Re: [RFC PATCH] python: add __repr__ to ConsoleSocket to aid debugging

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

Hi Willian,

On 12/7/20 10:35 PM, Willian Rampazzo wrote:
> On Mon, Dec 7, 2020 at 5:10 PM Alex Bennée <alex.bennee@linaro.org> wrote:
>>
>> While attempting to debug some console weirdness I thought it would be
>> worth making it easier to see what it had inside.
>>
>> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
>> ---
>>  python/qemu/console_socket.py | 8 ++++++++
>>  1 file changed, 8 insertions(+)
>>
>> diff --git a/python/qemu/console_socket.py b/python/qemu/console_socket.py
>> index f060d79e06..77966d1fe9 100644
>> --- a/python/qemu/console_socket.py
>> +++ b/python/qemu/console_socket.py
>> @@ -45,6 +45,14 @@ class ConsoleSocket(socket.socket):
>>          if drain:
>>              self._drain_thread = self._thread_start()
>>
>> +    def __repr__(self):
>> +        s = super(ConsoleSocket, self).__repr__()
>> +        s = s.rstrip(">")
>> +        s += ", logfile=%s" % (self._logfile)
>> +        s += ", drain_thread=%s" % (self._drain_thread)
>> +        s += ">"
> 
> We could use something more pythonic for this file. Instead of 3
> string concatenations, my suggestion is to go with string formatting,
> like:
> 
> s = "%s,  logfile=%s, drain_thread=%s>" % (s, self._logfile, self._drain_thread)
> 
> As str is immutable in Python, it avoids unnecessary copies.

With this (and John's comment) addressed, are you OK to add
your R-b tag?

> 
>> +        return s
>> +
>>      def _drain_fn(self) -> None:
>>          """Drains the socket and runs while the socket is open."""
>>          while self._open:
>> --
>> 2.20.1
>>
>>
> 
>