Re: 'str' object does not support item assignment

[MRAB]

On 2012-09-23 19:31, jimbo1qaz wrote:

spots[y][x]=mark fails with a "'str' object does not support item assignment" 
error,even though:

a=[["a"]]
a[0][0]="b"

and:

a=[["a"]]
a[0][0]=1000000

both work.
Spots is a nested list created as a copy of another list.

The error suggests that spots[y] is actually a string. Printing
repr(spots) and repr(spots[y]) should tell you whether it is.
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