    # Importing here to seperate the code paths from the --livereload
  +    # Importing here to separate the code paths from the --livereload
       # alternative.
       _init_asyncio_patch()
       from tornado import ioloop
  
verification_info: {"golden_diff": "diff --git a/mkdocs/commands/serve.py b/mkdocs/commands/serve.py\n--- a/mkdocs/commands/serve.py\n+++ b/mkdocs/commands/serve.py\n@@ -80,7 +80,7 @@\n \n def _static_server(host, port, site_dir):\n \n-    # Importing here to seperate the code paths from the --livereload\n+    # Importing here to separate the code paths from the --livereload\n     # alternative.\n     _init_asyncio_patch()\n     from tornado import ioloop\n", "issue": "Fix simple typo: seperate -> separate\n# Issue Type\n\n[x] Bug (Typo)\n\n# Steps to Replicate\n\n1. Examine mkdocs/commands/serve.py.\n2. Search for `seperate`.\n\n# Expected Behaviour\n\n1. Should read `separate`.\n\n\n", "before_files": [{"content": "import logging\nimport shutil\nimport tempfile\nimport sys\n\nfrom os.path import isfile, join\nfrom mkdocs.commands.build import build\nfrom mkdocs.config import load_config\n\nlog = logging.getLogger(__name__)\n\n\ndef _init_asyncio_patch():\n    \"\"\"\n    Select compatible event loop for Tornado 5+.\n\n    As of Python 3.8, the default event loop on Windows is `proactor`,\n    however Tornado requires the old default \"selector\" event loop.\n    As Tornado has decided to leave this to users to set, MkDocs needs\n    to set it. See https://github.com/tornadoweb/tornado/issues/2608.\n    \"\"\"\n    if sys.platform.startswith(\"win\") and sys.version_info >= (3, 8):\n        import asyncio\n        try:\n            from asyncio import WindowsSelectorEventLoopPolicy\n        except ImportError:\n            pass  # Can't assign a policy which doesn't exist.\n        else:\n            if not isinstance(asyncio.get_event_loop_policy(), WindowsSelectorEventLoopPolicy):\n                asyncio.set_event_loop_policy(WindowsSelectorEventLoopPolicy())\n\n\ndef _get_handler(site_dir, StaticFileHandler):\n\n    from tornado.template import Loader\n\n    class WebHandler(StaticFileHandler):\n\n        def write_error(self, status_code, **kwargs):\n\n            if status_code in (404, 500):\n                error_page = '{}.html'.format(status_code)\n                if isfile(join(site_dir, error_page)):\n                    self.write(Loader(site_dir).load(error_page).generate())\n                else:\n                    super().write_error(status_code, **kwargs)\n\n    return WebHandler\n\n\ndef _livereload(host, port, config, builder, site_dir):\n\n    # We are importing here for anyone that has issues with livereload. Even if\n    # this fails, the --no-livereload alternative should still work.\n    _init_asyncio_patch()\n    from livereload import Server\n    import livereload.handlers\n\n    class LiveReloadServer(Server):\n\n        def get_web_handlers(self, script):\n            handlers = super().get_web_handlers(script)\n            # replace livereload handler\n            return [(handlers[0][0], _get_handler(site_dir, livereload.handlers.StaticFileHandler), handlers[0][2],)]\n\n    server = LiveReloadServer()\n\n    # Watch the documentation files, the config file and the theme files.\n    server.watch(config['docs_dir'], builder)\n    server.watch(config['config_file_path'], builder)\n\n    for d in config['theme'].dirs:\n        server.watch(d, builder)\n\n    # Run `serve` plugin events.\n    server = config['plugins'].run_event('serve', server, config=config)\n\n    server.serve(root=site_dir, host=host, port=port, restart_delay=0)\n\n\ndef _static_server(host, port, site_dir):\n\n    # Importing here to seperate the code paths from the --livereload\n    # alternative.\n    _init_asyncio_patch()\n    from tornado import ioloop\n    from tornado import web\n\n    application = web.Application([\n        (r\"/(.*)\", _get_handler(site_dir, web.StaticFileHandler), {\n            \"path\": site_dir,\n            \"default_filename\": \"index.html\"\n        }),\n    ])\n    application.listen(port=port, address=host)\n\n    log.info('Running at: http://%s:%s/', host, port)\n    log.info('Hold ctrl+c to quit.')\n    try:\n        ioloop.IOLoop.instance().start()\n    except KeyboardInterrupt:\n        log.info('Stopping server...')\n\n\ndef serve(config_file=None, dev_addr=None, strict=None, theme=None,\n          theme_dir=None, livereload='livereload', **kwargs):\n    \"\"\"\n    Start the MkDocs development server\n\n    By default it will serve the documentation on http://localhost:8000/ and\n    it will rebuild the documentation and refresh the page automatically\n    whenever a file is edited.\n    \"\"\"\n\n    # Create a temporary build directory, and set some options to serve it\n    # PY2 returns a byte string by default. The Unicode prefix ensures a Unicode\n    # string is returned. And it makes MkDocs temp dirs easier to identify.\n    site_dir = tempfile.mkdtemp(prefix='mkdocs_')\n\n    def builder():\n        log.info(\"Building documentation...