how do i replace character from string in list?-CodePudding

I wanted to try to make a simple game to play in my terminal and I am stuck on this problem.

I have tried

l[y][x] = l[y][x].replace(' ','2')

And

l[y][x] = '2'

And all of these returns a type error 'str' object does not support item assignment. how do I solve the problem above?

Edit: l contains

['111111111',
 '120000001',
 '100000001',
 '100000001',
 '111111111'
]

CodePudding user response：

You need to convert your list l into characters - what you have is a list of string elements.

#convert elements into characters 
m = [list(x) for x in l]
print(m)

print(m[1][2])

m[1][2] = m[1][2].replace('0', '9')
print(m[1][2])