if statement on lenght of a list

[Jerry Hill]

On Tue, May 17, 2011 at 2:02 PM, Joe Leonardo <joe.leonardo at datalogix.com>wrote:

> Hey all,
>
>
>
> Totally baffled by this…maybe I need a nap. Writing a small function to
> reject input that is not a list of 19 fields.
>
>
>
> def breakLine(value):
>
>     if value.__class__() != [] and value.__len__() != 19:
>
>
This should use an "or" test, not "and".  And is probably better written as:
    if not isinstance(value, list) or len(value) != 19:

That would allow for subclasses of list, assuming that would be okay.

-- 
Jerry
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