[Python-ideas] Proposal: A Reduce-Map Comprehension and a "last" builtin

[Serhiy Storchaka]

05.04.18 19:52, Peter O'Connor пише:
> I propose a new "Reduce-Map" comprehension that allows us to write:
> 
> signal = [math.sin(i*0.01) + random.normalvariate(0, 0.1)for iin range(1000)]
> smooth_signal = [average = (1-decay)*average + decay*xfor xin signalfrom average=0.]

Using currently supported syntax:

     smooth_signal = [average for average in [0] for x in signal
                      for average in [(1-decay)*average + decay*x]]