planetthoughtful wrote:
> Hi All,
>
> As always, my posts come with a 'Warning: Newbie lies ahead!'
> disclaimer...
>
> I'm wondering if it's possible, using raw_input(), to provide a
> 'default' value with the prompt?
>
> I would like to include the ability to edit an existing value (drawn
> from an SQLite table) using a DOS console Python app, but my gut
> feeling from reading what I can find about raw_input() is that it only
> allows you to provide a prompt, not a default value as well.
>
> If anyone can give me any advice on how I might achieve this, I would
> be immensely appreciative!
>
> Many thanks and much warmth,
>
> planetthoughtful
>
You need to define your own function, with a default argument that gives
the value. You can make it work just like raw_input if no default value
is provided. Something like:
>>> def raw_default(prompt, dflt=None):
... if dflt:
... prompt = "%s [%s]: " % (prompt, dflt)
... res = raw_input(prompt)
... if not res and dflt:
... return dflt
... return res
...
>>> raw_default("How many beans make five", '5')
How many beans make five [5]: six
'six'
>>> raw_default("How many beans make five")
How many beans make fiveten
'ten'
>>> raw_default("How many beans make five", '5')
How many beans make five [5]:
'5'
regards
Steve
--
Steve Holden +44 150 684 7255 +1 800 494 3119
Holden Web LLC www.holdenweb.com
PyCon TX 2006 www.python.org/pycon/
--
http://mail.python.org/mailman/listinfo/python-list
