Re: [PATCH RFC 05/32] python/qemu/lib: delint; add flake8 config

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

On 5/14/20 7:53 AM, John Snow wrote:
> Mostly, ignore the "no bare except" rule, because flake8 is not
> contextual and cannot determine if we re-raise. Pylint can, though, so
> always prefer pylint for that.
> 
> Signed-off-by: John Snow <jsnow@redhat.com>
> ---
>  python/qemu/lib/.flake8    |  2 ++
>  python/qemu/lib/accel.py   |  9 ++++++---
>  python/qemu/lib/machine.py | 13 +++++++++----
>  python/qemu/lib/qmp.py     |  4 ++--
>  4 files changed, 19 insertions(+), 9 deletions(-)
>  create mode 100644 python/qemu/lib/.flake8
> 
> diff --git a/python/qemu/lib/.flake8 b/python/qemu/lib/.flake8
> new file mode 100644
> index 0000000000..45d8146f3f
> --- /dev/null
> +++ b/python/qemu/lib/.flake8
> @@ -0,0 +1,2 @@
> +[flake8]
> +extend-ignore = E722  # Pylint handles this, but smarter.
> \ No newline at end of file
> diff --git a/python/qemu/lib/accel.py b/python/qemu/lib/accel.py
> index 36ae85791e..7fabe62920 100644
> --- a/python/qemu/lib/accel.py
> +++ b/python/qemu/lib/accel.py
> @@ -23,11 +23,12 @@
>  # Mapping host architecture to any additional architectures it can
>  # support which often includes its 32 bit cousin.
>  ADDITIONAL_ARCHES = {
> -    "x86_64" : "i386",
> -    "aarch64" : "armhf",
> -    "ppc64le" : "ppc64",
> +    "x86_64": "i386",
> +    "aarch64": "armhf",
> +    "ppc64le": "ppc64",
>  }
>  
> +
>  def list_accel(qemu_bin):
>      """
>      List accelerators enabled in the QEMU binary.
> @@ -47,6 +48,7 @@ def list_accel(qemu_bin):
>      # Skip the first line which is the header.
>      return [acc.strip() for acc in out.splitlines()[1:]]
>  
> +
>  def kvm_available(target_arch=None, qemu_bin=None):
>      """
>      Check if KVM is available using the following heuristic:
> @@ -69,6 +71,7 @@ def kvm_available(target_arch=None, qemu_bin=None):
>          return False
>      return True
>  
> +
>  def tcg_available(qemu_bin):
>      """
>      Check if TCG is available.
> diff --git a/python/qemu/lib/machine.py b/python/qemu/lib/machine.py
> index c79fc8fb89..4b260fa2cb 100644
> --- a/python/qemu/lib/machine.py
> +++ b/python/qemu/lib/machine.py
> @@ -29,6 +29,7 @@
>  
>  LOG = logging.getLogger(__name__)
>  
> +
>  class QEMUMachineError(Exception):
>      """
>      Exception called when an error in QEMUMachine happens.
> @@ -62,7 +63,8 @@ class QEMUMachine:
>      """
>      A QEMU VM
>  
> -    Use this object as a context manager to ensure the QEMU process terminates::
> +    Use this object as a context manager to ensure
> +    the QEMU process terminates::
>  
>          with VM(binary) as vm:
>              ...
> @@ -188,8 +190,10 @@ def send_fd_scm(self, fd=None, file_path=None):
>              fd_param.append(str(fd))
>  
>          devnull = open(os.path.devnull, 'rb')
> -        proc = subprocess.Popen(fd_param, stdin=devnull, stdout=subprocess.PIPE,
> -                                stderr=subprocess.STDOUT, close_fds=False)
> +        proc = subprocess.Popen(
> +            fd_param, stdin=devnull, stdout=subprocess.PIPE,
> +            stderr=subprocess.STDOUT, close_fds=False
> +        )
>          output = proc.communicate()[0]
>          if output:
>              LOG.debug(output)
> @@ -491,7 +495,8 @@ def event_wait(self, name, timeout=60.0, match=None):
>  
>      def events_wait(self, events, timeout=60.0):
>          """
> -        events_wait waits for and returns a named event from QMP with a timeout.
> +        events_wait waits for and returns a named event
> +        from QMP with a timeout.
>  
>          events: a sequence of (name, match_criteria) tuples.
>                  The match criteria are optional and may be None.
> diff --git a/python/qemu/lib/qmp.py b/python/qemu/lib/qmp.py
> index d6c9b2f4b1..6ae7693965 100644
> --- a/python/qemu/lib/qmp.py
> +++ b/python/qemu/lib/qmp.py
> @@ -168,8 +168,8 @@ def accept(self, timeout=15.0):
>  
>          @param timeout: timeout in seconds (nonnegative float number, or
>                          None). The value passed will set the behavior of the
> -                        underneath QMP socket as described in [1]. Default value
> -                        is set to 15.0.
> +                        underneath QMP socket as described in [1].
> +                        Default value is set to 15.0.
>          @return QMP greeting dict
>          @raise OSError on socket connection errors
>          @raise QMPConnectError if the greeting is not received
> 

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>