将字符串数组拆分为2D字符数组

Question

I am trying to split an array of strings into a 2d array of characters from each string

lines = ['abc','123','ggg']
list(lines)
print lines
#['abc','123','ggg']
#nothing changed
#I want [['a','b','c'],['1','2','3'] etc..

Whereas with one string,

print list('lala')
#['l', 'a', 'l', 'a']
#It works!

Thanks

Answer 1

Using map() :

>>> map(list, lines)
[['a', 'b', 'c'], ['1', '2', '3'], ['g', 'g', 'g']]

Or with a list comprehension :

>>> [list(line) for line in lines]
[['a', 'b', 'c'], ['1', '2', '3'], ['g', 'g', 'g']]