"johnf" <jfabi...@yolo.com> wrote
I want to save the list to the field and when I retrieve the string
convert
it back to a list.
But this does NOT work.
mylist=[1,2,3,4]
mystr=str(mylist)
newlist= list(mystr)
I keep thinking there must be a simple way of get this done.
Is this a good way?
newlist = eval(mystr)
eval has all sorts of security implications so I wouldn't recommend
it where you are reading data fropm an external source.
One thing that might work is this:
L = [1,2,3,4,5]
s1 = ','.join(str(n) for n in L)
s1
'1,2,3,4,5'
newlist = [int(n) for n in s1.split(',')]
newlist
[1, 2, 3, 4, 5]
Provided your original data doesn't have commas to start with
it should work, I think... And the data needs to be pretty
homogenous to allow a single conversion function.
--
Alan Gauld
Author of the Learn to Program web site
http://www.alan-g.me.uk/
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