prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  The virsh_list_all parser is raising ValueError exceptions in production
  The VirshListAll parser is throwing a large number of the exception ValueError("Line containing 'Id,Name,State' was not found in table",) in production.
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `insights/parsers/virsh_list_all.py`
  Content:
  ```
  1 """VirshListAll - command ``virsh --readonly list --all``
  2 =========================================================
  3 
  4 This module provides VM status using output of command ``virsh --readonly list --all``.
  5 """
  6 from collections import namedtuple
  7 
  8 from insights.specs import Specs
  9 from .. import CommandParser, parser
  10 from . import parse_fixed_table, keyword_search
  11 
  12 
  13 @parser(Specs.virsh_list_all)
  14 class VirshListAll(CommandParser):
  15     """Parsing output of ``virsh --readonly list --all``.
  16 
  17     Typical output of ``virsh --readonly list --all`` command is::
  18 
  19         Id    Name                           State
  20         ----------------------------------------------------
  21         2     rhel7.4                        running
  22         4     rhel7.0                        paused
  23         -     centos6.8-router               shut off
  24         -     cfme-5.7.13                    shut off
  25         -     cfme-rhos-5.9.0.15             shut off
  26         -     fedora-24-kernel               shut off
  27         -     fedora-saio_fedoraSaio         shut off
  28         -     fedora24-misc                  shut off
  29         -     freebsd11.0                    shut off
  30         -     guixSD                         shut off
  31         -     miq-gap-1                      shut off
  32         -     rhel7.2                        shut off
  33         -     RHOSP10                        shut off
  34 
  35 
  36     Examples:
  37 
  38         >>> len(output.search(state='shut off')) == 11
  39         True
  40         >>> len(output.search(id=None)) == 11
  41         True
  42         >>> len(output.search(id=2)) == 1
  43         True
  44         >>> output.search(name='rhel7.4') == [{'state': 'running', 'id': 2, 'name': 'rhel7.4'}]
  45         True
  46         >>> output.get_vm_state('rhel7.0') == 'paused'
  47         True
  48         >>> output.get_vm_state('rhel9.0') is None
  49         True
  50         >>> 'cfme' in output
  51         False
  52         >>> 'cfme-5.7.13' in output
  53         True
  54 
  55     Attributes:
  56         fields (list): List of ``KeyValue`` namedtupules for each line
  57                        in the command.
  58 
  59         cols (list): List id key value pair derived from the command.
  60 
  61         keywords (list): keywords present in the command, each
  62                         keyword is converted to lowercase.
  63 
  64     """
  65     keyvalue = namedtuple('KeyValue',
  66                           ['name', 'state', 'id', 'name_lower'])
  67     """namedtuple: Represent name value pair as a namedtuple with case."""
  68     def _cleanup(self):
  69         for col in self.cols:
  70             if col['id'] == '-':
  71                 col['id'] = None
  72             else:
  73                 col['id'] = (lambda x: int(x) if x.isdigit() else x)(col['id'])
  74 
  75     def parse_content(self, content):
  76         self.fields = []
  77         self.cols = []
  78         self.keywords = []
  79         if not content:
  80             return
  81 
  82         self.cols = parse_fixed_table(content,
  83                                       heading_ignore=['Id', 'Name', 'State'],
  84                                       header_substitute=[('Id', 'id'), ('Name', 'name'), ('State', 'state')])[1:]  # noqa
  85         self._cleanup()
  86 
  87         for item in self.cols:
  88             self.fields.append(self.keyvalue(item['name'], item['state'], item['id'], item['name'].lower()))  # noqa
  89         self.keywords = [name.name_lower for name in self.fields]
  90 
  91     def __contains__(self, keyword):
  92         return keyword.lower() in self.keywords
  93 
  94     def __iter__(self):
  95         return iter(self.fields)
  96 
  97     def search(self, **kw):
  98         '''Search item based on key value pair.