\")\n        config = load_config(\n            config_file=config_file,\n            dev_addr=dev_addr,\n            strict=strict,\n            theme=theme,\n            theme_dir=theme_dir,\n            site_dir=site_dir,\n            **kwargs\n        )\n        # Override a few config settings after validation\n        config['site_url'] = 'http://{}/'.format(config['dev_addr'])\n\n        live_server = livereload in ['dirty', 'livereload']\n        dirty = livereload == 'dirty'\n        build(config, live_server=live_server, dirty=dirty)\n        return config\n\n    try:\n        # Perform the initial build\n        config = builder()\n\n        host, port = config['dev_addr']\n\n        if livereload in ['livereload', 'dirty']:\n            _livereload(host, port, config, builder, site_dir)\n        else:\n            _static_server(host, port, site_dir)\n    finally:\n        shutil.rmtree(site_dir)\n", "path": "mkdocs/commands/serve.py"}], "after_files": [{"content": "import logging\nimport shutil\nimport tempfile\nimport sys\n\nfrom os.path import isfile, join\nfrom mkdocs.commands.build import build\nfrom mkdocs.config import load_config\n\nlog = logging.getLogger(__name__)\n\n\ndef _init_asyncio_patch():\n    \"\"\"\n    Select compatible event loop for Tornado 5+.\n\n    As of Python 3.8, the default event loop on Windows is `proactor`,\n    however Tornado requires the old default \"selector\" event loop.\n    As Tornado has decided to leave this to users to set, MkDocs needs\n    to set it. See https://github.com/tornadoweb/tornado/issues/2608.\n    \"\"\"\n    if sys.platform.startswith(\"win\") and sys.version_info >= (3, 8):\n        import asyncio\n        try:\n            from asyncio import WindowsSelectorEventLoopPolicy\n        except ImportError:\n            pass  # Can't assign a policy which doesn't exist.\n        else:\n            if not isinstance(asyncio.get_event_loop_policy(), WindowsSelectorEventLoopPolicy):\n                asyncio.set_event_loop_policy(WindowsSelectorEventLoopPolicy())\n\n\ndef _get_handler(site_dir, StaticFileHandler):\n\n    from tornado.template import Loader\n\n    class WebHandler(StaticFileHandler):\n\n        def write_error(self, status_code, **kwargs):\n\n            if status_code in (404, 500):\n                error_page = '{}.html'.format(status_code)\n                if isfile(join(site_dir, error_page)):\n                    self.write(Loader(site_dir).load(error_page).generate())\n                else:\n                    super().write_error(status_code, **kwargs)\n\n    return WebHandler\n\n\ndef _livereload(host, port, config, builder, site_dir):\n\n    # We are importing here for anyone that has issues with livereload. Even if\n    # this fails, the --no-livereload alternative should still work.\n    _init_asyncio_patch()\n    from livereload import Server\n    import livereload.handlers\n\n    class LiveReloadServer(Server):\n\n        def get_web_handlers(self, script):\n            handlers = super().get_web_handlers(script)\n            # replace livereload handler\n            return [(handlers[0][0], _get_handler(site_dir, livereload.handlers.StaticFileHandler), handlers[0][2],)]\n\n    server = LiveReloadServer()\n\n    # Watch the documentation files, the config file and the theme files.\n    server.watch(config['docs_dir'], builder)\n    server.watch(config['config_file_path'], builder)\n\n    for d in config['theme'].dirs:\n        server.watch(d, builder)\n\n    # Run `serve` plugin events.\n    server = config['plugins'].run_event('serve', server, config=config)\n\n    server.serve(root=site_dir, host=host, port=port, restart_delay=0)\n\n\ndef _static_server(host, port, site_dir):\n\n    # Importing here to separate the code paths from the --livereload\n    # alternative.\n    _init_asyncio_patch()\n    from tornado import ioloop\n    from tornado import web\n\n    application = web.Application([\n        (r\"/(.*)\", _get_handler(site_dir, web.StaticFileHandler), {\n            \"path\": site_dir,\n            \"default_filename\": \"index.html\"\n        }),\n    ])\n    application.listen(port=port, address=host)\n\n    log.info('Running at: http://%s:%s/', host, port)\n    log.info('Hold ctrl+c to quit.')\n    try:\n        ioloop.IOLoop.instance().start()\n    except KeyboardInterrupt:\n        log.info('Stopping server...')\n\n\ndef serve(config_file=None, dev_addr=None, strict=None, theme=None,\n          theme_dir=None, livereload='livereload', **kwargs):\n    \"\"\"\n    Start the MkDocs development server\n\n    By default it will serve the documentation on http://localhost:8000/ and\n    it will rebuild the documentation and refresh the page automatically\n    whenever a file is edited.\n    \"\"\"\n\n    # Create a temporary build directory, and set some options to serve it\n    # PY2 returns a byte string by default. The Unicode prefix ensures a Unicode\n    # string is returned. And it makes MkDocs temp dirs easier to identify.\n    site_dir = tempfile.mkdtemp(prefix='mkdocs_')\n\n    def builder():\n        log.info(\"Building documentation...\")\n        config = load_config(\n            config_file=config_file,\n            dev_addr=dev_addr,\n            strict=strict,\n            theme=theme,\n            theme_dir=theme_dir,\n            site_dir=site_dir,\n            **kwargs\n        )\n        # Override a few config settings after validation\n        config['site_url'] = 'http://{}/'.format(config['dev_addr'])\n\n        live_server = livereload in ['dirty', 'livereload']\n        dirty = livereload == 'dirty'\n        build(config, live_server=live_server, dirty=dirty)\n        return config\n\n    try:\n        # Perform the initial build\n        config = builder()\n\n        host, port = config['dev_addr']\n\n        if livereload in ['livereload', 'dirty']:\n            _livereload(host, port, config, builder, site_dir)\n        else:\n            _static_server(host, port, site_dir)\n    finally:\n        shutil.rmtree(site_dir)\n", "path": "mkdocs/commands/serve.py"}]}