Data Representation?

[AK]

In article <abc3fdd3.0310111540.37400ed6 at posting.google.com>, Kris
Caselden wrote:
> Say I have some data:
> 
>>>> a=[1]
>>>> b=[2]
>>>> link=[a,b]
> 
> The simplest why to write this to a file represents it as
> 
>>>> print str(link)
> [[1], [2]]
> 
> Unfortunately, if this is read back in via execfile(), the whole
> dynamic nature of changing 'link' by changing 'a' and 'b' is lost. Is
> there any way to write data so that the list name is written instead
> of the list's values? Essentially, '[[a], [b]]' instead of '[[1],
> [2]]'? Any help most appreciated.

Sure, look at pickle and shelve modules in library reference.

shelve works kind of like this:

s = shelve.open('filename')
s['a'] = a
s.close()

s = shelve.open('filename')
a = s['a']
print a

code not tested..

 -AK