  99 
  100         Example:
  101 
  102             >>> len(output.search(state='shut off')) == 11
  103             True
  104             >>> len(output.search(id=None)) == 11
  105             True
  106             >>> len(output.search(id=2)) == 1
  107             True
  108         '''
  109         return keyword_search(self.cols, **kw)
  110 
  111     def get_vm_state(self, vmname):
  112         '''Get VM state associated with vmname
  113 
  114         Typical output is ``virsh --readonly list --all`` command::
  115 
  116              Id    Name                           State
  117             ----------------------------------------------------
  118              2     rhel7.4                        running
  119              4     rhel7.0                        paused
  120 
  121 
  122         Example:
  123 
  124             >>> output.get_vm_state('rhel7.0')
  125             'paused'
  126 
  127         Args:
  128 
  129             vmname (str): A key. For ex. ``rhel7.0``.
  130 
  131         Returns:
  132 
  133             str: State of VM. Returns None if, ``vmname`` does not exist.
  134         '''
  135         if vmname.lower() in self.keywords:
  136             return self.search(name=vmname)[0]['state']
  137         return None
  138
  ```
  --- 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/insights/parsers/virsh_list_all.py b/insights/parsers/virsh_list_all.py
  --- a/insights/parsers/virsh_list_all.py
  +++ b/insights/parsers/virsh_list_all.py
  @@ -76,6 +76,10 @@
           self.fields = []
           self.cols = []
           self.keywords = []
  +        # Check and remove any error message, or empty lines. This to
  +        # prevent any ValueError exceptions when parse_fixed_table is
  +        # called below.
  +        content = [l for l in content if not l.startswith("error: ") and l != ""]
           if not content:
               return
  
verification_info: {"golden_diff": "diff --git a/insights/parsers/virsh_list_all.py b/insights/parsers/virsh_list_all.py\n--- a/insights/parsers/virsh_list_all.py\n+++ b/insights/parsers/virsh_list_all.py\n@@ -76,6 +76,10 @@\n         self.fields = []\n         self.cols = []\n         self.keywords = []\n+        # Check and remove any error message, or empty lines. This to\n+        # prevent any ValueError exceptions when parse_fixed_table is\n+        # called below.\n+        content = [l for l in content if not l.startswith(\"error: \") and l != \"\"]\n         if not content:\n             return\n", "issue": "The virsh_list_all parser is raising ValueError exceptions in production\nThe VirshListAll parser is throwing a large number of the exception ValueError(\"Line containing 'Id,Name,State' was not found in table\",) in production.\n", "before_files": [{"content": "\"\"\"VirshListAll - command ``virsh --readonly list --all``\n=========================================================\n\nThis module provides VM status using output of command ``virsh --readonly list --all``.\n\"\"\"\nfrom collections import namedtuple\n\nfrom insights.specs import Specs\nfrom .. import CommandParser, parser\nfrom . import parse_fixed_table, keyword_search\n\n\n@parser(Specs.virsh_list_all)\nclass VirshListAll(CommandParser):\n    \"\"\"Parsing output of ``virsh --readonly list --all``.\n\n    Typical output of ``virsh --readonly list --all`` command is::\n\n        Id    Name                           State\n        ----------------------------------------------------\n        2     rhel7.4                        running\n        4     rhel7.0                        paused\n        -     centos6.8-router               shut off\n        -     cfme-5.7.13                    shut off\n        -     cfme-rhos-5.9.0.15             shut off\n        -     fedora-24-kernel               shut off\n        -     fedora-saio_fedoraSaio         shut off\n        -     fedora24-misc                  shut off\n        -     freebsd11.0                    shut off\n        -     guixSD                         shut off\n        -     miq-gap-1                      shut off\n        -     rhel7.2                        shut off\n        -     