mapping None values to ''

[Steven Bethard]

Scott David Daniels wrote:
> Roberto Bonvallet wrote:
>> imho <certo at comeno.it>:
>>> map(lambda x:"" , [i for i in [a,b,c] if i in ("None",None) ])
>> You don't need map when using list comprehensions:
>>    ["" for i in [a, b, c] if i in ("None", None)]
>>
> More like:
> 
>     [(i, "")[i in ("None", None)] for i in [a,b,c]]

Or in Python 2.5:

Python 2.5a2 (trunk:46491M, May 27 2006, 14:43:55) [MSC v.1310 32 bit 
(Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
 >>> a = 0
 >>> b = None
 >>> c = None
 >>> a, b, c = ('' if x in (None, 'None') else x for x in (a, b, c))
 >>> a, b, c
(0, '', '')

But someone please shoot me if I ever use something like that in 
production code. ;)

STeVe