[Python-ideas] CSV api with conversion

[Bruce Leban]

Sure I could do that. I just this think if you're making a convenience
function like this you should strive to make it more convenient.  :-)

--- Bruce
(via android)

On Apr 14, 2010 4:03 PM, "MRAB" <python at mrabarnett.plus.com> wrote:

Bruce Leban wrote:
>
> If you do this, you'll probably want to support mapping empty values. That
is...
The actual values read from the CSV file are strings and you're passing
them to functions:

   int("1"), str("")
   int(""), str("2")

If you want it to return a default value instead of raising an exception
on an empty field then you should pass a conversion function which does
that, for example:

   def int_or_none(field):
       if field.strip():
          return int(field)
       else:
          return None

> --- Bruce
> > http://www.vroospeak.com
> >
> >
>
> > On Mon, Apr 12, 2010 at 3:24 AM, Éric Araujo <merwok at netwok.org <mailto:
> merwok at netwok.org>> wrote:...
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