Re: [PATCH v4 00/16] python: add mypy support to python/qemu

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

+Cleber/Wainer.

On 6/26/20 10:41 PM, John Snow wrote:
> Based-on: 20200626202350.11060-1-jsnow@redhat.com
> 
> This series modifies the python/qemu library to comply with mypy --strict.
> This requires my "refactor shutdown" patch as a pre-requisite.
> 
> v4:
> 001/16:[----] [--] 'python/qmp.py: Define common types'
> 002/16:[----] [--] 'iotests.py: use qemu.qmp type aliases'
> 003/16:[----] [--] 'python/qmp.py: re-absorb MonitorResponseError'
> 004/16:[----] [--] 'python/qmp.py: Do not return None from cmd_obj'
> 005/16:[----] [--] 'python/qmp.py: add casts to JSON deserialization'
> 006/16:[----] [--] 'python/qmp.py: add QMPProtocolError'
> 007/16:[----] [--] 'python/machine.py: Fix monitor address typing'
> 008/16:[----] [--] 'python/machine.py: reorder __init__'
> 009/16:[----] [--] 'python/machine.py: Don't modify state in _base_args()'
> 010/16:[----] [--] 'python/machine.py: Handle None events in events_wait'
> 011/16:[----] [--] 'python/machine.py: use qmp.command'
> 012/16:[0010] [FC] 'python/machine.py: Add _qmp access shim'
> 013/16:[----] [-C] 'python/machine.py: fix _popen access'
> 014/16:[----] [--] 'python/qemu: make 'args' style arguments immutable'
> 015/16:[----] [--] 'iotests.py: Adjust HMP kwargs typing'
> 016/16:[----] [-C] 'python/qemu: Add mypy type annotations'
> 
>  - Rebased on "refactor shutdown" v4
>  - Fixed _qmp access for scripts that disable QMP

See:

https://travis-ci.org/github/philmd/qemu/jobs/702507625#L5439

/ # uname -a
Linux buildroot 4.5.0-2-4kc-malta #1 Debian 4.5.5-1 (2016-05-29) mips
GNU/Linux
/ # reboot
/ # reboot: Restarting system
>>> {'execute': 'quit'}
qemu received signal 9; command: "mips-softmmu/qemu-system-mips -display
none -vga none -chardev
socket,id=mon,path=/tmp/tmpcojsc5u3/qemu-14540-monitor.sock -mon
chardev=mon,mode=control -machine malta -chardev
socket,id=console,path=/tmp/tmpcojsc5u3/qemu-14540-console.sock,server,nowait
-serial chardev:console -kernel
/tmp/avocado_xgmck2k5/avocado_job_83wkzs2f/12-tests_acceptance_boot_linux_console.py_BootLinuxConsole.test_mips_malta_cpio/boot/vmlinux-4.5.0-2-4kc-malta
-initrd
/tmp/avocado_xgmck2k5/avocado_job_83wkzs2f/12-tests_acceptance_boot_linux_console.py_BootLinuxConsole.test_mips_malta_cpiorootfs.cpio
-append printk.time=0 console=ttyS0 console=tty rdinit=/sbin/init
noreboot -no-reboot"

Reproduced traceback from:
/home/travis/build/philmd/qemu/build/tests/venv/lib/python3.6/site-packages/avocado/core/test.py:886
Traceback (most recent call last):
  File
"/home/travis/build/philmd/qemu/build/tests/acceptance/avocado_qemu/__init__.py",
line 195, in tearDown
    vm.shutdown()
  File "/home/travis/build/philmd/qemu/python/qemu/machine.py", line
457, in shutdown
    self._do_shutdown(has_quit)
  File "/home/travis/build/philmd/qemu/python/qemu/machine.py", line
434, in _do_shutdown
    self._soft_shutdown(has_quit, timeout)
  File "/home/travis/build/philmd/qemu/python/qemu/machine.py", line
414, in _soft_shutdown
    self._qmp.cmd('quit')
  File "/home/travis/build/philmd/qemu/python/qemu/qmp.py", line 271, in cmd
    return self.cmd_obj(qmp_cmd)
  File "/home/travis/build/philmd/qemu/python/qemu/qmp.py", line 249, in
cmd_obj
    self.__sock.sendall(json.dumps(qmp_cmd).encode('utf-8'))
BrokenPipeError: [Errno 32] Broken pipe