prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  panel examples gives UnboundLocalError
  #### ALL software version info
  panel 0.12.4
  
  #### Description of expected behavior and the observed behavior
  `$ panel examples` doesn't raise an error
  
  #### Complete, minimal, self-contained example code that reproduces the issue
  
  Was taking a look at https://panel.holoviz.org/#id1
  
  ```
  panel examples
  ```
  
  #### Stack traceback and/or browser JavaScript console output
  
  #### Screenshots or screencasts of the bug in action
  
  <img width="846" alt="Screen Shot 2021-11-04 at 9 23 56 PM" src="https://user-images.githubusercontent.com/17162724/140442696-82e6c5c2-4cd6-40f6-821d-47c87f5e1541.png">
  
  
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `panel/command/__init__.py`
  Content:
  ```
  1 """
  2 Commandline interface to Panel
  3 """
  4 import sys
  5 import argparse
  6 
  7 from bokeh.__main__ import main as bokeh_entry_point
  8 from bokeh.command.subcommands.serve import Serve as BkServe
  9 from bokeh.command.util import die
  10 from bokeh.util.string import nice_join
  11 
  12 from .. import __version__
  13 from .serve import Serve
  14 from .oauth_secret import OAuthSecret
  15 
  16 
  17 def transform_cmds(argv):
  18     """
  19     Allows usage with anaconda-project by remapping the argv list provided
  20     into arguments accepted by Bokeh 0.12.7 or later.
  21     """
  22     replacements = {
  23         '--anaconda-project-host':'--allow-websocket-origin',
  24         '--anaconda-project-port': '--port',
  25         '--anaconda-project-address': '--address'
  26     }
  27     transformed = []
  28     skip = False
  29     for arg in argv:
  30         if skip:
  31             skip = False
  32             continue
  33         if arg in replacements.keys():
  34             transformed.append(replacements[arg])
  35         elif arg == '--anaconda-project-iframe-hosts':
  36             skip = True
  37             continue
  38         elif arg.startswith('--anaconda-project'):
  39             continue
  40         else:
  41             transformed.append(arg)
  42     return transformed
  43 
  44 
  45 def main(args=None):
  46     """Merges commands offered by pyct and bokeh and provides help for both"""
  47     from bokeh.command.subcommands import all as bokeh_commands
  48     bokeh_commands = bokeh_commands + [OAuthSecret]
  49 
  50     try:
  51         import pyct.cmd
  52         pyct_commands = ['copy-examples', 'examples']
  53     except Exception:
  54         pass
  55 
  56     parser = argparse.ArgumentParser(
  57         prog="panel", epilog="See '<command> --help' to read about a specific subcommand."
  58     )
  59 
  60     parser.add_argument('-v', '--version', action='version', version=__version__)
  61 
  62     subs = parser.add_subparsers(help="Sub-commands")
  63 
  64     for cmd in pyct_commands:
  65         cmd = cmd.replace('-', '_')
  66         fn = getattr(pyct.cmd, cmd)
  67         subs.add_parser(cmd, help=fn.__doc__)
  68 
  69     for cls in bokeh_commands:
  70         if cls is BkServe:
  71             subparser = subs.add_parser(Serve.name, help=Serve.help)
  72             subcommand = Serve(parser=subparser)
  73             subparser.set_defaults(invoke=subcommand.invoke)
  74         else:
  75             subs.add_parser(cls.name, help=cls.help)
  76 
  77     if len(sys.argv) == 1:
  78         all_commands = sorted([c.name for c in bokeh_commands] + pyct_commands)
  79         die("ERROR: Must specify subcommand, one of: %s" % nice_join(all_commands))
  80 
  81     if sys.argv[1] in ('--help', '-h'):
  82         args = parser.parse_args(sys.argv[1:])
  83         args.invoke(args)
  84         sys.exit()
  85 
  86     if len(sys.argv) > 1 and any(sys.argv[1] == c.name for c in bokeh_commands):
  87         sys.argv = transform_cmds(sys.argv)
  88         if sys.argv[1] == 'serve':
  89             args = parser.parse_args(sys.argv[1:])
  90             try:
  91                 ret = args.invoke(args)
  92             except Exception as e:
  93                 die("ERROR: " + str(e))
  94         elif sys.argv[1] == 'oauth-secret':
  95             ret = OAuthSecret(parser).invoke(args)
  96         else:
  97             ret = bokeh_entry_point()
  98     elif sys.argv[1] in pyct_commands:
  99         try:
  100             import pyct.cmd
  101         except ImportError:
  102             print("install pyct to enable this command (e.g. `conda install -c pyviz pyct` or `pip install pyct[cmd]`)")
  103             sys.exit(1)
  104         pyct.cmd.substitute_main('panel', cmds=pyct_commands, args=args)
  105     else:
  106         parser.parse_args(sys.argv[1:])
  107         sys.exit(1)
  108 
  109     if ret is False:
  110         sys.exit(1)
  111     elif ret is not True and isinstance(ret, int) and ret != 0:
  112         sys.exit(ret)
  113 
  114 
  115 
  116 if __name__ == "__main__":
  117     main()
  118
  ```
  --- 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/panel/command/__init__.py b/panel/command/__init__.py
  --- a/panel/command/__init__.py
  +++ b/panel/command/__init__.py
  @@ -102,6 +102,7 @@
               print("install pyct to enable this command (e.g. `conda install -c pyviz pyct` or `pip install pyct[cmd]`)")
               sys.exit(1)
           pyct.cmd.substitute_main('panel', cmds=pyct_commands, args=args)
  +        sys.exit()
       else:
           parser.parse_args(sys.argv[1:])
           sys.exit(1)
  
