Re: [PATCH v5 02/16] python: fix broad-exception-raised pylint error

[John Snow]

On Wed, Feb 15, 2023 at 8:26 AM Vladimir Sementsov-Ogievskiy
<vsementsov@yandex-team.ru> wrote:
>
> Now 'make check-dev' called in python/ directory raises several
>
> W0719: Raising too general exception: Exception (broad-exception-raised)
>
> Let's fix.
>
> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>

I think I came to the same conclusions:
https://gitlab.com/jsnow/qemu/-/commit/19bac2ea70cbb5ada4f94d6223cdc96f51a2b3d9

Reviewed-by: John Snow <jsnow@redhat.com>

> ---
>  python/qemu/utils/qemu_ga_client.py | 6 +++---
>  tests/qemu-iotests/iotests.py       | 4 ++--
>  2 files changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/python/qemu/utils/qemu_ga_client.py 
> b/python/qemu/utils/qemu_ga_client.py
> index 8c38a7ac9c..d8411bb2d0 100644
> --- a/python/qemu/utils/qemu_ga_client.py
> +++ b/python/qemu/utils/qemu_ga_client.py
> @@ -155,7 +155,7 @@ def ping(self, timeout: Optional[float]) -> bool:
>
>      def fsfreeze(self, cmd: str) -> object:
>          if cmd not in ['status', 'freeze', 'thaw']:
> -            raise Exception('Invalid command: ' + cmd)
> +            raise ValueError('Invalid command: ' + cmd)
>          # Can be int (freeze, thaw) or GuestFsfreezeStatus (status)
>          return getattr(self.qga, 'fsfreeze' + '_' + cmd)()
>
> @@ -167,7 +167,7 @@ def fstrim(self, minimum: int) -> Dict[str, object]:
>
>      def suspend(self, mode: str) -> None:
>          if mode not in ['disk', 'ram', 'hybrid']:
> -            raise Exception('Invalid mode: ' + mode)
> +            raise ValueError('Invalid mode: ' + mode)
>
>          try:
>              getattr(self.qga, 'suspend' + '_' + mode)()
> @@ -178,7 +178,7 @@ def suspend(self, mode: str) -> None:
>
>      def shutdown(self, mode: str = 'powerdown') -> None:
>          if mode not in ['powerdown', 'halt', 'reboot']:
> -            raise Exception('Invalid mode: ' + mode)
> +            raise ValueError('Invalid mode: ' + mode)
>
>          try:
>              self.qga.shutdown(mode=mode)
> diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
> index 94aeb3f3b2..3e82c634cf 100644
> --- a/tests/qemu-iotests/iotests.py
> +++ b/tests/qemu-iotests/iotests.py
> @@ -720,7 +720,7 @@ def __exit__(self, exc_type, value, traceback):
>          signal.setitimer(signal.ITIMER_REAL, 0)
>          return False
>      def timeout(self, signum, frame):
> -        raise Exception(self.errmsg)
> +        raise TimeoutError(self.errmsg)
>
>  def file_pattern(name):
>      return "{0}-{1}".format(os.getpid(), name)
> @@ -804,7 +804,7 @@ def remote_filename(path):
>      elif imgproto == 'ssh':
>          return "ssh://%s@127.0.0.1:22%s" % (os.environ.get('USER'), path)
>      else:
> -        raise Exception("Protocol %s not supported" % (imgproto))
> +        raise ValueError("Protocol %s not supported" % (imgproto))
>
>  class VM(qtest.QEMUQtestMachine):
>      '''A QEMU VM'''
> --
> 2.34.1
>