On Wed, Sep 6, 2017 at 10:11 AM, R. David Murray firstname.lastname@example.org 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:
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)
Or this, which uses the condition purely as a descriptor:
while "moar socket data": data = sock.read() break if not data process(data)
Also - shouldn't this be being discussed first on python-ideas?