RHOSP10                        shut off\n\n\n    Examples:\n\n        >>> len(output.search(state='shut off')) == 11\n        True\n        >>> len(output.search(id=None)) == 11\n        True\n        >>> len(output.search(id=2)) == 1\n        True\n        >>> output.search(name='rhel7.4') == [{'state': 'running', 'id': 2, 'name': 'rhel7.4'}]\n        True\n        >>> output.get_vm_state('rhel7.0') == 'paused'\n        True\n        >>> output.get_vm_state('rhel9.0') is None\n        True\n        >>> 'cfme' in output\n        False\n        >>> 'cfme-5.7.13' in output\n        True\n\n    Attributes:\n        fields (list): List of ``KeyValue`` namedtupules for each line\n                       in the command.\n\n        cols (list): List id key value pair derived from the command.\n\n        keywords (list): keywords present in the command, each\n                        keyword is converted to lowercase.\n\n    \"\"\"\n    keyvalue = namedtuple('KeyValue',\n                          ['name', 'state', 'id', 'name_lower'])\n    \"\"\"namedtuple: Represent name value pair as a namedtuple with case.\"\"\"\n    def _cleanup(self):\n        for col in self.cols:\n            if col['id'] == '-':\n                col['id'] = None\n            else:\n                col['id'] = (lambda x: int(x) if x.isdigit() else x)(col['id'])\n\n    def parse_content(self, content):\n        self.fields = []\n        self.cols = []\n        self.keywords = []\n        if not content:\n            return\n\n        self.cols = parse_fixed_table(content,\n                                      heading_ignore=['Id', 'Name', 'State'],\n                                      header_substitute=[('Id', 'id'), ('Name', 'name'), ('State', 'state')])[1:]  # noqa\n        self._cleanup()\n\n        for item in self.cols:\n            self.fields.append(self.keyvalue(item['name'], item['state'], item['id'], item['name'].lower()))  # noqa\n        self.keywords = [name.name_lower for name in self.fields]\n\n    def __contains__(self, keyword):\n        return keyword.lower() in self.keywords\n\n    def __iter__(self):\n        return iter(self.fields)\n\n    def search(self, **kw):\n        '''Search item based on key value pair.\n\n        Example:\n\n            >>> len(output.search(state='shut off')) == 11\n            True\n            >>> len(output.search(id=None)) == 11\n            True\n            >>> len(output.search(id=2)) == 1\n            True\n        '''\n        return keyword_search(self.cols, **kw)\n\n    def get_vm_state(self, vmname):\n        '''Get VM state associated with vmname\n\n        Typical output is ``virsh --readonly list --all`` command::\n\n             Id    Name                           State\n            ----------------------------------------------------\n             2     rhel7.4                        running\n             4     rhel7.0                        paused\n\n\n        Example:\n\n            >>> output.get_vm_state('rhel7.0')\n            'paused'\n\n        Args:\n\n            vmname (str): A key. For ex. ``rhel7.0``.\n\n        Returns:\n\n            str: State of VM. Returns None if, ``vmname`` does not exist.\n        '''\n        if vmname.lower() in self.keywords:\n            return self.search(name=vmname)[0]['state']\n        return None\n", "path": "insights/parsers/virsh_list_all.py"}], "after_files": [{"content": "\"\"\"VirshListAll - command ``virsh --readonly list --all``\n=========================================================\n\nThis module provides VM status using output of command ``virsh --readonly list --all``.\n\"\"\"\nfrom collections import namedtuple\n\nfrom insights.specs import Specs\nfrom .. import CommandParser, parser\nfrom . import parse_fixed_table, keyword_search\n\n\n@parser(Specs.virsh_list_all)\nclass VirshListAll(CommandParser):\n    \"\"\"Parsing output of ``virsh --readonly list --all``.