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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-devel@nongnu.org, ehabkost@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 5/29/19 1:18 AM, Markus Armbruster wrote: > John Snow writes: > >> Since we're out in a new module, do a quick cursory pass of some of the >> more obvious style issues. >> >> Signed-off-by: John Snow >> --- >> python/qemu/machine.py | 23 +++++++++++++++-------- >> 1 file changed, 15 insertions(+), 8 deletions(-) >> >> diff --git a/python/qemu/machine.py b/python/qemu/machine.py >> index a8a311b035..925046fc20 100644 >> --- a/python/qemu/machine.py >> +++ b/python/qemu/machine.py >> @@ -16,7 +16,6 @@ import errno >> import logging >> import os >> import subprocess >> -import re >> import shutil >> import socket >> import tempfile >> @@ -54,7 +53,7 @@ class MonitorResponseError(qmp.QMPError): >> self.reply = reply >> >> >> -class QEMUMachine(object): >> +class QEMUMachine: > > Premature. Makes it a "classic class" in Python 2. See > > https://docs.python.org/2.7/reference/datamodel.html#new-style-and-classic-classes > https://pythonclock.org/ > I thought we had dropped support for 2? No? I need to double-check this patch then. I have not been testing with 2. >> """ >> A QEMU VM >> >> @@ -119,8 +118,10 @@ class QEMUMachine(object): >> self.shutdown() >> return False >> >> - # This can be used to add an unused monitor instance. >> def add_monitor_null(self): >> + """ >> + This can be used to add an unused monitor instance. >> + """ >> self._args.append('-monitor') >> self._args.append('null') >> >> @@ -143,10 +144,13 @@ class QEMUMachine(object): >> self._args.append(','.join(options)) >> return self >> >> - # Exactly one of fd and file_path must be given. >> - # (If it is file_path, the helper will open that file and pass its >> - # own fd) >> def send_fd_scm(self, fd=None, file_path=None): >> + """ >> + Send an fd or file_path to socket_scm_helper. >> + >> + Exactly one of fd and file_path must be given. >> + If it is file_path, the helper will open that file and pass its own fd. >> + """ >> # In iotest.py, the qmp should always use unix socket. >> assert self._qmp.is_scm_available() >> if self._socket_scm_helper is None: >> @@ -194,14 +198,17 @@ class QEMUMachine(object): >> raise >> >> def is_running(self): >> + """Returns true if the VM is running.""" >> return self._popen is not None and self._popen.poll() is None >> >> def exitcode(self): >> + """Returns the exit code if possible, or None.""" >> if self._popen is None: >> return None >> return self._popen.poll() >> >> def get_pid(self): >> + """Returns the PID of the running process, or None.""" >> if not self.is_running(): >> return None >> return self._popen.pid >> @@ -339,7 +346,7 @@ class QEMUMachine(object): >> command = ' '.join(self._qemu_full_args) >> else: >> command = '' >> - LOG.warn(msg, -exitcode, command) >> + LOG.warning(msg, -exitcode, command) > > Is this a bug fix? > No, "warn" is just deprecated. >> >> self._launched = False >> >> @@ -373,7 +380,7 @@ class QEMUMachine(object): >> """ >> Poll for one queued QMP events and return it >> """ >> - if len(self._events) > 0: >> + if self._events: >> return self._events.pop(0) >> return self._qmp.pull_event(wait=wait)