verification_info: {"golden_diff": "diff --git a/panel/command/__init__.py b/panel/command/__init__.py\n--- a/panel/command/__init__.py\n+++ b/panel/command/__init__.py\n@@ -102,6 +102,7 @@\n             print(\"install pyct to enable this command (e.g. `conda install -c pyviz pyct` or `pip install pyct[cmd]`)\")\n             sys.exit(1)\n         pyct.cmd.substitute_main('panel', cmds=pyct_commands, args=args)\n+        sys.exit()\n     else:\n         parser.parse_args(sys.argv[1:])\n         sys.exit(1)\n", "issue": "panel examples gives UnboundLocalError\n#### ALL software version info\r\npanel 0.12.4\r\n\r\n#### Description of expected behavior and the observed behavior\r\n`$ panel examples` doesn't raise an error\r\n\r\n#### Complete, minimal, self-contained example code that reproduces the issue\r\n\r\nWas taking a look at https://panel.holoviz.org/#id1\r\n\r\n```\r\npanel examples\r\n```\r\n\r\n#### Stack traceback and/or browser JavaScript console output\r\n\r\n#### Screenshots or screencasts of the bug in action\r\n\r\n<img width=\"846\" alt=\"Screen Shot 2021-11-04 at 9 23 56 PM\" src=\"https://user-images.githubusercontent.com/17162724/140442696-82e6c5c2-4cd6-40f6-821d-47c87f5e1541.png\">\r\n\r\n\n", "before_files": [{"content": "\"\"\"\nCommandline interface to Panel\n\"\"\"\nimport sys\nimport argparse\n\nfrom bokeh.__main__ import main as bokeh_entry_point\nfrom bokeh.command.subcommands.serve import Serve as BkServe\nfrom bokeh.command.util import die\nfrom bokeh.util.string import nice_join\n\nfrom .. import __version__\nfrom .serve import Serve\nfrom .oauth_secret import OAuthSecret\n\n\ndef transform_cmds(argv):\n    \"\"\"\n    Allows usage with anaconda-project by remapping the argv list provided\n    into arguments accepted by Bokeh 0.12.7 or later.\n    \"\"\"\n    replacements = {\n        '--anaconda-project-host':'--allow-websocket-origin',\n        '--anaconda-project-port': '--port',\n        '--anaconda-project-address': '--address'\n    }\n    transformed = []\n    skip = False\n    for arg in argv:\n        if skip:\n            skip = False\n            continue\n        if arg in replacements.keys():\n            transformed.append(replacements[arg])\n        elif arg == '--anaconda-project-iframe-hosts':\n            skip = True\n            continue\n        elif arg.startswith('--anaconda-project'):\n            continue\n        else:\n            transformed.append(arg)\n    return transformed\n\n\ndef main(args=None):\n    \"\"\"Merges commands offered by pyct and bokeh and provides help for both\"\"\"\n    from bokeh.command.subcommands import all as bokeh_commands\n    bokeh_commands = bokeh_commands + [OAuthSecret]\n\n    try:\n        import pyct.cmd\n        pyct_commands = ['copy-examples', 'examples']\n    except Exception:\n        pass\n\n    parser = argparse.ArgumentParser(\n        prog=\"panel\", epilog=\"See '<command> --help' to read about a specific subcommand.