Remove comma from tuples in python.
travisgriggs at gmail.com
Fri Feb 21 18:48:42 CET 2014
On Feb 21, 2014, at 6:32 AM, Roy Smith <roy at panix.com> wrote:
> In article <mailman.7230.1392992078.18130.python-list at python.org>,
> Peter Otten <__peter__ at web.de> wrote:
>> [x*x for (x,) in lst]
>> [paraphrasing...] can be better written as:
>> [x*x for [x] in items]
> I'm torn between, "Yes, the second form is distinctly easier to read"
> and, "If you think the second form is easier to read, you're admitting
> you're not really fluent in Python”.
I’ve used the comma form with struct.unpack() frequently:
count, = struct.unpack(‘!I’, self.packet)
That’s after I don’t use it and end up scratching my head for a while and finally remember that unpack returns a tuple regardless of how many things I unpack from it. It’s just natural if you’re doing lots of single unpacks to think it returns a single value. Either way, I much prefer it to:
count = struct.unpack(‘!I’, self.packet)
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