Length of an Unsized Object

[Stephen Hansen]

On Thu, Dec 31, 2009 at 8:09 AM, Victor Subervi <victorsubervi at gmail.com>wrote:

> Hi;
> I have this code:
>
>         sql = 'describe %s %s;' % (optionsStore, option)
>         print sql
>         cursor.execute(sql)
>         descr = cursor.fetchone()
>         if len(descr) is not None:
>
> Python complains:
>
> *TypeError*: len() of unsized object
>
> Please advise how to rewrite the last line so as to avoid the infamous
> try/except.
>

The test itself makes no sense; len returns an integer, and can never be
None.

Simply do:

   if descr:

HTH,

--S
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