Easy Q

Jean-Michel Pichavant jeanmichel at sequans.com
Mon Jan 11 15:00:40 CET 2010


Victor Subervi wrote:
> On Sat, Jan 9, 2010 at 11:56 AM, Gary Herron 
> <gherron at islandtraining.com <mailto:gherron at islandtraining.com>> wrote:
>
>     Victor Subervi wrote:
>
>         Hi;
>         I have a string.join statement on a variable that comes from a
>         cgi.FieldStorage().getlist. The variable may be a list or a
>         single value. I need to treat it differently depending on
>         which it is. How can I distinguish it? len(var) will obviously
>         give me the length of the string if it's a string and the
>         length of the list if it's a list.
>         TIA,
>         beno
>
>
>     Like this:
>
>     if isinstance(var, list):
>      ... join ...
>     else:
>      ... ??? ...
>
>
> Right.. Thanks!
> beno
You should definitely check again MRAB's answer.
Having getlist returning something else than a list, especially a non 
iterable single item *is* suspicious.
Usually, properly designed functions return consistent types over calls.

JM



More information about the Python-list mailing list