On Sat, Feb 6, 2010 at 10:35 AM, David <ld...@gmx.net> wrote:
> Hello again,
>
> in Knowlton's 2008 book "Python: Create, Modify, Reuse" the author makes
> frequent use of the term -1 in his code, but doesn't tell to what aim. For
> want of search terms Google is not helpful. Could someone please enlighten
> me by means of a one-liner as a reply?
>
>
In [1]: item = 'some string'
In [3]: help(item.find)
Help on built-in function find:
find(...)
S.find(sub [,start [,end]]) -> int
Return the lowest index in S where substring sub is found,
such that sub is contained within s[start:end]. Optional
arguments start and end are interpreted as in slice notation.
Return -1 on failure.
HTH,
Wayne
> Thank you!
>
> David
>
>
> Example Code:
>
> for item in filelist:
> if item.find(extension)!= -1:
> snaplist.append(item)
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--
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gluttonous, mendacious, violent, lascivious, lazy, cowardly: every weakness,
every vice, has found its defenders, its rhetoric, its ennoblement and
exaltation, but stupidity hasn’t. - Primo Levi
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