\n\n    Typical output of ``virsh --readonly list --all`` command is::\n\n        Id    Name                           State\n        ----------------------------------------------------\n        2     rhel7.4                        running\n        4     rhel7.0                        paused\n        -     centos6.8-router               shut off\n        -     cfme-5.7.13                    shut off\n        -     cfme-rhos-5.9.0.15             shut off\n        -     fedora-24-kernel               shut off\n        -     fedora-saio_fedoraSaio         shut off\n        -     fedora24-misc                  shut off\n        -     freebsd11.0                    shut off\n        -     guixSD                         shut off\n        -     miq-gap-1                      shut off\n        -     rhel7.2                        shut off\n        -     RHOSP10                        shut off\n\n\n    Examples:\n\n        >>> len(output.search(state='shut off')) == 11\n        True\n        >>> len(output.search(id=None)) == 11\n        True\n        >>> len(output.search(id=2)) == 1\n        True\n        >>> output.search(name='rhel7.4') == [{'state': 'running', 'id': 2, 'name': 'rhel7.4'}]\n        True\n        >>> output.get_vm_state('rhel7.0') == 'paused'\n        True\n        >>> output.get_vm_state('rhel9.0') is None\n        True\n        >>> 'cfme' in output\n        False\n        >>> 'cfme-5.7.13' in output\n        True\n\n    Attributes:\n        fields (list): List of ``KeyValue`` namedtupules for each line\n                       in the command.\n\n        cols (list): List id key value pair derived from the command.\n\n        keywords (list): keywords present in the command, each\n                        keyword is converted to lowercase.\n\n    \"\"\"\n    keyvalue = namedtuple('KeyValue',\n                          ['name', 'state', 'id', 'name_lower'])\n    \"\"\"namedtuple: Represent name value pair as a namedtuple with case.\"\"\"\n    def _cleanup(self):\n        for col in self.cols:\n            if col['id'] == '-':\n                col['id'] = None\n            else:\n                col['id'] = (lambda x: int(x) if x.isdigit() else x)(col['id'])\n\n    def parse_content(self, content):\n        self.fields = []\n        self.cols = []\n        self.keywords = []\n        # Check and remove any error message, or empty lines. This to\n        # prevent any ValueError exceptions when parse_fixed_table is\n        # called below.\n        content = [l for l in content if not l.startswith(\"error: \") and l != \"\"]\n        if not content:\n            return\n\n        self.cols = parse_fixed_table(content,\n                                      heading_ignore=['Id', 'Name', 'State'],\n                                      header_substitute=[('Id', 'id'), ('Name', 'name'), ('State', 'state')])[1:]  # noqa\n        self._cleanup()\n\n        for item in self.cols:\n            self.fields.append(self.keyvalue(item['name'], item['state'], item['id'], item['name'].lower()))  # noqa\n        self.keywords = [name.name_lower for name in self.fields]\n\n    def __contains__(self, keyword):\n        return keyword.lower() in self.keywords\n\n    def __iter__(self):\n        return iter(self.fields)\n\n    def search(self, **kw):\n        '''Search item based on key value pair.\n\n        Example:\n\n            >>> len(output.search(state='shut off')) == 11\n            True\n            >>> len(output.search(id=None)) == 11\n            True\n            >>> len(output.search(id=2)) == 1\n            True\n        '''\n        return keyword_search(self.cols, **kw)\n\n    def get_vm_state(self, vmname):\n        '''Get VM state associated with vmname\n\n        Typical output is ``virsh --readonly list --all`` command::\n\n             Id    Name                           State\n            ----------------------------------------------------\n             2     rhel7.4                        running\n             4     rhel7.0                        paused\n\n\n        Example:\n\n            >>> output.get_vm_state('rhel7.0')\n            'paused'\n\n        Args:\n\n            vmname (str): A key. For ex. ``rhel7.0``.\n\n        Returns:\n\n            str: State of VM. Returns None if, ``vmname`` does not exist.\n        '''\n        if vmname.lower() in self.keywords:\n            return self.search(name=vmname)[0]['state']\n        return None\n", "path": "insights/parsers/virsh_list_all.py"}]}