On Wed, 06 Sep 2017 15:05:51 +1000, Chris Angelico <ros...@gmail.com> wrote: > On Wed, Sep 6, 2017 at 10:11 AM, R. David Murray <rdmur...@bitdance.com> > wrote: > > I've written a PEP proposing a small enhancement to the Python loop > > control statements. Short version: here's what feels to me like a > > Pythonic way to spell "repeat until": > > > > while: > > <do stuff> > > break if <done condition> > > > > The PEP goes into some detail on why this feels like a readability > > improvement in the more general case, with examples taken from > > the standard library: > > > > https://www.python.org/dev/peps/pep-0548/ > > Is "break if" legal in loops that have their own conditions as well, > or only in a bare "while:" loop? For instance, is this valid? > > while not found_the_thing_we_want: > data = sock.read() > break if not data > process(data)
Yes. > Or this, which uses the condition purely as a descriptor: > > while "moar socket data": > data = sock.read() > break if not data > process(data) Yes. > Also - shouldn't this be being discussed first on python-ideas? Yep, you are absolutely right. Someone has told me I also missed a related discussion on python-ideas in my searching for prior discussions. (I haven't looked for it yet...) I'll blame jet lag :) --David _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
