Raymond Hettinger added the comment:
I suppose that when the input iterator is exhausted, we could poison the
currkey to make the subordinate iterator ends as well:
def __next__(self):
while self.currkey == self.tgtkey:
try:
self.currvalue = next(self.it)
except StopIteration:
self.currkey = object()
raise StopIteration from None
self.currkey = self.keyfunc(self.currvalue)
self.tgtkey = self.currkey
return (self.currkey, self._grouper(self.tgtkey))
----------
_______________________________________
Python tracker <[email protected]>
<http://bugs.python.org/issue30346>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe:
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
