Stefan Behnel <[EMAIL PROTECTED]> writes:
> def find_index(seq, value):
> try:
> find_index = seq.index
> except AttributeError:
> def find_index(value):
> for i,v in enumerate(seq):
> if v == value: return i
> raise ValueError("index(seq, x): x not in sequence")
> return find_index(value)
>
It doesn't seem like a great idea to do operations like that on
mutable iterators. But if you must:
from itertools import dropwhile
def find_index(seq, value):
a = dropwhile (lambda x: x[1] != value, enumerate(seq))
return a.next()[0]
seems more direct. I think it will raises StopIteration if the value
is not found.
--
http://mail.python.org/mailman/listinfo/python-list