\"\n    )\n\n    parser.add_argument('-v', '--version', action='version', version=__version__)\n\n    subs = parser.add_subparsers(help=\"Sub-commands\")\n\n    for cmd in pyct_commands:\n        cmd = cmd.replace('-', '_')\n        fn = getattr(pyct.cmd, cmd)\n        subs.add_parser(cmd, help=fn.__doc__)\n\n    for cls in bokeh_commands:\n        if cls is BkServe:\n            subparser = subs.add_parser(Serve.name, help=Serve.help)\n            subcommand = Serve(parser=subparser)\n            subparser.set_defaults(invoke=subcommand.invoke)\n        else:\n            subs.add_parser(cls.name, help=cls.help)\n\n    if len(sys.argv) == 1:\n        all_commands = sorted([c.name for c in bokeh_commands] + pyct_commands)\n        die(\"ERROR: Must specify subcommand, one of: %s\" % nice_join(all_commands))\n\n    if sys.argv[1] in ('--help', '-h'):\n        args = parser.parse_args(sys.argv[1:])\n        args.invoke(args)\n        sys.exit()\n\n    if len(sys.argv) > 1 and any(sys.argv[1] == c.name for c in bokeh_commands):\n        sys.argv = transform_cmds(sys.argv)\n        if sys.argv[1] == 'serve':\n            args = parser.parse_args(sys.argv[1:])\n            try:\n                ret = args.invoke(args)\n            except Exception as e:\n                die(\"ERROR: \" + str(e))\n        elif sys.argv[1] == 'oauth-secret':\n            ret = OAuthSecret(parser).invoke(args)\n        else:\n            ret = bokeh_entry_point()\n    elif sys.argv[1] in pyct_commands:\n        try:\n            import pyct.cmd\n        except ImportError:\n            print(\"install pyct to enable this command (e.g. `conda install -c pyviz pyct` or `pip install pyct[cmd]`)\")\n            sys.exit(1)\n        pyct.cmd.substitute_main('panel', cmds=pyct_commands, args=args)\n    else:\n        parser.parse_args(sys.argv[1:])\n        sys.exit(1)\n\n    if ret is False:\n        sys.exit(1)\n    elif ret is not True and isinstance(ret, int) and ret != 0:\n        sys.exit(ret)\n\n\n\nif __name__ == \"__main__\":\n    main()\n", "path": "panel/command/__init__.py"}], "after_files": [{"content": "\"\"\"\nCommandline interface to Panel\n\"\"\"\nimport sys\nimport argparse\n\nfrom bokeh.__main__ import main as bokeh_entry_point\nfrom bokeh.command.subcommands.serve import Serve as BkServe\nfrom bokeh.command.util import die\nfrom bokeh.util.string import nice_join\n\nfrom .. import __version__\nfrom .serve import Serve\nfrom .oauth_secret import OAuthSecret\n\n\ndef transform_cmds(argv):\n    \"\"\"\n    Allows usage with anaconda-project by remapping the argv list provided\n    into arguments accepted by Bokeh 0.12.7 or later.