why i have the output of [None, None, None]
Johannes Schneider
johannes.schneider at galileo-press.de
Thu Apr 10 09:59:48 EDT 2014
because thats the return value of [...]
print retuns None.
On 10.04.2014 15:54, length power wrote:
> >>> x=['','x1','x2','x3',' ']
> >>> x
> ['', 'x1', 'x2', 'x3', ' ']
> >>> [print("ok") for it in x if it.strip() !=""]
> ok
> ok
> ok
> [None, None, None]
>
> i understand there are three 'ok' in the output,but why i have the
> output of [None, None, None]
>
>
--
Johannes Schneider
Webentwicklung
johannes.schneider at galileo-press.de
Tel.: +49.228.42150.xxx
Galileo Press GmbH
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