feature request: a better str.endswith
Michele Simionato
mis6 at pitt.edu
Mon Jul 21 14:04:25 EDT 2003
chrisperkins37 at hotmail.com (Chris Perkins) wrote in message news:<45228044.0307210522.1ef95144 at posting.google.com>...
> def the(pred,seq): return True in itertools.imap(pred,seq)
BTW, this suggest to me two short idiomas for multiple "or" and multiple "and",
with shortcut behavior:
def imultior(pred,iterable):
return True in itertools.imap(pred,iterable)
def imultiand(pred,iterable):
return not(False in itertools.imap(pred,iterable))
Nevertheless, they seem to be slower than the non-iterator-based
implementation :-( (at least in some preliminary profiling I did
using a list and a custom defined predicate function)
def multiand(pred,iterable):
istrue=True
for item in iterable:
istrue=istrue and pred(item)
if not istrue: return False
return True
def multior(pred,iterable):
istrue=False
for item in iterable:
istrue=istrue or pred(item)
if istrue: return True
return False
M.
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