\n    \"\"\"\n    replacements = {\n        '--anaconda-project-host':'--allow-websocket-origin',\n        '--anaconda-project-port': '--port',\n        '--anaconda-project-address': '--address'\n    }\n    transformed = []\n    skip = False\n    for arg in argv:\n        if skip:\n            skip = False\n            continue\n        if arg in replacements.keys():\n            transformed.append(replacements[arg])\n        elif arg == '--anaconda-project-iframe-hosts':\n            skip = True\n            continue\n        elif arg.startswith('--anaconda-project'):\n            continue\n        else:\n            transformed.append(arg)\n    return transformed\n\n\ndef main(args=None):\n    \"\"\"Merges commands offered by pyct and bokeh and provides help for both\"\"\"\n    from bokeh.command.subcommands import all as bokeh_commands\n    bokeh_commands = bokeh_commands + [OAuthSecret]\n\n    try:\n        import pyct.cmd\n        pyct_commands = ['copy-examples', 'examples']\n    except Exception:\n        pass\n\n    parser = argparse.ArgumentParser(\n        prog=\"panel\", epilog=\"See '<command> --help' to read about a specific subcommand.\"\n    )\n\n    parser.add_argument('-v', '--version', action='version', version=__version__)\n\n    subs = parser.add_subparsers(help=\"Sub-commands\")\n\n    for cmd in pyct_commands:\n        cmd = cmd.replace('-', '_')\n        fn = getattr(pyct.cmd, cmd)\n        subs.add_parser(cmd, help=fn.__doc__)\n\n    for cls in bokeh_commands:\n        if cls is BkServe:\n            subparser = subs.add_parser(Serve.name, help=Serve.help)\n            subcommand = Serve(parser=subparser)\n            subparser.set_defaults(invoke=subcommand.invoke)\n        else:\n            subs.add_parser(cls.name, help=cls.help)\n\n    if len(sys.argv) == 1:\n        all_commands = sorted([c.name for c in bokeh_commands] + pyct_commands)\n        die(\"ERROR: Must specify subcommand, one of: %s\" % nice_join(all_commands))\n\n    if sys.argv[1] in ('--help', '-h'):\n        args = parser.parse_args(sys.argv[1:])\n        args.invoke(args)\n        sys.exit()\n\n    if len(sys.argv) > 1 and any(sys.argv[1] == c.name for c in bokeh_commands):\n        sys.argv = transform_cmds(sys.argv)\n        if sys.argv[1] == 'serve':\n            args = parser.parse_args(sys.argv[1:])\n            try:\n                ret = args.invoke(args)\n            except Exception as e:\n                die(\"ERROR: \" + str(e))\n        elif sys.argv[1] == 'oauth-secret':\n            ret = OAuthSecret(parser).invoke(args)\n        else:\n            ret = bokeh_entry_point()\n    elif sys.argv[1] in pyct_commands:\n        try:\n            import pyct.cmd\n        except ImportError:\n            print(\"install pyct to enable this command (e.g. `conda install -c pyviz pyct` or `pip install pyct[cmd]`)\")\n            sys.exit(1)\n        pyct.cmd.substitute_main('panel', cmds=pyct_commands, args=args)\n        sys.exit()\n    else:\n        parser.parse_args(sys.argv[1:])\n        sys.exit(1)\n\n    if ret is False:\n        sys.exit(1)\n    elif ret is not True and isinstance(ret, int) and ret != 0:\n        sys.exit(ret)\n\n\n\nif __name__ == \"__main__\":\n    main()\n", "path": "panel/command/__init__.py"}]}